{"id":370,"date":"2025-04-15T09:10:27","date_gmt":"2025-04-15T09:10:27","guid":{"rendered":"https:\/\/www.coefficientfriction.com\/?page_id=370"},"modified":"2025-04-16T01:45:55","modified_gmt":"2025-04-16T01:45:55","slug":"astm-d4917","status":"publish","type":"page","link":"https:\/\/www.coefficientfriction.com\/el\/astm-d4917","title":{"rendered":"ASTM D4917"},"content":{"rendered":"<div data-elementor-type=\"wp-page\" data-elementor-id=\"370\" class=\"elementor elementor-370\" data-elementor-post-type=\"page\">\n\t\t\t\t<div class=\"elementor-element elementor-element-e87c6b2 e-flex e-con-boxed e-con e-parent\" data-id=\"e87c6b2\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-d087c52 e-con-full e-flex e-con e-child\" data-id=\"d087c52\" data-element_type=\"container\" data-settings=\"{&quot;animation&quot;:&quot;none&quot;}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-d9f31fd elementor-invisible elementor-widget elementor-widget-image\" data-id=\"d9f31fd\" data-element_type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;zoomIn&quot;}\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"600\" height=\"200\" src=\"https:\/\/www.coefficientfriction.com\/wp-content\/uploads\/2025\/04\/ASTM-D4197.webp\" class=\"attachment-large size-large wp-image-372\" alt=\"ASTM D4197\" srcset=\"https:\/\/www.coefficientfriction.com\/wp-content\/uploads\/2025\/04\/ASTM-D4197.webp 600w, https:\/\/www.coefficientfriction.com\/wp-content\/uploads\/2025\/04\/ASTM-D4197-300x100.webp 300w, https:\/\/www.coefficientfriction.com\/wp-content\/uploads\/2025\/04\/ASTM-D4197-18x6.webp 18w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-60fbb6b e-con-full e-flex e-con e-child\" data-id=\"60fbb6b\" data-element_type=\"container\" data-settings=\"{&quot;animation&quot;:&quot;none&quot;}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-0e3633c elementor-invisible elementor-widget elementor-widget-heading\" data-id=\"0e3633c\" data-element_type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;zoomIn&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">\u039c\u03ad\u03b8\u03bf\u03b4\u03bf\u03c2 \u03b4\u03bf\u03ba\u03b9\u03bc\u03ae\u03c2 \u03c4\u03bf\u03c5 \u03c3\u03c5\u03bd\u03c4\u03b5\u03bb\u03b5\u03c3\u03c4\u03ae \u03c3\u03c4\u03b1\u03c4\u03b9\u03ba\u03ae\u03c2 \u03ba\u03b1\u03b9 \u03ba\u03b9\u03bd\u03b7\u03c4\u03b9\u03ba\u03ae\u03c2 \u03c4\u03c1\u03b9\u03b2\u03ae\u03c2 \u03c4\u03b7\u03c2 \u03bc\u03b5\u03b8\u03cc\u03b4\u03bf\u03c5 \u03bf\u03c1\u03b9\u03b6\u03cc\u03bd\u03c4\u03b9\u03bf\u03c5 \u03b5\u03c0\u03b9\u03c0\u03ad\u03b4\u03bf\u03c5<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a73bac6 elementor-invisible elementor-widget elementor-widget-text-editor\" data-id=\"a73bac6\" data-element_type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInUp&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p class=\"\" data-start=\"499\" data-end=\"1017\">\u0397 \u03ba\u03b1\u03c4\u03b1\u03bd\u03cc\u03b7\u03c3\u03b7 \u03c4\u03b7\u03c2 \u03c3\u03c5\u03bc\u03c0\u03b5\u03c1\u03b9\u03c6\u03bf\u03c1\u03ac\u03c2 \u03c4\u03c1\u03b9\u03b2\u03ae\u03c2 \u03c4\u03bf\u03c5 \u03c7\u03b1\u03c1\u03c4\u03b9\u03bf\u03cd \u03b5\u03af\u03bd\u03b1\u03b9 \u03b1\u03c0\u03b1\u03c1\u03b1\u03af\u03c4\u03b7\u03c4\u03b7 \u03b3\u03b9\u03b1 \u03c4\u03b7 \u03b4\u03b9\u03b1\u03c3\u03c6\u03ac\u03bb\u03b9\u03c3\u03b7 \u03c4\u03b7\u03c2 \u03b2\u03ad\u03bb\u03c4\u03b9\u03c3\u03c4\u03b7\u03c2 \u03b1\u03c0\u03cc\u03b4\u03bf\u03c3\u03b7\u03c2 \u03c3\u03c4\u03b9\u03c2 \u03b4\u03b9\u03b1\u03b4\u03b9\u03ba\u03b1\u03c3\u03af\u03b5\u03c2 \u03b5\u03ba\u03c4\u03cd\u03c0\u03c9\u03c3\u03b7\u03c2, \u03bc\u03b5\u03c4\u03b1\u03c0\u03bf\u03af\u03b7\u03c3\u03b7\u03c2 \u03ba\u03b1\u03b9 \u03c3\u03c5\u03c3\u03ba\u03b5\u03c5\u03b1\u03c3\u03af\u03b1\u03c2. <strong data-start=\"643\" data-end=\"657\">ASTM D4917<\/strong> \u03c0\u03b5\u03c1\u03b9\u03b3\u03c1\u03ac\u03c6\u03b5\u03b9 \u03bc\u03b9\u03b1 \u03c4\u03c5\u03c0\u03bf\u03c0\u03bf\u03b9\u03b7\u03bc\u03ad\u03bd\u03b7 \u03b4\u03b9\u03b1\u03b4\u03b9\u03ba\u03b1\u03c3\u03af\u03b1 \u03b3\u03b9\u03b1 \u03c4\u03b7 \u03bc\u03ad\u03c4\u03c1\u03b7\u03c3\u03b7 \u03c4\u03b7\u03c2 <em data-start=\"710\" data-end=\"754\">\u03c3\u03c5\u03bd\u03c4\u03b5\u03bb\u03b5\u03c3\u03c4\u03ae\u03c2 \u03c3\u03c4\u03b1\u03c4\u03b9\u03ba\u03ae\u03c2 \u03ba\u03b1\u03b9 \u03ba\u03b9\u03bd\u03b7\u03c4\u03b9\u03ba\u03ae\u03c2 \u03c4\u03c1\u03b9\u03b2\u03ae\u03c2<\/em> \u03c4\u03bf\u03c5 \u03bc\u03b7 \u03b5\u03c0\u03b9\u03ba\u03b1\u03bb\u03c5\u03bc\u03bc\u03ad\u03bd\u03bf\u03c5 \u03c7\u03b1\u03c1\u03c4\u03b9\u03bf\u03cd \u03b5\u03ba\u03c4\u03cd\u03c0\u03c9\u03c3\u03b7\u03c2 \u03ba\u03b1\u03b9 \u03b3\u03c1\u03b1\u03c6\u03ae\u03c2, \u03ba\u03b1\u03b8\u03bf\u03b4\u03b7\u03b3\u03ce\u03bd\u03c4\u03b1\u03c2 \u03c4\u03bf\u03c5\u03c2 \u03b5\u03c0\u03b1\u03b3\u03b3\u03b5\u03bb\u03bc\u03b1\u03c4\u03af\u03b5\u03c2 \u03c4\u03bf\u03c5 \u03c0\u03bf\u03b9\u03bf\u03c4\u03b9\u03ba\u03bf\u03cd \u03b5\u03bb\u03ad\u03b3\u03c7\u03bf\u03c5 \u03c3\u03c4\u03bf\u03bd \u03c0\u03c1\u03bf\u03c3\u03b4\u03b9\u03bf\u03c1\u03b9\u03c3\u03bc\u03cc \u03c4\u03bf\u03c5 \u03c4\u03c1\u03cc\u03c0\u03bf\u03c5 \u03bc\u03b5 \u03c4\u03bf\u03bd \u03bf\u03c0\u03bf\u03af\u03bf \u03c4\u03bf \u03c7\u03b1\u03c1\u03c4\u03af \u03b1\u03bb\u03bb\u03b7\u03bb\u03b5\u03c0\u03b9\u03b4\u03c1\u03ac \u03bc\u03b5 \u03c4\u03bf\u03bd \u03b5\u03b1\u03c5\u03c4\u03cc \u03c4\u03bf\u03c5 \u03ae \u03bc\u03b5 \u03ac\u03bb\u03bb\u03b1 \u03c5\u03bb\u03b9\u03ba\u03ac \u03c5\u03c0\u03cc \u03ba\u03af\u03bd\u03b7\u03c3\u03b7.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-0364755 e-flex e-con-boxed e-con e-parent\" data-id=\"0364755\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-f673fbc elementor-invisible elementor-widget elementor-widget-heading\" data-id=\"f673fbc\" data-element_type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInUp&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">ASTM D4917 \u0394\u03bf\u03ba\u03b9\u03bc\u03ae \u03c3\u03c5\u03bd\u03c4\u03b5\u03bb\u03b5\u03c3\u03c4\u03ae \u03c4\u03c1\u03b9\u03b2\u03ae\u03c2 \u03c7\u03b1\u03c1\u03c4\u03b9\u03bf\u03cd \u03c3\u03b7\u03bc\u03b1\u03c3\u03af\u03b1\u03c2<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-156f03e elementor-invisible elementor-widget elementor-widget-text-editor\" data-id=\"156f03e\" data-element_type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInUp&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p class=\"\" data-start=\"1079\" data-end=\"1532\">\u03a4\u03bf ASTM D4917 \u03c0\u03b1\u03c1\u03ad\u03c7\u03b5\u03b9 <strong data-start=\"1101\" data-end=\"1128\">\u03bc\u03ad\u03b8\u03bf\u03b4\u03bf\u03c2 \u03bf\u03c1\u03b9\u03b6\u03cc\u03bd\u03c4\u03b9\u03bf\u03c5 \u03b5\u03c0\u03b9\u03c0\u03ad\u03b4\u03bf\u03c5<\/strong> \u03b3\u03b9\u03b1 \u03c4\u03b7\u03bd \u03b1\u03be\u03b9\u03bf\u03bb\u03cc\u03b3\u03b7\u03c3\u03b7 \u03c4\u03b7\u03c2 \u03b1\u03bd\u03c4\u03af\u03c3\u03c4\u03b1\u03c3\u03b7\u03c2 \u03bf\u03bb\u03af\u03c3\u03b8\u03b7\u03c3\u03b7\u03c2 \u03c4\u03bf\u03c5 \u03c7\u03b1\u03c1\u03c4\u03b9\u03bf\u03cd, \u03b9\u03b4\u03af\u03c9\u03c2 <strong data-start=\"1187\" data-end=\"1206\">\u03c7\u03b1\u03c1\u03c4\u03b9\u03ac \u03c7\u03c9\u03c1\u03af\u03c2 \u03b5\u03c0\u03b9\u03ba\u03ac\u03bb\u03c5\u03c8\u03b7<\/strong>, \u03c3\u03b5 \u03c3\u03c5\u03bd\u03b8\u03ae\u03ba\u03b5\u03c2 \u03c0\u03c1\u03b1\u03b3\u03bc\u03b1\u03c4\u03b9\u03ba\u03ae\u03c2 \u03c7\u03c1\u03ae\u03c3\u03b7\u03c2. \u0397 \u03b4\u03bf\u03ba\u03b9\u03bc\u03ae \u03ad\u03c7\u03b5\u03b9 \u03c3\u03c7\u03b5\u03b4\u03b9\u03b1\u03c3\u03c4\u03b5\u03af \u03b3\u03b9\u03b1 \u03c4\u03b7\u03bd \u03c0\u03c1\u03bf\u03c3\u03bf\u03bc\u03bf\u03af\u03c9\u03c3\u03b7 \u03c4\u03c9\u03bd \u03b4\u03c5\u03bd\u03ac\u03bc\u03b5\u03c9\u03bd \u03c0\u03bf\u03c5 \u03b1\u03c3\u03ba\u03bf\u03cd\u03bd\u03c4\u03b1\u03b9 \u03c3\u03c4\u03b1 \u03c6\u03cd\u03bb\u03bb\u03b1 \u03c7\u03b1\u03c1\u03c4\u03b9\u03bf\u03cd \u03ba\u03b1\u03c4\u03ac \u03c4\u03b7 \u03b4\u03b9\u03ac\u03c1\u03ba\u03b5\u03b9\u03b1 \u03b4\u03b9\u03b1\u03b4\u03b9\u03ba\u03b1\u03c3\u03b9\u03ce\u03bd \u03cc\u03c0\u03c9\u03c2 <strong data-start=\"1324\" data-end=\"1373\">\u03b5\u03ba\u03c4\u03cd\u03c0\u03c9\u03c3\u03b7, \u03c4\u03c1\u03bf\u03c6\u03bf\u03b4\u03bf\u03c3\u03af\u03b1 \u03c3\u03b5 \u03c6\u03c9\u03c4\u03bf\u03c4\u03c5\u03c0\u03b9\u03ba\u03ac \u03bc\u03b7\u03c7\u03b1\u03bd\u03ae\u03bc\u03b1\u03c4\u03b1 \u03ba\u03b1\u03b9 \u03c3\u03c5\u03c3\u03ba\u03b5\u03c5\u03b1\u03c3\u03af\u03b1<\/strong>. \u0395\u03be\u03b1\u03c3\u03c6\u03b1\u03bb\u03af\u03b6\u03b5\u03b9 \u03c3\u03c5\u03bd\u03b5\u03c0\u03ae <strong data-start=\"1397\" data-end=\"1427\">\u03b1\u03bb\u03bb\u03b7\u03bb\u03b5\u03c0\u03af\u03b4\u03c1\u03b1\u03c3\u03b7 \u03c6\u03cd\u03bb\u03bb\u03bf \u03bc\u03b5 \u03c6\u03cd\u03bb\u03bb\u03bf<\/strong>, \u03b2\u03bf\u03b7\u03b8\u03ce\u03bd\u03c4\u03b1\u03c2 \u03c4\u03bf\u03c5\u03c2 \u03ba\u03b1\u03c4\u03b1\u03c3\u03ba\u03b5\u03c5\u03b1\u03c3\u03c4\u03ad\u03c2 \u03bd\u03b1 \u03b4\u03b9\u03b1\u03c4\u03b7\u03c1\u03ae\u03c3\u03bf\u03c5\u03bd <strong data-start=\"1460\" data-end=\"1504\">\u03b1\u03ba\u03b5\u03c1\u03b1\u03b9\u03cc\u03c4\u03b7\u03c4\u03b1 \u03c4\u03bf\u03c5 \u03c0\u03c1\u03bf\u03ca\u03cc\u03bd\u03c4\u03bf\u03c2, \u03c3\u03c5\u03bc\u03b2\u03b1\u03c4\u03cc\u03c4\u03b7\u03c4\u03b1 \u03bc\u03b5 \u03c4\u03bf \u03bc\u03b7\u03c7\u03ac\u03bd\u03b7\u03bc\u03b1<\/strong>, \u03ba\u03b1\u03b9 \u03c4\u03b7\u03bd \u03b9\u03ba\u03b1\u03bd\u03bf\u03c0\u03bf\u03af\u03b7\u03c3\u03b7 \u03c4\u03c9\u03bd \u03c4\u03b5\u03bb\u03b9\u03ba\u03ce\u03bd \u03c7\u03c1\u03b7\u03c3\u03c4\u03ce\u03bd.<\/p><p class=\"\" data-start=\"1534\" data-end=\"1860\">\u039f\u03b9 \u03b9\u03b4\u03b9\u03cc\u03c4\u03b7\u03c4\u03b5\u03c2 \u03c4\u03c1\u03b9\u03b2\u03ae\u03c2 \u03b5\u03c0\u03b7\u03c1\u03b5\u03ac\u03b6\u03bf\u03c5\u03bd \u03ac\u03bc\u03b5\u03c3\u03b1 \u03c4\u03bf \u03c0\u03cc\u03c3\u03bf \u03b5\u03cd\u03ba\u03bf\u03bb\u03b1 \u03c4\u03c1\u03bf\u03c6\u03bf\u03b4\u03bf\u03c4\u03bf\u03cd\u03bd\u03c4\u03b1\u03b9 \u03c4\u03b1 \u03c6\u03cd\u03bb\u03bb\u03b1 \u03c7\u03b1\u03c1\u03c4\u03b9\u03bf\u03cd \u03bc\u03ad\u03c3\u03c9 \u03c4\u03bf\u03c5 \u03b5\u03be\u03bf\u03c0\u03bb\u03b9\u03c3\u03bc\u03bf\u03cd. \u039c\u03b9\u03b1 \u03c0\u03bf\u03bb\u03cd \u03c7\u03b1\u03bc\u03b7\u03bb\u03ae COF \u03bc\u03c0\u03bf\u03c1\u03b5\u03af \u03bd\u03b1 \u03bf\u03b4\u03b7\u03b3\u03ae\u03c3\u03b5\u03b9 \u03c3\u03b5 \u03b4\u03b9\u03c0\u03bb\u03ae \u03c4\u03c1\u03bf\u03c6\u03bf\u03b4\u03bf\u03c3\u03af\u03b1, \u03b5\u03bd\u03ce \u03bc\u03b9\u03b1 \u03c0\u03bf\u03bb\u03cd \u03c5\u03c8\u03b7\u03bb\u03ae COF \u03bc\u03c0\u03bf\u03c1\u03b5\u03af \u03bd\u03b1 \u03c0\u03c1\u03bf\u03ba\u03b1\u03bb\u03ad\u03c3\u03b5\u03b9 \u03b5\u03bc\u03c0\u03bb\u03bf\u03ba\u03ad\u03c2 \u03ae \u03ba\u03b1\u03ba\u03ae \u03c4\u03c1\u03bf\u03c6\u03bf\u03b4\u03bf\u03c3\u03af\u03b1. \u03a4\u03bf ASTM D4917 \u03b1\u03bd\u03c4\u03b9\u03bc\u03b5\u03c4\u03c9\u03c0\u03af\u03b6\u03b5\u03b9 \u03ba\u03b1\u03b9 \u03c4\u03b1 \u03b4\u03cd\u03bf <strong data-start=\"1737\" data-end=\"1771\">\u03b4\u03bf\u03ba\u03b9\u03bc\u03ae \u03ba\u03b9\u03bd\u03b7\u03c4\u03b9\u03ba\u03ae\u03c2 \u03c4\u03c1\u03b9\u03b2\u03ae\u03c2 \u03c7\u03b1\u03c1\u03c4\u03b9\u03bf\u03cd<\/strong> \u03ba\u03b1\u03b9 <strong data-start=\"1776\" data-end=\"1809\">\u03b4\u03bf\u03ba\u03b9\u03bc\u03ae \u03c3\u03c4\u03b1\u03c4\u03b9\u03ba\u03ae\u03c2 \u03c4\u03c1\u03b9\u03b2\u03ae\u03c2 \u03c7\u03b1\u03c1\u03c4\u03b9\u03bf\u03cd<\/strong> \u03bc\u03b5 \u03c0\u03c1\u03b1\u03ba\u03c4\u03b9\u03ba\u03ad\u03c2 \u03b4\u03b9\u03b1\u03b4\u03b9\u03ba\u03b1\u03c3\u03af\u03b5\u03c2 \u03ba\u03b1\u03b9 \u03bb\u03b5\u03c0\u03c4\u03bf\u03bc\u03b5\u03c1\u03b5\u03af\u03c2 \u03bf\u03b4\u03b7\u03b3\u03af\u03b5\u03c2.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-38e9bd9 elementor-invisible elementor-widget elementor-widget-heading\" data-id=\"38e9bd9\" data-element_type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInUp&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">\u0394\u03b9\u03b1\u03b4\u03b9\u03ba\u03b1\u03c3\u03af\u03b1 \u03b4\u03bf\u03ba\u03b9\u03bc\u03ae\u03c2 \u03c3\u03c5\u03bd\u03c4\u03b5\u03bb\u03b5\u03c3\u03c4\u03ae \u03c4\u03c1\u03b9\u03b2\u03ae\u03c2 ASTM D4917<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-b4a43e8 e-con-full e-flex e-con e-child\" data-id=\"b4a43e8\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-949eee6 elementor-widget__width-inherit elementor-invisible elementor-widget elementor-widget-text-editor\" data-id=\"949eee6\" data-element_type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInLeft&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p class=\"\" data-start=\"1914\" data-end=\"2019\">\u0393\u03b9\u03b1 \u03c4\u03b7 \u03b4\u03b9\u03b5\u03be\u03b1\u03b3\u03c9\u03b3\u03ae \u03b4\u03bf\u03ba\u03b9\u03bc\u03ce\u03bd \u03c4\u03c1\u03b9\u03b2\u03ae\u03c2 \u03c3\u03cd\u03bc\u03c6\u03c9\u03bd\u03b1 \u03bc\u03b5 \u03c4\u03bf ASTM D4917, \u03c4\u03b1 \u03b4\u03b5\u03af\u03b3\u03bc\u03b1\u03c4\u03b1 \u03c0\u03c1\u03ad\u03c0\u03b5\u03b9 \u03bd\u03b1 \u03b5\u03af\u03bd\u03b1\u03b9 <strong data-start=\"1983\" data-end=\"2003\">\u03ba\u03bf\u03bc\u03bc\u03ad\u03bd\u03b1 \u03ba\u03b1\u03b9 \u03c0\u03c1\u03bf\u03b5\u03c4\u03bf\u03b9\u03bc\u03b1\u03c3\u03bc\u03ad\u03bd\u03b1<\/strong> \u03bc\u03b5 \u03b1\u03ba\u03c1\u03af\u03b2\u03b5\u03b9\u03b1:<\/p><ul><li data-start=\"2023\" data-end=\"2149\">\u0393\u03b9\u03b1 \u03c4\u03bf <strong data-start=\"2027\" data-end=\"2052\">\u03ba\u03b1\u03c4\u03b5\u03cd\u03b8\u03c5\u03bd\u03c3\u03b7 \u03bc\u03b7\u03c7\u03b1\u03bd\u03ae\u03c2 COF<\/strong>, \u03c4\u03b1 \u03b4\u03bf\u03ba\u03af\u03bc\u03b9\u03b1 \u03ba\u03cc\u03b2\u03bf\u03bd\u03c4\u03b1\u03b9 \u03bc\u03b5 \u03c4\u03b7\u03bd \u03ba\u03b1\u03c4\u03b5\u03cd\u03b8\u03c5\u03bd\u03c3\u03b7 \u03c4\u03c9\u03bd \u03ba\u03cc\u03ba\u03ba\u03c9\u03bd \u03b5\u03c5\u03b8\u03c5\u03b3\u03c1\u03b1\u03bc\u03bc\u03b9\u03c3\u03bc\u03ad\u03bd\u03b7 \u03bc\u03b5 \u03c4\u03b7 \u03bc\u03b5\u03b3\u03b1\u03bb\u03cd\u03c4\u03b5\u03c1\u03b7 \u03b4\u03b9\u03ac\u03c3\u03c4\u03b1\u03c3\u03b7 (215 mm x 130 mm).<\/li><li data-start=\"2023\" data-end=\"2149\">\u0393\u03b9\u03b1 \u03c4\u03bf <strong data-start=\"2156\" data-end=\"2187\">\u03b4\u03b9\u03b1\u03b3\u03ce\u03bd\u03b9\u03b1 \u03ba\u03b1\u03c4\u03b5\u03cd\u03b8\u03c5\u03bd\u03c3\u03b7 \u03bc\u03b7\u03c7\u03b1\u03bd\u03ae\u03c2 COF<\/strong>, \u03bf \u03ba\u03cc\u03ba\u03ba\u03bf\u03c2 \u03c4\u03c1\u03ad\u03c7\u03b5\u03b9 \u03ba\u03b1\u03c4\u03ac \u03bc\u03ae\u03ba\u03bf\u03c2 \u03c4\u03b7\u03c2 \u03bc\u03b9\u03ba\u03c1\u03cc\u03c4\u03b5\u03c1\u03b7\u03c2 \u03c0\u03bb\u03b5\u03c5\u03c1\u03ac\u03c2.<\/li><li data-start=\"2023\" data-end=\"2149\">\u0397 \u03c0\u03c1\u03bf\u03b5\u03c4\u03bf\u03b9\u03bc\u03b1\u03c3\u03af\u03b1 \u03ba\u03b1\u03b9 \u03bf\u03b9 \u03b4\u03bf\u03ba\u03b9\u03bc\u03ad\u03c2 \u03c0\u03c1\u03ad\u03c0\u03b5\u03b9 \u03bd\u03b1 \u03b3\u03af\u03bd\u03bf\u03bd\u03c4\u03b1\u03b9 \u03c3\u03b5 \u03b5\u03bb\u03b5\u03b3\u03c7\u03cc\u03bc\u03b5\u03bd\u03bf \u03c0\u03b5\u03c1\u03b9\u03b2\u03ac\u03bb\u03bb\u03bf\u03bd, \u03cc\u03c0\u03c9\u03c2 \u03bf\u03c1\u03af\u03b6\u03b5\u03c4\u03b1\u03b9 \u03c3\u03c4\u03bf ASTM D685.<\/li><\/ul><p class=\"\" data-start=\"2327\" data-end=\"2654\">\u03a4\u03b1 \u03b4\u03bf\u03ba\u03af\u03bc\u03b9\u03b1 \u03b5\u03af\u03bd\u03b1\u03b9 \u03c4\u03bf\u03c0\u03bf\u03b8\u03b5\u03c4\u03b7\u03bc\u03ad\u03bd\u03b1 \u03c3\u03b5 \u03b6\u03b5\u03cd\u03b3\u03b7 - \u03c4\u03bf \u03ad\u03bd\u03b1 \u03c4\u03bf\u03c0\u03bf\u03b8\u03b5\u03c4\u03b7\u03bc\u03ad\u03bd\u03bf \u03c3\u03b5 \u03bf\u03c1\u03b9\u03b6\u03cc\u03bd\u03c4\u03b9\u03b1 \u03b5\u03c0\u03b9\u03c6\u03ac\u03bd\u03b5\u03b9\u03b1 \u03ba\u03b1\u03b9 \u03c4\u03bf \u03ac\u03bb\u03bb\u03bf \u03c0\u03c1\u03bf\u03c3\u03b1\u03c1\u03c4\u03b7\u03bc\u03ad\u03bd\u03bf \u03c3\u03b5 \u03ad\u03bd\u03b1 <strong data-start=\"2423\" data-end=\"2431\">\u03ad\u03bb\u03ba\u03b7\u03b8\u03c1\u03bf<\/strong>-\u03ba\u03b1\u03b9 \u03b4\u03bf\u03ba\u03b9\u03bc\u03ac\u03c3\u03c4\u03b7\u03ba\u03b5 \u03c7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03b9\u03ce\u03bd\u03c4\u03b1\u03c2 \u03ad\u03bd\u03b1 <strong data-start=\"2451\" data-end=\"2489\">\u03cc\u03c1\u03b3\u03b1\u03bd\u03bf \u03c3\u03c4\u03b1\u03b8\u03b5\u03c1\u03bf\u03cd \u03c1\u03c5\u03b8\u03bc\u03bf\u03cd \u03ba\u03af\u03bd\u03b7\u03c3\u03b7\u03c2<\/strong>. \u03a4\u03bf <strong data-start=\"2495\" data-end=\"2509\">static COF<\/strong> \u03ba\u03b1\u03c4\u03b1\u03b3\u03c1\u03ac\u03c6\u03b5\u03c4\u03b1\u03b9 \u03c9\u03c2 \u03b7 \u03b4\u03cd\u03bd\u03b1\u03bc\u03b7 \u03c0\u03bf\u03c5 \u03b1\u03c0\u03b1\u03b9\u03c4\u03b5\u03af\u03c4\u03b1\u03b9 \u03b3\u03b9\u03b1 \u03c4\u03b7\u03bd \u03ad\u03bd\u03b1\u03c1\u03be\u03b7 \u03c4\u03b7\u03c2 \u03ba\u03af\u03bd\u03b7\u03c3\u03b7\u03c2 \u03ba\u03b1\u03b9 \u03b7 <strong data-start=\"2572\" data-end=\"2587\">\u03ba\u03b9\u03bd\u03b7\u03c4\u03b9\u03ba\u03ae COF<\/strong> \u03c9\u03c2 \u03b7 \u03bc\u03ad\u03c3\u03b7 \u03b4\u03cd\u03bd\u03b1\u03bc\u03b7 \u03ba\u03b1\u03c4\u03ac \u03c4\u03b7 \u03b4\u03b9\u03ac\u03c1\u03ba\u03b5\u03b9\u03b1 \u03c3\u03c4\u03b1\u03b8\u03b5\u03c1\u03ae\u03c2 \u03bf\u03bb\u03af\u03c3\u03b8\u03b7\u03c3\u03b7\u03c2 \u03c3\u03b5 \u03b1\u03c0\u03cc\u03c3\u03c4\u03b1\u03c3\u03b7 130 mm.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-768d61b e-con-full e-flex e-con e-child\" data-id=\"768d61b\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-e43e1f1 elementor-widget__width-inherit elementor-invisible elementor-widget elementor-widget-video\" data-id=\"e43e1f1\" data-element_type=\"widget\" data-settings=\"{&quot;youtube_url&quot;:&quot;https:\\\/\\\/youtu.be\\\/NUgXENOz8J0&quot;,&quot;autoplay&quot;:&quot;yes&quot;,&quot;play_on_mobile&quot;:&quot;yes&quot;,&quot;mute&quot;:&quot;yes&quot;,&quot;loop&quot;:&quot;yes&quot;,&quot;_animation&quot;:&quot;fadeInRight&quot;,&quot;video_type&quot;:&quot;youtube&quot;,&quot;controls&quot;:&quot;yes&quot;}\" data-widget_type=\"video.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-wrapper elementor-open-inline\">\n\t\t\t<div class=\"elementor-video\"><\/div>\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f5aa253 elementor-invisible elementor-widget elementor-widget-image\" data-id=\"f5aa253\" data-element_type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInRight&quot;}\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/www.coefficientfriction.com\/el\/\">\n\t\t\t\t\t\t\t<img decoding=\"async\" width=\"600\" height=\"200\" src=\"https:\/\/www.coefficientfriction.com\/wp-content\/uploads\/2025\/03\/ASTM-D1894-1.webp\" class=\"attachment-large size-large wp-image-77\" alt=\"ASTM D1894\" srcset=\"https:\/\/www.coefficientfriction.com\/wp-content\/uploads\/2025\/03\/ASTM-D1894-1.webp 600w, https:\/\/www.coefficientfriction.com\/wp-content\/uploads\/2025\/03\/ASTM-D1894-1-300x100.webp 300w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-9d958da e-flex e-con-boxed e-con e-parent\" data-id=\"9d958da\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-5055911 elementor-invisible elementor-widget elementor-widget-heading\" data-id=\"5055911\" data-element_type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInUp&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">\u039c\u03ad\u03b8\u03bf\u03b4\u03bf\u03c2 \u03b4\u03bf\u03ba\u03b9\u03bc\u03ae\u03c2 \u03c3\u03c5\u03bd\u03c4\u03b5\u03bb\u03b5\u03c3\u03c4\u03ae \u03c4\u03c1\u03b9\u03b2\u03ae\u03c2 \u03c7\u03b1\u03c1\u03c4\u03b9\u03bf\u03cd - \u03a5\u03c0\u03bf\u03bb\u03bf\u03b3\u03b9\u03c3\u03bc\u03cc\u03c2<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7cac45b elementor-invisible elementor-widget elementor-widget-text-editor\" data-id=\"7cac45b\" data-element_type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInUp&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p class=\"\" data-start=\"2720\" data-end=\"2784\">\u03a4\u03bf ASTM D4917 \u03ba\u03b1\u03b8\u03bf\u03c1\u03af\u03b6\u03b5\u03b9 \u03b1\u03c0\u03bb\u03bf\u03cd\u03c2 \u03c4\u03cd\u03c0\u03bf\u03c5\u03c2 \u03b3\u03b9\u03b1 \u03c4\u03bf\u03bd \u03c5\u03c0\u03bf\u03bb\u03bf\u03b3\u03b9\u03c3\u03bc\u03cc \u03c4\u03c9\u03bd \u03c4\u03b9\u03bc\u03ce\u03bd COF:<\/p><ul data-start=\"2786\" data-end=\"2915\"><li class=\"\" data-start=\"2786\" data-end=\"2852\"><p class=\"\" data-start=\"2788\" data-end=\"2852\"><strong data-start=\"2788\" data-end=\"2807\">\u03a3\u03c4\u03b1\u03c4\u03b9\u03ba\u03ae COF (Us)<\/strong> = \u0394\u03cd\u03bd\u03b1\u03bc\u03b7 \u03ad\u03bd\u03b1\u03c1\u03be\u03b7\u03c2 \u03ba\u03af\u03bd\u03b7\u03c3\u03b7\u03c2 \/ \u03b2\u03ac\u03c1\u03bf\u03c2 \u03ad\u03bb\u03ba\u03b7\u03b8\u03c1\u03bf\u03c5<\/p><\/li><li class=\"\" data-start=\"2853\" data-end=\"2915\"><p class=\"\" data-start=\"2855\" data-end=\"2915\"><strong data-start=\"2855\" data-end=\"2875\">\u039a\u03b9\u03bd\u03b7\u03c4\u03b9\u03ba\u03ae COF (Uk)<\/strong> = \u039c\u03ad\u03c3\u03b7 \u03b4\u03cd\u03bd\u03b1\u03bc\u03b7 \u03bf\u03bb\u03af\u03c3\u03b8\u03b7\u03c3\u03b7\u03c2 \/ \u03b2\u03ac\u03c1\u03bf\u03c2 \u03ad\u03bb\u03ba\u03b7\u03b8\u03c1\u03bf\u03c5<\/p><\/li><\/ul><p class=\"\" data-start=\"2917\" data-end=\"3149\">\u039a\u03ac\u03b8\u03b5 \u03b1\u03c0\u03bf\u03c4\u03ad\u03bb\u03b5\u03c3\u03bc\u03b1 \u03c3\u03c5\u03bd\u03ae\u03b8\u03c9\u03c2 \u03c5\u03c0\u03bf\u03bb\u03bf\u03b3\u03af\u03b6\u03b5\u03c4\u03b1\u03b9 \u03ba\u03b1\u03c4\u03ac \u03bc\u03ad\u03c3\u03bf \u03cc\u03c1\u03bf \u03b3\u03b9\u03b1 \u03c0\u03ad\u03bd\u03c4\u03b5 \u03ad\u03b3\u03ba\u03c5\u03c1\u03b1 \u03b6\u03b5\u03cd\u03b3\u03b7 \u03b4\u03b5\u03b9\u03b3\u03bc\u03ac\u03c4\u03c9\u03bd \u03b3\u03b9\u03b1 \u03c3\u03c4\u03b1\u03c4\u03b9\u03c3\u03c4\u03b9\u03ba\u03ae \u03c3\u03b7\u03bc\u03b1\u03bd\u03c4\u03b9\u03ba\u03cc\u03c4\u03b7\u03c4\u03b1. \u0397 \u03bc\u03ad\u03b8\u03bf\u03b4\u03bf\u03c2 \u03b5\u03be\u03b1\u03c3\u03c6\u03b1\u03bb\u03af\u03b6\u03b5\u03b9 <strong data-start=\"3031\" data-end=\"3065\">\u03b5\u03c0\u03b1\u03bd\u03b1\u03bb\u03b7\u03c8\u03b9\u03bc\u03cc\u03c4\u03b7\u03c4\u03b1 \u03ba\u03b1\u03b9 \u03b9\u03c7\u03bd\u03b7\u03bb\u03b1\u03c3\u03b9\u03bc\u03cc\u03c4\u03b7\u03c4\u03b1<\/strong>, \u03b5\u03c5\u03b8\u03c5\u03b3\u03c1\u03b1\u03bc\u03bc\u03b9\u03b6\u03cc\u03bc\u03b5\u03bd\u03b7 \u03bc\u03b5 \u03c4\u03b1 \u03c0\u03c1\u03cc\u03c4\u03c5\u03c0\u03b1 \u03c4\u03bf\u03c5 \u03ba\u03bb\u03ac\u03b4\u03bf\u03c5 \u03b3\u03b9\u03b1 <strong data-start=\"3104\" data-end=\"3125\">\u03b4\u03b9\u03b1\u03c3\u03c6\u03ac\u03bb\u03b9\u03c3\u03b7 \u03c4\u03b7\u03c2 \u03c0\u03bf\u03b9\u03cc\u03c4\u03b7\u03c4\u03b1\u03c2<\/strong> \u03c3\u03c4\u03b7\u03bd \u03c0\u03b1\u03c1\u03b1\u03b3\u03c9\u03b3\u03ae \u03c7\u03b1\u03c1\u03c4\u03b9\u03bf\u03cd.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-f7a7ced e-flex e-con-boxed e-con e-parent\" data-id=\"f7a7ced\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-2507506 elementor-invisible elementor-widget elementor-widget-heading\" data-id=\"2507506\" data-element_type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInUp&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">\u0395\u03c6\u03b1\u03c1\u03bc\u03bf\u03b3\u03ad\u03c2 <br><small>ASTM D4917 \u0394\u03bf\u03ba\u03b9\u03bc\u03ad\u03c2 \u03c3\u03c4\u03b1\u03c4\u03b9\u03ba\u03ae\u03c2 \u03ba\u03b1\u03b9 \u03ba\u03b9\u03bd\u03b7\u03c4\u03b9\u03ba\u03ae\u03c2 \u03c4\u03c1\u03b9\u03b2\u03ae\u03c2 \u03c7\u03b1\u03c1\u03c4\u03b9\u03bf\u03cd<\/small><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d337fc7 elementor-invisible elementor-widget elementor-widget-text-editor\" data-id=\"d337fc7\" data-element_type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInUp&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p class=\"\" data-start=\"3229\" data-end=\"3390\">\u03a4\u03bf <strong data-start=\"3233\" data-end=\"3260\">\u03b4\u03bf\u03ba\u03b9\u03bc\u03ae \u03c7\u03b1\u03c1\u03c4\u03b9\u03bf\u03cd \u03b5\u03ba\u03c4\u03cd\u03c0\u03c9\u03c3\u03b7\u03c2 COF<\/strong> \u03b5\u03af\u03bd\u03b1\u03b9 \u03b1\u03c0\u03b1\u03c1\u03b1\u03af\u03c4\u03b7\u03c4\u03b7 \u03c3\u03c4\u03b7 \u03b2\u03b9\u03bf\u03bc\u03b7\u03c7\u03b1\u03bd\u03af\u03b1 \u03c7\u03b1\u03c1\u03c4\u03b9\u03bf\u03cd \u03ba\u03b1\u03b9 \u03b5\u03ba\u03c4\u03cd\u03c0\u03c9\u03c3\u03b7\u03c2 \u03b3\u03b9\u03b1 \u03c4\u03b7\u03bd \u03b1\u03be\u03b9\u03bf\u03bb\u03cc\u03b3\u03b7\u03c3\u03b7 <strong data-start=\"3321\" data-end=\"3367\">\u03b9\u03ba\u03b1\u03bd\u03cc\u03c4\u03b7\u03c4\u03b1 \u03c4\u03c1\u03bf\u03c6\u03bf\u03b4\u03bf\u03c3\u03af\u03b1\u03c2, \u03c3\u03c4\u03bf\u03b9\u03b2\u03b1\u03c3\u03b9\u03bc\u03cc\u03c4\u03b7\u03c4\u03b1\u03c2 \u03ba\u03b1\u03b9 \u03bb\u03b5\u03b9\u03c4\u03bf\u03c5\u03c1\u03b3\u03b9\u03ba\u03cc\u03c4\u03b7\u03c4\u03b1\u03c2<\/strong>. \u039f\u03b9 \u03b5\u03c6\u03b1\u03c1\u03bc\u03bf\u03b3\u03ad\u03c2 \u03c0\u03b5\u03c1\u03b9\u03bb\u03b1\u03bc\u03b2\u03ac\u03bd\u03bf\u03c5\u03bd:<\/p><ul data-start=\"3392\" data-end=\"3620\"><li class=\"\" data-start=\"3392\" data-end=\"3459\"><p class=\"\" data-start=\"3394\" data-end=\"3459\"><strong data-start=\"3394\" data-end=\"3424\">\u0394\u03bf\u03ba\u03b9\u03bc\u03ae COF \u03b3\u03b9\u03b1 \u03c7\u03b1\u03c1\u03c4\u03af \u03c7\u03c9\u03c1\u03af\u03c2 \u03b5\u03c0\u03b9\u03ba\u03ac\u03bb\u03c5\u03c8\u03b7<\/strong> \u03b3\u03b9\u03b1 \u03b5\u03ba\u03c4\u03c5\u03c0\u03ce\u03c3\u03b5\u03b9\u03c2 \u03b3\u03c1\u03b1\u03c6\u03b5\u03af\u03bf\u03c5 \u03ba\u03b1\u03b9 \u03b5\u03bc\u03c0\u03bf\u03c1\u03b9\u03ba\u03ad\u03c2 \u03b5\u03ba\u03c4\u03c5\u03c0\u03ce\u03c3\u03b5\u03b9\u03c2<\/p><\/li><li class=\"\" data-start=\"3460\" data-end=\"3541\"><p class=\"\" data-start=\"3462\" data-end=\"3541\">\u0394\u03bf\u03ba\u03b9\u03bc\u03ad\u03c2 \u03c4\u03c1\u03b9\u03b2\u03ae\u03c2 \u03c3\u03b5 <strong data-start=\"3482\" data-end=\"3498\">\u03c7\u03b1\u03c1\u03c4\u03b9\u03ac \u03b5\u03c4\u03b9\u03ba\u03ad\u03c4\u03b1\u03c2<\/strong>, \u03c5\u03bb\u03b9\u03ba\u03ac \u03c3\u03c5\u03c3\u03ba\u03b5\u03c5\u03b1\u03c3\u03af\u03b1\u03c2 \u03ba\u03b1\u03b9 \u03ba\u03c5\u03bc\u03b1\u03c4\u03bf\u03b5\u03b9\u03b4\u03ad\u03c2 \u03c7\u03b1\u03c1\u03c4\u03cc\u03bd\u03b9<\/p><\/li><li class=\"\" data-start=\"3542\" data-end=\"3620\"><p class=\"\" data-start=\"3544\" data-end=\"3620\">\u0391\u03be\u03b9\u03bf\u03bb\u03cc\u03b3\u03b7\u03c3\u03b7 \u03c4\u03b7\u03c2 \u03c3\u03c5\u03bc\u03b2\u03b1\u03c4\u03cc\u03c4\u03b7\u03c4\u03b1\u03c2 \u03c7\u03b1\u03c1\u03c4\u03b9\u03bf\u03cd \u03c3\u03b5 <strong data-start=\"3581\" data-end=\"3620\">\u03c8\u03b7\u03c6\u03b9\u03b1\u03ba\u03ad\u03c2 \u03ba\u03b1\u03b9 offset \u03b5\u03ba\u03c4\u03c5\u03c0\u03c9\u03c4\u03b9\u03ba\u03ad\u03c2 \u03bc\u03b7\u03c7\u03b1\u03bd\u03ad\u03c2<\/strong><\/p><\/li><\/ul><p class=\"\" data-start=\"3622\" data-end=\"3772\">\u039f\u03b9 \u03b1\u03be\u03b9\u03cc\u03c0\u03b9\u03c3\u03c4\u03b5\u03c2 \u03bc\u03b5\u03c4\u03c1\u03ae\u03c3\u03b5\u03b9\u03c2 COF \u03b2\u03bf\u03b7\u03b8\u03bf\u03cd\u03bd \u03c4\u03bf\u03c5\u03c2 \u03ba\u03b1\u03c4\u03b1\u03c3\u03ba\u03b5\u03c5\u03b1\u03c3\u03c4\u03ad\u03c2 <strong data-start=\"3667\" data-end=\"3698\">\u03b2\u03b5\u03bb\u03c4\u03b9\u03c3\u03c4\u03bf\u03c0\u03bf\u03af\u03b7\u03c3\u03b7 \u03c4\u03c9\u03bd \u03b5\u03c0\u03b5\u03be\u03b5\u03c1\u03b3\u03b1\u03c3\u03b9\u03ce\u03bd \u03b5\u03c0\u03b9\u03c6\u03ac\u03bd\u03b5\u03b9\u03b1\u03c2<\/strong>, \u03bc\u03b5\u03af\u03c9\u03c3\u03b7 <strong data-start=\"3707\" data-end=\"3733\">\u03c0\u03bf\u03c3\u03bf\u03c3\u03c4\u03ac \u03b4\u03b9\u03b1\u03ba\u03bf\u03c0\u03ae\u03c2 \u03bb\u03b5\u03b9\u03c4\u03bf\u03c5\u03c1\u03b3\u03af\u03b1\u03c2 \u03c4\u03bf\u03c5 \u03bc\u03b7\u03c7\u03b1\u03bd\u03ae\u03bc\u03b1\u03c4\u03bf\u03c2<\/strong>, \u03ba\u03b1\u03b9 \u03bd\u03b1 \u03b4\u03b9\u03b1\u03c3\u03c6\u03b1\u03bb\u03af\u03c3\u03b5\u03b9 <strong data-start=\"3746\" data-end=\"3771\">\u03b9\u03ba\u03b1\u03bd\u03bf\u03c0\u03bf\u03af\u03b7\u03c3\u03b7 \u03c0\u03b5\u03bb\u03b1\u03c4\u03ce\u03bd<\/strong>.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-2456f1d e-flex e-con-boxed e-con e-parent\" data-id=\"2456f1d\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-4be0d7a elementor-invisible elementor-widget elementor-widget-heading\" data-id=\"4be0d7a\" data-element_type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInUp&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">\u03a0\u03c1\u03bf\u03b7\u03b3\u03bc\u03ad\u03bd\u03b5\u03c2 \u03bb\u03cd\u03c3\u03b5\u03b9\u03c2 \u03b3\u03b9\u03b1 \u03b4\u03bf\u03ba\u03b9\u03bc\u03ad\u03c2 \u03c4\u03c1\u03b9\u03b2\u03ae\u03c2 \u03c7\u03b1\u03c1\u03c4\u03b9\u03bf\u03cd<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-0424cfa e-con-full e-grid e-con e-child\" data-id=\"0424cfa\" data-element_type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-3a3fc5c e-con-full e-flex e-con e-child\" data-id=\"3a3fc5c\" data-element_type=\"container\" data-settings=\"{&quot;animation&quot;:&quot;none&quot;}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-9e1f2e3 elementor-invisible elementor-widget elementor-widget-image\" data-id=\"9e1f2e3\" data-element_type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInLeft&quot;}\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/www.coefficientfriction.com\/el\/\">\n\t\t\t\t\t\t\t<img decoding=\"async\" width=\"600\" height=\"600\" src=\"https:\/\/www.coefficientfriction.com\/wp-content\/uploads\/2025\/03\/coefficient-of-friction-testing-equipment-01.webp\" class=\"attachment-medium_large size-medium_large wp-image-96\" alt=\"\u03b5\u03be\u03bf\u03c0\u03bb\u03b9\u03c3\u03bc\u03cc\u03c2 \u03b4\u03bf\u03ba\u03b9\u03bc\u03ae\u03c2 \u03c3\u03c5\u03bd\u03c4\u03b5\u03bb\u03b5\u03c3\u03c4\u03ae \u03c4\u03c1\u03b9\u03b2\u03ae\u03c2 01\" srcset=\"https:\/\/www.coefficientfriction.com\/wp-content\/uploads\/2025\/03\/coefficient-of-friction-testing-equipment-01.webp 600w, https:\/\/www.coefficientfriction.com\/wp-content\/uploads\/2025\/03\/coefficient-of-friction-testing-equipment-01-300x300.webp 300w, https:\/\/www.coefficientfriction.com\/wp-content\/uploads\/2025\/03\/coefficient-of-friction-testing-equipment-01-150x150.webp 150w, https:\/\/www.coefficientfriction.com\/wp-content\/uploads\/2025\/03\/elementor\/thumbs\/coefficient-of-friction-testing-equipment-01-r3gmfg1nnljvgm1sgd9e374sfjg8cayrot70czv2xs.webp 400w, https:\/\/www.coefficientfriction.com\/wp-content\/uploads\/2025\/03\/elementor\/thumbs\/coefficient-of-friction-testing-equipment-01-r3gmfg1ovgcb2m7iva4k79z5gvnv026hkls6iecayw.webp 500w, https:\/\/www.coefficientfriction.com\/wp-content\/uploads\/2025\/03\/elementor\/thumbs\/coefficient-of-friction-testing-equipment-01-r3gmfg1nwdb5s7ojc5fmiewgn0ak2nlwv641l9yiy0.webp 420w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-a290580 e-con-full e-flex e-con e-child\" data-id=\"a290580\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-41e1fbd elementor-invisible elementor-widget elementor-widget-text-editor\" data-id=\"41e1fbd\" data-element_type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInRight&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p class=\"\" data-start=\"3779\" data-end=\"3850\"><strong data-start=\"3779\" data-end=\"3850\">\u03a0\u03c1\u03bf\u03b7\u03b3\u03bc\u03ad\u03bd\u03b5\u03c2 \u03bb\u03cd\u03c3\u03b5\u03b9\u03c2 \u03b3\u03b9\u03b1 \u03b4\u03bf\u03ba\u03b9\u03bc\u03ad\u03c2 \u03c4\u03c1\u03b9\u03b2\u03ae\u03c2: Cell Instruments<\/strong><\/p><p class=\"\" data-start=\"3852\" data-end=\"4123\">\u0393\u03b9\u03b1 \u03c4\u03b7\u03bd \u03b1\u03c0\u03bb\u03bf\u03cd\u03c3\u03c4\u03b5\u03c5\u03c3\u03b7 \u03c4\u03b7\u03c2 ASTM <a href=\"https:\/\/www.astm.org\/d4917-97r07.html\" target=\"_blank\" rel=\"noopener nofollow\">D4917<\/a> \u03c3\u03c5\u03bc\u03bc\u03cc\u03c1\u03c6\u03c9\u03c3\u03b7, <strong data-start=\"3887\" data-end=\"3907\">Cell Instruments<\/strong> \u03c0\u03c1\u03bf\u03c3\u03c6\u03ad\u03c1\u03b5\u03b9 \u03c4\u03bf <a href=\"https:\/\/www.coefficientfriction.com\/el\/\"><strong data-start=\"3919\" data-end=\"3960\">COF-01 \u0394\u03bf\u03ba\u03b9\u03bc\u03b1\u03c3\u03c4\u03ae\u03c2 \u03c3\u03c5\u03bd\u03c4\u03b5\u03bb\u03b5\u03c3\u03c4\u03ae \u03c4\u03c1\u03b9\u03b2\u03ae\u03c2 COF-01<\/strong><\/a>, \u03c3\u03c7\u03b5\u03b4\u03b9\u03b1\u03c3\u03bc\u03ad\u03bd\u03bf \u03b3\u03b9\u03b1 \u03b1\u03ba\u03c1\u03af\u03b2\u03b5\u03b9\u03b1 \u03ba\u03b1\u03b9 \u03b5\u03c5\u03ba\u03bf\u03bb\u03af\u03b1 \u03c3\u03c4\u03b7 \u03c7\u03c1\u03ae\u03c3\u03b7. \u03a4\u03bf COF-01 \u03c5\u03c0\u03bf\u03c3\u03c4\u03b7\u03c1\u03af\u03b6\u03b5\u03b9 <strong data-start=\"4029\" data-end=\"4063\">\u03c3\u03c4\u03b1\u03c4\u03b9\u03ba\u03ad\u03c2 \u03ba\u03b1\u03b9 \u03ba\u03b9\u03bd\u03b7\u03c4\u03b9\u03ba\u03ad\u03c2 \u03b4\u03bf\u03ba\u03b9\u03bc\u03ad\u03c2 COF<\/strong> \u03c3\u03cd\u03bc\u03c6\u03c9\u03bd\u03b1 \u03bc\u03b5 \u03c4\u03bf \u03c0\u03c1\u03cc\u03c4\u03c5\u03c0\u03bf ASTM D4917 \u03ba\u03b1\u03b9 \u03ac\u03bb\u03bb\u03b1 \u03c3\u03c7\u03b5\u03c4\u03b9\u03ba\u03ac \u03c0\u03c1\u03cc\u03c4\u03c5\u03c0\u03b1.<\/p><p class=\"\" data-start=\"4125\" data-end=\"4162\"><strong data-start=\"4125\" data-end=\"4162\">\u03a4\u03b1 \u03b2\u03b1\u03c3\u03b9\u03ba\u03ac \u03c0\u03bb\u03b5\u03bf\u03bd\u03b5\u03ba\u03c4\u03ae\u03bc\u03b1\u03c4\u03b1 \u03c4\u03bf\u03c5 COF-01 \u03c0\u03b5\u03c1\u03b9\u03bb\u03b1\u03bc\u03b2\u03ac\u03bd\u03bf\u03c5\u03bd:<\/strong><\/p><ul data-start=\"4164\" data-end=\"4493\"><li class=\"\" data-start=\"4164\" data-end=\"4212\"><p class=\"\" data-start=\"4166\" data-end=\"4212\">\u03a0\u03bb\u03ae\u03c1\u03c9\u03c2 \u03b1\u03c5\u03c4\u03bf\u03bc\u03b1\u03c4\u03bf\u03c0\u03bf\u03b9\u03b7\u03bc\u03ad\u03bd\u03b7 \u03b1\u03bd\u03af\u03c7\u03bd\u03b5\u03c5\u03c3\u03b7 \u03ba\u03af\u03bd\u03b7\u03c3\u03b7\u03c2 \u03ba\u03b1\u03b9 \u03b4\u03cd\u03bd\u03b1\u03bc\u03b7\u03c2<\/p><\/li><li class=\"\" data-start=\"4213\" data-end=\"4271\"><p class=\"\" data-start=\"4215\" data-end=\"4271\">\u039a\u03cd\u03c4\u03c4\u03b1\u03c1\u03bf \u03c6\u03bf\u03c1\u03c4\u03af\u03bf\u03c5 \u03c5\u03c8\u03b7\u03bb\u03ae\u03c2 \u03b1\u03ba\u03c1\u03af\u03b2\u03b5\u03b9\u03b1\u03c2 \u03ba\u03b1\u03b9 \u03c8\u03b7\u03c6\u03b9\u03b1\u03ba\u03ae \u03bf\u03b8\u03cc\u03bd\u03b7 \u03c3\u03b5 \u03c0\u03c1\u03b1\u03b3\u03bc\u03b1\u03c4\u03b9\u03ba\u03cc \u03c7\u03c1\u03cc\u03bd\u03bf<\/p><\/li><li class=\"\" data-start=\"4272\" data-end=\"4366\"><p class=\"\" data-start=\"4274\" data-end=\"4366\">\u039a\u03b1\u03c4\u03ac\u03bb\u03bb\u03b7\u03bb\u03bf \u03b3\u03b9\u03b1 <strong data-start=\"4287\" data-end=\"4314\">\u03b4\u03bf\u03ba\u03b9\u03bc\u03ae \u03c7\u03b1\u03c1\u03c4\u03b9\u03bf\u03cd \u03b5\u03ba\u03c4\u03cd\u03c0\u03c9\u03c3\u03b7\u03c2 COF<\/strong>, <strong data-start=\"4316\" data-end=\"4343\">\u03b4\u03bf\u03ba\u03b9\u03bc\u03ae COF \u03b3\u03b9\u03b1 \u03c7\u03b1\u03c1\u03c4\u03af \u03c7\u03c9\u03c1\u03af\u03c2 \u03b5\u03c0\u03b9\u03ba\u03ac\u03bb\u03c5\u03c8\u03b7<\/strong>, \u03ba\u03b1\u03b9 \u03ac\u03bb\u03bb\u03b1 \u03c5\u03bb\u03b9\u03ba\u03ac<\/p><\/li><li class=\"\" data-start=\"4367\" data-end=\"4422\"><p class=\"\" data-start=\"4369\" data-end=\"4422\">\u03a6\u03b9\u03bb\u03b9\u03ba\u03ae \u03c0\u03c1\u03bf\u03c2 \u03c4\u03bf \u03c7\u03c1\u03ae\u03c3\u03c4\u03b7 \u03b4\u03b9\u03b5\u03c0\u03b1\u03c6\u03ae \u03bc\u03b5 \u03c0\u03bf\u03bb\u03c5\u03b3\u03bb\u03c9\u03c3\u03c3\u03b9\u03ba\u03ae \u03c5\u03c0\u03bf\u03c3\u03c4\u03ae\u03c1\u03b9\u03be\u03b7<\/p><\/li><li class=\"\" data-start=\"4423\" data-end=\"4493\"><p class=\"\" data-start=\"4425\" data-end=\"4493\">\u03a3\u03c5\u03bc\u03b2\u03b1\u03c4\u03cc \u03bc\u03b5 <strong data-start=\"4441\" data-end=\"4483\">\u03b1\u03c0\u03cc\u03ba\u03c4\u03b7\u03c3\u03b7 \u03b4\u03b5\u03b4\u03bf\u03bc\u03ad\u03bd\u03c9\u03bd \u03ba\u03b1\u03b9 \u03b4\u03b7\u03bc\u03b9\u03bf\u03c5\u03c1\u03b3\u03af\u03b1 \u03b1\u03bd\u03b1\u03c6\u03bf\u03c1\u03ce\u03bd<\/strong> \u03c3\u03c5\u03c3\u03c4\u03ae\u03bc\u03b1\u03c4\u03b1<\/p><\/li><\/ul><p class=\"\" data-start=\"4495\" data-end=\"4660\">\u0393\u03b9\u03b1 \u03c4\u03bf \u03c0\u03c1\u03bf\u03c3\u03c9\u03c0\u03b9\u03ba\u03cc \u03c0\u03bf\u03b9\u03bf\u03c4\u03b9\u03ba\u03bf\u03cd \u03b5\u03bb\u03ad\u03b3\u03c7\u03bf\u03c5 \u03ba\u03b1\u03b9 \u03c4\u03bf\u03c5\u03c2 \u03c4\u03b5\u03c7\u03bd\u03b9\u03ba\u03bf\u03cd\u03c2 \u03b5\u03c1\u03b3\u03b1\u03c3\u03c4\u03b7\u03c1\u03af\u03c9\u03bd, \u03c4\u03bf COF-01 \u03b5\u03be\u03b1\u03c3\u03c6\u03b1\u03bb\u03af\u03b6\u03b5\u03b9 <strong data-start=\"4561\" data-end=\"4603\">\u03b3\u03c1\u03ae\u03b3\u03bf\u03c1\u03b5\u03c2, \u03b1\u03ba\u03c1\u03b9\u03b2\u03b5\u03af\u03c2 \u03ba\u03b1\u03b9 \u03b5\u03c0\u03b1\u03bd\u03b1\u03bb\u03b1\u03bc\u03b2\u03b1\u03bd\u03cc\u03bc\u03b5\u03bd\u03b5\u03c2 \u03b4\u03bf\u03ba\u03b9\u03bc\u03ad\u03c2<\/strong>, \u03b2\u03bf\u03b7\u03b8\u03ce\u03bd\u03c4\u03b1\u03c2 \u03c4\u03bf\u03c5\u03c2 \u03c0\u03b1\u03c1\u03b1\u03b3\u03c9\u03b3\u03bf\u03cd\u03c2 \u03c7\u03b1\u03c1\u03c4\u03b9\u03bf\u03cd \u03bd\u03b1 \u03c0\u03b1\u03c1\u03b1\u03bc\u03b5\u03af\u03bd\u03bf\u03c5\u03bd \u03c3\u03c5\u03bc\u03b2\u03b1\u03c4\u03bf\u03af \u03ba\u03b1\u03b9 \u03b1\u03bd\u03c4\u03b1\u03b3\u03c9\u03bd\u03b9\u03c3\u03c4\u03b9\u03ba\u03bf\u03af.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-6d2c64c e-flex e-con-boxed e-con e-parent\" data-id=\"6d2c64c\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-c394047 elementor-invisible elementor-widget elementor-widget-heading\" data-id=\"c394047\" data-element_type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInUp&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">\u03a3\u03c5\u03c7\u03bd\u03ad\u03c2 \u03b5\u03c1\u03c9\u03c4\u03ae\u03c3\u03b5\u03b9\u03c2<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b484e06 elementor-invisible elementor-widget elementor-widget-n-accordion\" data-id=\"b484e06\" data-element_type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInUp&quot;,&quot;max_items_expended&quot;:&quot;multiple&quot;,&quot;default_state&quot;:&quot;expanded&quot;,&quot;n_accordion_animation_duration&quot;:{&quot;unit&quot;:&quot;ms&quot;,&quot;size&quot;:400,&quot;sizes&quot;:[]}}\" data-widget_type=\"nested-accordion.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"e-n-accordion\" aria-label=\"\u0391\u03ba\u03bf\u03c1\u03bd\u03c4\u03b5\u03cc\u03bd. \u0391\u03bd\u03bf\u03af\u03be\u03c4\u03b5 \u03c3\u03c5\u03bd\u03b4\u03ad\u03c3\u03bc\u03bf\u03c5\u03c2 \u03bc\u03b5 \u03c4\u03bf Enter \u03ae \u03c4\u03bf Space, \u03ba\u03bb\u03b5\u03af\u03c3\u03c4\u03b5 \u03bc\u03b5 \u03c4\u03bf Escape \u03ba\u03b1\u03b9 \u03c0\u03bb\u03bf\u03b7\u03b3\u03b7\u03b8\u03b5\u03af\u03c4\u03b5 \u03bc\u03b5 \u03c4\u03b1 \u03c0\u03bb\u03ae\u03ba\u03c4\u03c1\u03b1 \u03b2\u03ad\u03bb\u03bf\u03c5\u03c2.\">\n\t\t\t\t\t\t<details id=\"e-n-accordion-item-1890\" class=\"e-n-accordion-item\" open>\n\t\t\t\t<summary class=\"e-n-accordion-item-title\" data-accordion-index=\"1\" tabindex=\"0\" aria-expanded=\"true\" aria-controls=\"e-n-accordion-item-1890\" >\n\t\t\t\t\t<span class='e-n-accordion-item-title-header'><div class=\"e-n-accordion-item-title-text\"> 1. \u03a0\u03bf\u03b9\u03bf\u03c2 \u03b5\u03af\u03bd\u03b1\u03b9 \u03bf \u03c3\u03ba\u03bf\u03c0\u03cc\u03c2 \u03c4\u03bf\u03c5 \u03c0\u03c1\u03bf\u03c4\u03cd\u03c0\u03bf\u03c5 ASTM D4917; <\/div><\/span>\n\t\t\t\t\t\t\t<span class='e-n-accordion-item-title-icon'>\n\t\t\t<span class='e-opened' ><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-minus\" viewbox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h384c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t\t<span class='e-closed'><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-plus\" viewbox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H272V64c0-17.67-14.33-32-32-32h-32c-17.67 0-32 14.33-32 32v144H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h144v144c0 17.67 14.33 32 32 32h32c17.67 0 32-14.33 32-32V304h144c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-1890\" class=\"elementor-element elementor-element-4dda86b e-con-full e-flex e-con e-child\" data-id=\"4dda86b\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-b1ee56f elementor-widget elementor-widget-text-editor\" data-id=\"b1ee56f\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p class=\"\" data-start=\"5774\" data-end=\"6068\">\u03a4\u03bf \u03c0\u03c1\u03cc\u03c4\u03c5\u03c0\u03bf ASTM D4917 \u03c4\u03c5\u03c0\u03bf\u03c0\u03bf\u03b9\u03b5\u03af \u03c4\u03b7 \u03b4\u03b9\u03b1\u03b4\u03b9\u03ba\u03b1\u03c3\u03af\u03b1 \u03bc\u03ad\u03c4\u03c1\u03b7\u03c3\u03b7\u03c2 \u03c4\u03bf\u03c5 \u03c3\u03c4\u03b1\u03c4\u03b9\u03ba\u03bf\u03cd \u03ba\u03b1\u03b9 \u03ba\u03b9\u03bd\u03b7\u03c4\u03b9\u03ba\u03bf\u03cd \u03c3\u03c5\u03bd\u03c4\u03b5\u03bb\u03b5\u03c3\u03c4\u03ae \u03c4\u03c1\u03b9\u03b2\u03ae\u03c2 \u03c4\u03bf\u03c5 \u03c7\u03b1\u03c1\u03c4\u03b9\u03bf\u03cd, \u03b9\u03b4\u03af\u03c9\u03c2 \u03c4\u03bf\u03c5 \u03bc\u03b7 \u03b5\u03c0\u03b9\u03ba\u03b1\u03bb\u03c5\u03bc\u03bc\u03ad\u03bd\u03bf\u03c5 \u03c7\u03b1\u03c1\u03c4\u03b9\u03bf\u03cd \u03b5\u03ba\u03c4\u03cd\u03c0\u03c9\u03c3\u03b7\u03c2 \u03ba\u03b1\u03b9 \u03b3\u03c1\u03b1\u03c6\u03ae\u03c2, \u03ce\u03c3\u03c4\u03b5 \u03bd\u03b1 \u03b5\u03be\u03b1\u03c3\u03c6\u03b1\u03bb\u03af\u03b6\u03b5\u03c4\u03b1\u03b9 \u03c3\u03c4\u03b1\u03b8\u03b5\u03c1\u03ae \u03b1\u03c0\u03cc\u03b4\u03bf\u03c3\u03b7 \u03c3\u03b5 \u03b5\u03c6\u03b1\u03c1\u03bc\u03bf\u03b3\u03ad\u03c2 \u03cc\u03c0\u03c9\u03c2 \u03b7 \u03b5\u03ba\u03c4\u03cd\u03c0\u03c9\u03c3\u03b7 \u03ba\u03b1\u03b9 \u03b7 \u03c3\u03c5\u03c3\u03ba\u03b5\u03c5\u03b1\u03c3\u03af\u03b1.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t<details id=\"e-n-accordion-item-1891\" class=\"e-n-accordion-item\" >\n\t\t\t\t<summary class=\"e-n-accordion-item-title\" data-accordion-index=\"2\" tabindex=\"-1\" aria-expanded=\"false\" aria-controls=\"e-n-accordion-item-1891\" >\n\t\t\t\t\t<span class='e-n-accordion-item-title-header'><div class=\"e-n-accordion-item-title-text\"> 2. \u03a0\u03ce\u03c2 \u03b7 \u03bc\u03ad\u03b8\u03bf\u03b4\u03bf\u03c2 \u03b4\u03bf\u03ba\u03b9\u03bc\u03ae\u03c2 \u03c0\u03c1\u03bf\u03c3\u03bf\u03bc\u03bf\u03b9\u03ce\u03bd\u03b5\u03b9 \u03c4\u03b7 \u03c3\u03c5\u03bc\u03c0\u03b5\u03c1\u03b9\u03c6\u03bf\u03c1\u03ac \u03c4\u03bf\u03c5 \u03c7\u03b1\u03c1\u03c4\u03b9\u03bf\u03cd \u03c3\u03c4\u03bf\u03bd \u03c0\u03c1\u03b1\u03b3\u03bc\u03b1\u03c4\u03b9\u03ba\u03cc \u03ba\u03cc\u03c3\u03bc\u03bf; <\/div><\/span>\n\t\t\t\t\t\t\t<span class='e-n-accordion-item-title-icon'>\n\t\t\t<span class='e-opened' ><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-minus\" viewbox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h384c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t\t<span class='e-closed'><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-plus\" viewbox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H272V64c0-17.67-14.33-32-32-32h-32c-17.67 0-32 14.33-32 32v144H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h144v144c0 17.67 14.33 32 32 32h32c17.67 0 32-14.33 32-32V304h144c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-1891\" class=\"elementor-element elementor-element-4213cd7 e-con-full e-flex e-con e-child\" data-id=\"4213cd7\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-a5cb0ea elementor-widget elementor-widget-text-editor\" data-id=\"a5cb0ea\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p class=\"\" data-start=\"6070\" data-end=\"6333\">\u0397 \u03bc\u03ad\u03b8\u03bf\u03b4\u03bf\u03c2 \u03c4\u03bf\u03c5 \u03bf\u03c1\u03b9\u03b6\u03cc\u03bd\u03c4\u03b9\u03bf\u03c5 \u03b5\u03c0\u03b9\u03c0\u03ad\u03b4\u03bf\u03c5 \u03bc\u03b9\u03bc\u03b5\u03af\u03c4\u03b1\u03b9 \u03c4\u03b7\u03bd \u03bf\u03bb\u03af\u03c3\u03b8\u03b7\u03c3\u03b7 \u03c4\u03c9\u03bd \u03c6\u03cd\u03bb\u03bb\u03c9\u03bd \u03c7\u03b1\u03c1\u03c4\u03b9\u03bf\u03cd \u03ba\u03b1\u03c4\u03ac \u03c4\u03b7\u03bd \u03c4\u03c1\u03bf\u03c6\u03bf\u03b4\u03bf\u03c3\u03af\u03b1 \u03ba\u03b1\u03b9 \u03c4\u03b7 \u03c3\u03c4\u03bf\u03af\u03b2\u03b1\u03be\u03b7 \u03c4\u03bf\u03c5 \u03bc\u03b7\u03c7\u03b1\u03bd\u03ae\u03bc\u03b1\u03c4\u03bf\u03c2, \u03b3\u03b5\u03b3\u03bf\u03bd\u03cc\u03c2 \u03c0\u03bf\u03c5 \u03c4\u03b7\u03bd \u03ba\u03b1\u03b8\u03b9\u03c3\u03c4\u03ac \u03b9\u03b4\u03b9\u03b1\u03af\u03c4\u03b5\u03c1\u03b1 \u03c3\u03b7\u03bc\u03b1\u03bd\u03c4\u03b9\u03ba\u03ae \u03b3\u03b9\u03b1 \u03c4\u03b7\u03bd \u03b1\u03be\u03b9\u03bf\u03bb\u03cc\u03b3\u03b7\u03c3\u03b7 \u03c4\u03c9\u03bd \u03b9\u03b4\u03b9\u03bf\u03c4\u03ae\u03c4\u03c9\u03bd \u03c4\u03c1\u03b9\u03b2\u03ae\u03c2 \u03c0\u03bf\u03c5 \u03b5\u03c0\u03b7\u03c1\u03b5\u03ac\u03b6\u03bf\u03c5\u03bd \u03c4\u03b1 \u03c3\u03b5\u03bd\u03ac\u03c1\u03b9\u03b1 \u03c0\u03c1\u03b1\u03b3\u03bc\u03b1\u03c4\u03b9\u03ba\u03ae\u03c2 \u03c7\u03c1\u03ae\u03c3\u03b7\u03c2.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t<details id=\"e-n-accordion-item-1892\" class=\"e-n-accordion-item\" >\n\t\t\t\t<summary class=\"e-n-accordion-item-title\" data-accordion-index=\"3\" tabindex=\"-1\" aria-expanded=\"false\" aria-controls=\"e-n-accordion-item-1892\" >\n\t\t\t\t\t<span class='e-n-accordion-item-title-header'><div class=\"e-n-accordion-item-title-text\"> 3. \u039c\u03c0\u03bf\u03c1\u03b5\u03af \u03c4\u03bf ASTM D4917 \u03bd\u03b1 \u03c7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03b9\u03b7\u03b8\u03b5\u03af \u03b3\u03b9\u03b1 \u03c7\u03b1\u03c1\u03c4\u03b9\u03ac \u03bc\u03b5 \u03b5\u03c0\u03b9\u03ba\u03ac\u03bb\u03c5\u03c8\u03b7 \u03ae \u03b5\u03b9\u03b4\u03b9\u03ba\u03ac \u03c7\u03b1\u03c1\u03c4\u03b9\u03ac; <\/div><\/span>\n\t\t\t\t\t\t\t<span class='e-n-accordion-item-title-icon'>\n\t\t\t<span class='e-opened' ><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-minus\" viewbox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h384c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t\t<span class='e-closed'><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-plus\" viewbox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H272V64c0-17.67-14.33-32-32-32h-32c-17.67 0-32 14.33-32 32v144H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h144v144c0 17.67 14.33 32 32 32h32c17.67 0 32-14.33 32-32V304h144c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-1892\" class=\"elementor-element elementor-element-8cbaf70 e-con-full e-flex e-con e-child\" data-id=\"8cbaf70\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-ed707d2 elementor-widget elementor-widget-text-editor\" data-id=\"ed707d2\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p class=\"\" data-start=\"6335\" data-end=\"6581\">\u0391\u03bd \u03ba\u03b1\u03b9 \u03ad\u03c7\u03b5\u03b9 \u03c3\u03c7\u03b5\u03b4\u03b9\u03b1\u03c3\u03c4\u03b5\u03af \u03b3\u03b9\u03b1 \u03c7\u03b1\u03c1\u03c4\u03b9\u03ac \u03c7\u03c9\u03c1\u03af\u03c2 \u03b5\u03c0\u03b9\u03ba\u03ac\u03bb\u03c5\u03c8\u03b7, \u03c4\u03bf ASTM D4917 \u03bc\u03c0\u03bf\u03c1\u03b5\u03af \u03bd\u03b1 \u03b5\u03c6\u03b1\u03c1\u03bc\u03bf\u03c3\u03c4\u03b5\u03af \u03c3\u03b5 \u03ac\u03bb\u03bb\u03bf\u03c5\u03c2 \u03c4\u03cd\u03c0\u03bf\u03c5\u03c2, \u03bc\u03b5 \u03c4\u03b7\u03bd \u03c0\u03c1\u03bf\u03cb\u03c0\u03cc\u03b8\u03b5\u03c3\u03b7 \u03cc\u03c4\u03b9 \u03c4\u03b1 \u03b1\u03c0\u03bf\u03c4\u03b5\u03bb\u03ad\u03c3\u03bc\u03b1\u03c4\u03b1 \u03bc\u03c0\u03bf\u03c1\u03b5\u03af \u03bd\u03b1 \u03b4\u03b9\u03b1\u03c6\u03ad\u03c1\u03bf\u03c5\u03bd \u03c3\u03b5 \u03b1\u03ba\u03c1\u03af\u03b2\u03b5\u03b9\u03b1 \u03bb\u03cc\u03b3\u03c9 \u03c4\u03c9\u03bd \u03b4\u03b9\u03b1\u03c6\u03bf\u03c1\u03ce\u03bd \u03c3\u03c4\u03b9\u03c2 \u03b5\u03c0\u03b9\u03c6\u03b1\u03bd\u03b5\u03b9\u03b1\u03ba\u03ad\u03c2 \u03b9\u03b4\u03b9\u03cc\u03c4\u03b7\u03c4\u03b5\u03c2.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t<details id=\"e-n-accordion-item-1893\" class=\"e-n-accordion-item\" >\n\t\t\t\t<summary class=\"e-n-accordion-item-title\" data-accordion-index=\"4\" tabindex=\"-1\" aria-expanded=\"false\" aria-controls=\"e-n-accordion-item-1893\" >\n\t\t\t\t\t<span class='e-n-accordion-item-title-header'><div class=\"e-n-accordion-item-title-text\"> 4. \u03a0\u03bf\u03b9\u03b1 \u03b5\u03af\u03bd\u03b1\u03b9 \u03b7 \u03b4\u03b9\u03b1\u03c6\u03bf\u03c1\u03ac \u03bc\u03b5\u03c4\u03b1\u03be\u03cd \u03c4\u03bf\u03c5 \u03c3\u03c4\u03b1\u03c4\u03b9\u03ba\u03bf\u03cd \u03ba\u03b1\u03b9 \u03c4\u03bf\u03c5 \u03ba\u03b9\u03bd\u03b7\u03c4\u03b9\u03ba\u03bf\u03cd COF \u03c3\u03c4\u03b9\u03c2 \u03b4\u03bf\u03ba\u03b9\u03bc\u03ad\u03c2 \u03c7\u03b1\u03c1\u03c4\u03b9\u03bf\u03cd; <\/div><\/span>\n\t\t\t\t\t\t\t<span class='e-n-accordion-item-title-icon'>\n\t\t\t<span class='e-opened' ><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-minus\" viewbox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h384c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t\t<span class='e-closed'><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-plus\" viewbox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H272V64c0-17.67-14.33-32-32-32h-32c-17.67 0-32 14.33-32 32v144H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h144v144c0 17.67 14.33 32 32 32h32c17.67 0 32-14.33 32-32V304h144c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-1893\" class=\"elementor-element elementor-element-afe3920 e-flex e-con-boxed e-con e-child\" data-id=\"afe3920\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-932ab24 elementor-widget elementor-widget-text-editor\" data-id=\"932ab24\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p class=\"\" data-start=\"6583\" data-end=\"6846\">\u0397 \u03c3\u03c4\u03b1\u03c4\u03b9\u03ba\u03ae COF \u03bc\u03b5\u03c4\u03c1\u03ac \u03c4\u03b7\u03bd \u03b1\u03bd\u03c4\u03af\u03c3\u03c4\u03b1\u03c3\u03b7 \u03ba\u03b1\u03c4\u03ac \u03c4\u03b7\u03bd \u03ad\u03bd\u03b1\u03c1\u03be\u03b7 \u03c4\u03b7\u03c2 \u03ba\u03af\u03bd\u03b7\u03c3\u03b7\u03c2, \u03b5\u03bd\u03ce \u03b7 \u03ba\u03b9\u03bd\u03b7\u03c4\u03b9\u03ba\u03ae COF \u03bc\u03b5\u03c4\u03c1\u03ac \u03c4\u03b7\u03bd \u03b1\u03bd\u03c4\u03af\u03c3\u03c4\u03b1\u03c3\u03b7 \u03ba\u03b1\u03c4\u03ac \u03c4\u03b7 \u03b4\u03b9\u03ac\u03c1\u03ba\u03b5\u03b9\u03b1 \u03c4\u03b7\u03c2 \u03c3\u03c5\u03bd\u03b5\u03c7\u03b9\u03b6\u03cc\u03bc\u03b5\u03bd\u03b7\u03c2 \u03ba\u03af\u03bd\u03b7\u03c3\u03b7\u03c2. \u039a\u03b1\u03b9 \u03bf\u03b9 \u03b4\u03cd\u03bf \u03b5\u03af\u03bd\u03b1\u03b9 \u03b1\u03c0\u03b1\u03c1\u03b1\u03af\u03c4\u03b7\u03c4\u03b5\u03c2 \u03b3\u03b9\u03b1 \u03c4\u03b7\u03bd \u03ba\u03b1\u03c4\u03b1\u03bd\u03cc\u03b7\u03c3\u03b7 \u03c4\u03b7\u03c2 \u03c3\u03c5\u03bc\u03c0\u03b5\u03c1\u03b9\u03c6\u03bf\u03c1\u03ac\u03c2 \u03c7\u03b5\u03b9\u03c1\u03b9\u03c3\u03bc\u03bf\u03cd \u03c7\u03b1\u03c1\u03c4\u03b9\u03bf\u03cd.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t<details id=\"e-n-accordion-item-1894\" class=\"e-n-accordion-item\" >\n\t\t\t\t<summary class=\"e-n-accordion-item-title\" data-accordion-index=\"5\" tabindex=\"-1\" aria-expanded=\"false\" aria-controls=\"e-n-accordion-item-1894\" >\n\t\t\t\t\t<span class='e-n-accordion-item-title-header'><div class=\"e-n-accordion-item-title-text\"> 5. \u0394\u03b9\u03b1\u03c6\u03bf\u03c1\u03ac \u03bc\u03b5\u03c4\u03b1\u03be\u03cd ASTM D4197 \u03ba\u03b1\u03b9 ASTM D4198 <\/div><\/span>\n\t\t\t\t\t\t\t<span class='e-n-accordion-item-title-icon'>\n\t\t\t<span class='e-opened' ><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-minus\" viewbox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h384c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t\t<span class='e-closed'><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-plus\" viewbox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H272V64c0-17.67-14.33-32-32-32h-32c-17.67 0-32 14.33-32 32v144H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h144v144c0 17.67 14.33 32 32 32h32c17.67 0 32-14.33 32-32V304h144c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-1894\" class=\"elementor-element elementor-element-f438e49 e-flex e-con-boxed e-con e-child\" data-id=\"f438e49\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-ae2370c elementor-widget elementor-widget-text-editor\" data-id=\"ae2370c\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p class=\"\" data-start=\"4711\" data-end=\"5075\">\u03a3\u03b5 \u03b1\u03bd\u03c4\u03af\u03b8\u03b5\u03c3\u03b7 \u03bc\u03b5 \u03b5\u03bd\u03b1\u03bb\u03bb\u03b1\u03ba\u03c4\u03b9\u03ba\u03ad\u03c2 \u03bc\u03b5\u03b8\u03cc\u03b4\u03bf\u03c5\u03c2 \u03cc\u03c0\u03c9\u03c2 <strong data-start=\"4743\" data-end=\"4781\">ASTM D4918 (\u03bc\u03ad\u03b8\u03bf\u03b4\u03bf\u03c2 \u03ba\u03b5\u03ba\u03bb\u03b9\u03bc\u03ad\u03bd\u03bf\u03c5 \u03b5\u03c0\u03b9\u03c0\u03ad\u03b4\u03bf\u03c5)<\/strong>, \u03a4\u03bf ASTM D4917 \u03c0\u03c1\u03bf\u03b2\u03bb\u03ad\u03c0\u03b5\u03b9 <strong data-start=\"4803\" data-end=\"4832\">\u03c0\u03bf\u03c3\u03bf\u03c4\u03b9\u03ba\u03ad\u03c2 \u03bc\u03b5\u03c4\u03c1\u03ae\u03c3\u03b5\u03b9\u03c2<\/strong> \u03c4\u03cc\u03c3\u03bf \u03c4\u03b7\u03c2 \u03c3\u03c4\u03b1\u03c4\u03b9\u03ba\u03ae\u03c2 \u03cc\u03c3\u03bf \u03ba\u03b1\u03b9 \u03c4\u03b7\u03c2 \u03ba\u03b9\u03bd\u03b7\u03c4\u03b9\u03ba\u03ae\u03c2 \u03c4\u03c1\u03b9\u03b2\u03ae\u03c2, \u03bf\u03b9 \u03bf\u03c0\u03bf\u03af\u03b5\u03c2 \u03b5\u03af\u03bd\u03b1\u03b9 \u03b1\u03c0\u03b1\u03c1\u03b1\u03af\u03c4\u03b7\u03c4\u03b5\u03c2 \u03b3\u03b9\u03b1 \u03c4\u03b7\u03bd \u03ba\u03b1\u03c4\u03b1\u03bd\u03cc\u03b7\u03c3\u03b7 \u03c4\u03b7\u03c2 \u03c0\u03bb\u03ae\u03c1\u03bf\u03c5\u03c2 \u03c3\u03c5\u03bc\u03c0\u03b5\u03c1\u03b9\u03c6\u03bf\u03c1\u03ac\u03c2 \u03bf\u03bb\u03af\u03c3\u03b8\u03b7\u03c3\u03b7\u03c2 \u03c4\u03bf\u03c5 \u03c7\u03b1\u03c1\u03c4\u03b9\u03bf\u03cd. \u0397 \u03bc\u03ad\u03b8\u03bf\u03b4\u03bf\u03c2 \u03b5\u03af\u03bd\u03b1\u03b9 \u03b9\u03b4\u03b9\u03b1\u03af\u03c4\u03b5\u03c1\u03b1 \u03c0\u03bf\u03bb\u03cd\u03c4\u03b9\u03bc\u03b7 \u03b3\u03b9\u03b1 <strong data-start=\"4986\" data-end=\"5026\">\u03c7\u03b1\u03c1\u03c4\u03b9\u03ac \u03b3\u03c1\u03b1\u03c6\u03ae\u03c2 \u03ba\u03b1\u03b9 \u03b5\u03ba\u03c4\u03cd\u03c0\u03c9\u03c3\u03b7\u03c2 \u03c7\u03c9\u03c1\u03af\u03c2 \u03b5\u03c0\u03b9\u03ba\u03ac\u03bb\u03c5\u03c8\u03b7<\/strong>, \u03cc\u03c0\u03bf\u03c5 <strong data-start=\"5034\" data-end=\"5062\">\u03bf\u03bc\u03bf\u03b9\u03cc\u03bc\u03bf\u03c1\u03c6\u03b7 \u03b1\u03c0\u03cc\u03b4\u03bf\u03c3\u03b7 \u03c4\u03b7\u03c2 \u03c4\u03c1\u03bf\u03c6\u03ae\u03c2<\/strong> \u03b5\u03af\u03bd\u03b1\u03b9 \u03ba\u03c1\u03af\u03c3\u03b9\u03bc\u03b7.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p>Test Method for Coefficient of Static and Kinetic Friction of the Horizontal Plane Method Understanding the frictional behavior of paper is essential for ensuring optimal performance in printing, converting, and packaging operations. ASTM D4917 outlines a standardized procedure for measuring the coefficient of static and kinetic friction of uncoated printing and writing paper, guiding quality [&hellip;]<\/p>","protected":false},"author":2,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"elementor_header_footer","meta":{"footnotes":""},"class_list":["post-370","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.coefficientfriction.com\/el\/wp-json\/wp\/v2\/pages\/370","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.coefficientfriction.com\/el\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.coefficientfriction.com\/el\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.coefficientfriction.com\/el\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.coefficientfriction.com\/el\/wp-json\/wp\/v2\/comments?post=370"}],"version-history":[{"count":6,"href":"https:\/\/www.coefficientfriction.com\/el\/wp-json\/wp\/v2\/pages\/370\/revisions"}],"predecessor-version":[{"id":713,"href":"https:\/\/www.coefficientfriction.com\/el\/wp-json\/wp\/v2\/pages\/370\/revisions\/713"}],"wp:attachment":[{"href":"https:\/\/www.coefficientfriction.com\/el\/wp-json\/wp\/v2\/media?parent=370"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}