{"id":598,"date":"2025-07-04T04:28:43","date_gmt":"2025-07-04T04:28:43","guid":{"rendered":"https:\/\/www.coefficientfriction.com\/?p=598"},"modified":"2025-07-08T03:29:09","modified_gmt":"2025-07-08T03:29:09","slug":"uncoated-writing-coefficient-of-friction-test-tappi-t549-guide","status":"publish","type":"post","link":"https:\/\/www.coefficientfriction.com\/el\/uncoated-writing-coefficient-of-friction-test-tappi-t549-guide","title":{"rendered":"\u0394\u03bf\u03ba\u03b9\u03bc\u03ae \u03c3\u03c5\u03bd\u03c4\u03b5\u03bb\u03b5\u03c3\u03c4\u03ae \u03c4\u03c1\u03b9\u03b2\u03ae\u03c2 \u03c7\u03c9\u03c1\u03af\u03c2 \u03b5\u03c0\u03b9\u03ba\u03ac\u03bb\u03c5\u03c8\u03b7: TAPPI T549"},"content":{"rendered":"<div data-elementor-type=\"wp-post\" data-elementor-id=\"598\" class=\"elementor elementor-598\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"elementor-element elementor-element-6976a1e e-flex e-con-boxed e-con e-parent\" data-id=\"6976a1e\" 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-2585190 elementor-widget elementor-widget-heading\" data-id=\"2585190\" data-element_type=\"widget\" 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\u03b7\u03bc\u03b1\u03c3\u03af\u03b1 \u03c4\u03c9\u03bd \u03b4\u03bf\u03ba\u03b9\u03bc\u03ce\u03bd \u03c4\u03c1\u03b9\u03b2\u03ae\u03c2 \u03b3\u03b9\u03b1 \u03c7\u03b1\u03c1\u03c4\u03b9\u03ac \u03b3\u03c1\u03b1\u03c6\u03ae\u03c2 \u03c7\u03c9\u03c1\u03af\u03c2 \u03b5\u03c0\u03b9\u03ba\u03ac\u03bb\u03c5\u03c8\u03b7<\/h2>\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-da0651b e-flex e-con-boxed e-con e-parent\" data-id=\"da0651b\" 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-77d329b elementor-widget elementor-widget-text-editor\" data-id=\"77d329b\" 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 data-start=\"914\" data-end=\"1307\">\u03a4\u03bf <strong data-start=\"918\" data-end=\"951\">\u03c3\u03c5\u03bd\u03c4\u03b5\u03bb\u03b5\u03c3\u03c4\u03ae\u03c2 \u03c4\u03c1\u03b9\u03b2\u03ae\u03c2 (COF)<\/strong> \u03b5\u03af\u03bd\u03b1\u03b9 \u03bc\u03b9\u03b1 \u03ba\u03c1\u03af\u03c3\u03b9\u03bc\u03b7 \u03b9\u03b4\u03b9\u03cc\u03c4\u03b7\u03c4\u03b1 \u03c0\u03bf\u03c5 \u03b5\u03c0\u03b7\u03c1\u03b5\u03ac\u03b6\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\u03b5 \u03bc\u03b7\u03c7\u03b1\u03bd\u03b9\u03c3\u03bc\u03bf\u03cd\u03c2 \u03c4\u03c1\u03bf\u03c6\u03bf\u03b4\u03bf\u03c3\u03af\u03b1\u03c2 \u03ba\u03b1\u03b9 \u03bc\u03b5\u03c4\u03b1\u03c6\u03bf\u03c1\u03ac\u03c2 \u03c5\u03c8\u03b7\u03bb\u03ae\u03c2 \u03c4\u03b1\u03c7\u03cd\u03c4\u03b7\u03c4\u03b1\u03c2. \u0397 \u03c5\u03c0\u03b5\u03c1\u03b2\u03bf\u03bb\u03b9\u03ba\u03ae \u03c4\u03c1\u03b9\u03b2\u03ae \u03bc\u03c0\u03bf\u03c1\u03b5\u03af \u03bd\u03b1 \u03c0\u03c1\u03bf\u03ba\u03b1\u03bb\u03ad\u03c3\u03b5\u03b9 \u03b5\u03bc\u03c0\u03bb\u03bf\u03ba\u03ae \u03c7\u03b1\u03c1\u03c4\u03b9\u03bf\u03cd- \u03b7 \u03c0\u03bf\u03bb\u03cd \u03bc\u03b9\u03ba\u03c1\u03ae \u03c4\u03c1\u03b9\u03b2\u03ae \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 \u03ae \u03bf\u03bb\u03af\u03c3\u03b8\u03b7\u03c3\u03b7. <strong data-start=\"1150\" data-end=\"1177\">\u03a7\u03b1\u03c1\u03c4\u03b9\u03ac \u03b3\u03c1\u03b1\u03c6\u03ae\u03c2 \u03c7\u03c9\u03c1\u03af\u03c2 \u03b5\u03c0\u03b9\u03ba\u03ac\u03bb\u03c5\u03c8\u03b7<\/strong>, \u03c0\u03bf\u03c5 \u03c7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03b9\u03bf\u03cd\u03bd\u03c4\u03b1\u03b9 \u03c3\u03c5\u03c7\u03bd\u03ac \u03c3\u03b5 \u03b5\u03c0\u03b9\u03c4\u03c1\u03b1\u03c0\u03ad\u03b6\u03b9\u03bf\u03c5\u03c2 \u03b5\u03ba\u03c4\u03c5\u03c0\u03c9\u03c4\u03ad\u03c2, \u03c6\u03c9\u03c4\u03bf\u03b1\u03bd\u03c4\u03b9\u03b3\u03c1\u03b1\u03c6\u03b9\u03ba\u03ac \u03bc\u03b7\u03c7\u03b1\u03bd\u03ae\u03bc\u03b1\u03c4\u03b1 \u03ba\u03b1\u03b9 \u03c3\u03b7\u03bc\u03b5\u03b9\u03c9\u03bc\u03b1\u03c4\u03ac\u03c1\u03b9\u03b1, \u03b1\u03c0\u03b1\u03b9\u03c4\u03bf\u03cd\u03bd \u03b1\u03ba\u03c1\u03b9\u03b2\u03ce\u03c2 \u03c4\u03b1 \u03ba\u03b1\u03c4\u03ac\u03bb\u03bb\u03b7\u03bb\u03b1 \u03c7\u03b1\u03c1\u03b1\u03ba\u03c4\u03b7\u03c1\u03b9\u03c3\u03c4\u03b9\u03ba\u03ac \u03c4\u03c1\u03b9\u03b2\u03ae\u03c2 \u03b3\u03b9\u03b1 \u03b1\u03be\u03b9\u03cc\u03c0\u03b9\u03c3\u03c4\u03b7 \u03b1\u03c0\u03cc\u03b4\u03bf\u03c3\u03b7.<\/p><p data-start=\"1309\" data-end=\"1614\">\u03a4\u03bf TAPPI T549 \u03c0\u03b5\u03c1\u03b9\u03b3\u03c1\u03ac\u03c6\u03b5\u03b9 \u03c4\u03b7\u03bd \u03c4\u03c5\u03c0\u03bf\u03c0\u03bf\u03b9\u03b7\u03bc\u03ad\u03bd\u03b7 \u03bc\u03ad\u03b8\u03bf\u03b4\u03bf \u03b3\u03b9\u03b1 \u03c4\u03b7 \u03bc\u03ad\u03c4\u03c1\u03b7\u03c3\u03b7 \u03c4\u03b7\u03c2 <strong data-start=\"1367\" data-end=\"1393\">\u03c3\u03c4\u03b1\u03c4\u03b9\u03ba\u03ae \u03ba\u03b1\u03b9 \u03ba\u03b9\u03bd\u03b7\u03c4\u03b9\u03ba\u03ae COF<\/strong> \u03b1\u03c5\u03c4\u03ce\u03bd \u03c4\u03c9\u03bd \u03c5\u03bb\u03b9\u03ba\u03ce\u03bd. \u03a3\u03b5 \u03b1\u03bd\u03c4\u03af\u03b8\u03b5\u03c3\u03b7 \u03bc\u03b5 \u03c4\u03b1 \u03c5\u03bb\u03b9\u03ba\u03ac \u03c3\u03c5\u03c3\u03ba\u03b5\u03c5\u03b1\u03c3\u03af\u03b1\u03c2 \u03c0\u03bf\u03c5 \u03b4\u03bf\u03ba\u03b9\u03bc\u03ac\u03b6\u03bf\u03bd\u03c4\u03b1\u03b9 \u03bc\u03b5 \u03bc\u03b5\u03b8\u03cc\u03b4\u03bf\u03c5\u03c2 \u03ba\u03b5\u03ba\u03bb\u03b9\u03bc\u03ad\u03bd\u03bf\u03c5 \u03b5\u03c0\u03b9\u03c0\u03ad\u03b4\u03bf\u03c5 (TAPPI T815), \u03b7 \u03bc\u03ad\u03b8\u03bf\u03b4\u03bf\u03c2 \u03b1\u03c5\u03c4\u03ae \u03b5\u03c6\u03b1\u03c1\u03bc\u03cc\u03b6\u03b5\u03b9 \u03ad\u03bd\u03b1 <strong data-start=\"1513\" data-end=\"1533\">\u03bf\u03c1\u03b9\u03b6\u03cc\u03bd\u03c4\u03b9\u03bf \u03b5\u03c0\u03af\u03c0\u03b5\u03b4\u03bf<\/strong> \u03c1\u03cd\u03b8\u03bc\u03b9\u03c3\u03b7 \u03b4\u03bf\u03ba\u03b9\u03bc\u03ce\u03bd, \u03b5\u03c0\u03b9\u03c4\u03c1\u03ad\u03c0\u03bf\u03bd\u03c4\u03b1\u03c2 \u03b1\u03ba\u03c1\u03b9\u03b2\u03ae \u03ba\u03b1\u03b9 \u03c3\u03c5\u03bd\u03b5\u03c0\u03ae \u03b1\u03c0\u03bf\u03c4\u03b5\u03bb\u03ad\u03c3\u03bc\u03b1\u03c4\u03b1 \u03bc\u03b5 \u03b5\u03bb\u03ac\u03c7\u03b9\u03c3\u03c4\u03b7 \u03bc\u03b5\u03c4\u03b1\u03b2\u03bb\u03b7\u03c4\u03cc\u03c4\u03b7\u03c4\u03b1.<\/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-f44cb14 e-flex e-con-boxed e-con e-parent\" data-id=\"f44cb14\" 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-1164ce2 elementor-widget elementor-widget-heading\" data-id=\"1164ce2\" data-element_type=\"widget\" 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\u03c3\u03ba\u03b5\u03c5\u03ae \u03bc\u03ad\u03c4\u03c1\u03b7\u03c3\u03b7\u03c2 \u03c3\u03c5\u03bd\u03c4\u03b5\u03bb\u03b5\u03c3\u03c4\u03ae \u03c4\u03c1\u03b9\u03b2\u03ae\u03c2 \u03b3\u03b9\u03b1 \u03b4\u03bf\u03ba\u03b9\u03bc\u03ad\u03c2 \u03c7\u03b1\u03c1\u03c4\u03b9\u03bf\u03cd<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-bfa0c9e elementor-widget elementor-widget-text-editor\" data-id=\"bfa0c9e\" 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>\u0395\u03c0\u03b9\u03bb\u03ad\u03b3\u03bf\u03bd\u03c4\u03b1\u03c2 \u03c4\u03bf \u03c3\u03c9\u03c3\u03c4\u03cc <strong data-start=\"1705\" data-end=\"1751\">\u03c3\u03c5\u03c3\u03ba\u03b5\u03c5\u03ae \u03bc\u03ad\u03c4\u03c1\u03b7\u03c3\u03b7\u03c2 \u03c4\u03bf\u03c5 \u03c3\u03c5\u03bd\u03c4\u03b5\u03bb\u03b5\u03c3\u03c4\u03ae \u03c4\u03c1\u03b9\u03b2\u03ae\u03c2<\/strong> \u03b5\u03af\u03bd\u03b1\u03b9 \u03b1\u03c0\u03b1\u03c1\u03b1\u03af\u03c4\u03b7\u03c4\u03b7 \u03b3\u03b9\u03b1 \u03c4\u03b7 \u03c3\u03c5\u03bc\u03bc\u03cc\u03c1\u03c6\u03c9\u03c3\u03b7 \u03bc\u03b5 \u03c4\u03bf TAPPI T549. \u0397 \u03b4\u03b9\u03ac\u03c4\u03b1\u03be\u03b7 \u03b4\u03bf\u03ba\u03b9\u03bc\u03ae\u03c2 \u03c0\u03b5\u03c1\u03b9\u03bb\u03b1\u03bc\u03b2\u03ac\u03bd\u03b5\u03b9 \u03bc\u03b9\u03b1 \u03bf\u03c1\u03b9\u03b6\u03cc\u03bd\u03c4\u03b9\u03b1 \u03b5\u03c0\u03af\u03c0\u03b5\u03b4\u03b7 \u03b5\u03c0\u03b9\u03c6\u03ac\u03bd\u03b5\u03b9\u03b1 \u03ba\u03b1\u03b9 \u03ad\u03bd\u03b1 \u03bc\u03b5\u03c4\u03b1\u03bb\u03bb\u03b9\u03ba\u03cc \u03ad\u03bb\u03ba\u03b7\u03b8\u03c1\u03bf \u03b5\u03be\u03bf\u03c0\u03bb\u03b9\u03c3\u03bc\u03ad\u03bd\u03bf \u03bc\u03b5 \u03b5\u03bb\u03b1\u03c3\u03c4\u03b9\u03ba\u03cc \u03c5\u03c0\u03cc\u03c3\u03c4\u03c1\u03c9\u03bc\u03b1. \u03a4\u03bf \u03ad\u03bb\u03ba\u03b7\u03b8\u03c1\u03bf \u03c4\u03bf\u03c0\u03bf\u03b8\u03b5\u03c4\u03b5\u03af\u03c4\u03b1\u03b9 \u03c0\u03ac\u03bd\u03c9 \u03b1\u03c0\u03cc \u03ad\u03bd\u03b1 \u03b4\u03b5\u03af\u03b3\u03bc\u03b1 \u03c7\u03b1\u03c1\u03c4\u03b9\u03bf\u03cd \u03ba\u03b1\u03b9 \u03ba\u03b9\u03bd\u03b5\u03af\u03c4\u03b1\u03b9 \u03bc\u03b5 \u03c3\u03c4\u03b1\u03b8\u03b5\u03c1\u03ae \u03c4\u03b1\u03c7\u03cd\u03c4\u03b7\u03c4\u03b1, \u03c3\u03c5\u03bd\u03ae\u03b8\u03c9\u03c2 150 \u00b1 30 mm\/min.<\/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-7dc3c53 e-flex e-con-boxed e-con e-parent\" data-id=\"7dc3c53\" 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-f9181a5 elementor-widget elementor-widget-text-editor\" data-id=\"f9181a5\" 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 data-start=\"1990\" data-end=\"2203\">\u03a4\u03bf Cell Instruments \u03c0\u03c1\u03bf\u03c3\u03c6\u03ad\u03c1\u03b5\u03b9 <strong data-start=\"2018\" data-end=\"2059\">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>, \u03c3\u03c7\u03b5\u03b4\u03b9\u03b1\u03c3\u03bc\u03ad\u03bd\u03bf \u03b5\u03b9\u03b4\u03b9\u03ba\u03ac \u03b3\u03b9\u03b1 \u03bd\u03b1 \u03c0\u03b1\u03c1\u03ad\u03c7\u03b5\u03b9 \u03b1\u03be\u03b9\u03cc\u03c0\u03b9\u03c3\u03c4\u03b5\u03c2, \u03b5\u03c0\u03b1\u03bd\u03b1\u03bb\u03b1\u03bc\u03b2\u03b1\u03bd\u03cc\u03bc\u03b5\u03bd\u03b5\u03c2 \u03bc\u03b5\u03c4\u03c1\u03ae\u03c3\u03b5\u03b9\u03c2 \u03c4\u03c9\u03bd <strong data-start=\"2131\" data-end=\"2157\">\u03c3\u03c4\u03b1\u03c4\u03b9\u03ba\u03ae \u03ba\u03b1\u03b9 \u03ba\u03b9\u03bd\u03b7\u03c4\u03b9\u03ba\u03ae COF<\/strong> \u03b3\u03b9\u03b1 \u03b5\u03c1\u03b3\u03b1\u03c3\u03af\u03b5\u03c2 \u03ba\u03b1\u03b9 \u03c4\u03b1\u03b9\u03bd\u03af\u03b5\u03c2. \u0391\u03c5\u03c4\u03cc\u03c2 \u03bf \u03b5\u03be\u03bf\u03c0\u03bb\u03b9\u03c3\u03bc\u03cc\u03c2 \u03b5\u03be\u03b1\u03c3\u03c6\u03b1\u03bb\u03af\u03b6\u03b5\u03b9:<\/p><ul><li data-start=\"2207\" data-end=\"2231\">\u03a3\u03c4\u03b1\u03b8\u03b5\u03c1\u03ae \u03bf\u03c1\u03b9\u03b6\u03cc\u03bd\u03c4\u03b9\u03b1 \u03ba\u03af\u03bd\u03b7\u03c3\u03b7<\/li><li data-start=\"2234\" data-end=\"2261\">\u0391\u03bd\u03af\u03c7\u03bd\u03b5\u03c5\u03c3\u03b7 \u03c6\u03bf\u03c1\u03c4\u03af\u03bf\u03c5 \u03c5\u03c8\u03b7\u03bb\u03ae\u03c2 \u03b1\u03ba\u03c1\u03af\u03b2\u03b5\u03b9\u03b1\u03c2<\/li><li data-start=\"2264\" data-end=\"2294\">\u03a0\u03bb\u03ae\u03c1\u03c9\u03c2 \u03c0\u03c1\u03bf\u03b3\u03c1\u03b1\u03bc\u03bc\u03b1\u03c4\u03b9\u03b6\u03cc\u03bc\u03b5\u03bd\u03bf\u03b9 \u03ba\u03cd\u03ba\u03bb\u03bf\u03b9 \u03b4\u03bf\u03ba\u03b9\u03bc\u03ce\u03bd<\/li><li data-start=\"2297\" data-end=\"2330\">\u0395\u03bc\u03c6\u03ac\u03bd\u03b9\u03c3\u03b7 \u03c3\u03b5 \u03c0\u03c1\u03b1\u03b3\u03bc\u03b1\u03c4\u03b9\u03ba\u03cc \u03c7\u03c1\u03cc\u03bd\u03bf \u03ba\u03b1\u03b9 \u03b5\u03be\u03b1\u03b3\u03c9\u03b3\u03ae \u03b4\u03b5\u03b4\u03bf\u03bc\u03ad\u03bd\u03c9\u03bd<\/li><\/ul><p>\u03a7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03b9\u03ce\u03bd\u03c4\u03b1\u03c2 \u03bc\u03b9\u03b1 \u03c3\u03c5\u03c3\u03ba\u03b5\u03c5\u03ae \u03c5\u03c8\u03b7\u03bb\u03ae\u03c2 \u03c0\u03bf\u03b9\u03cc\u03c4\u03b7\u03c4\u03b1\u03c2 \u03cc\u03c0\u03c9\u03c2 <strong data-start=\"2368\" data-end=\"2378\">COF-01<\/strong>, \u03bf\u03b9 \u03ba\u03b1\u03c4\u03b1\u03c3\u03ba\u03b5\u03c5\u03b1\u03c3\u03c4\u03ad\u03c2 \u03c7\u03b1\u03c1\u03c4\u03b9\u03bf\u03cd \u03ba\u03b1\u03b9 \u03bf\u03b9 \u03bf\u03bc\u03ac\u03b4\u03b5\u03c2 \u03c0\u03bf\u03b9\u03bf\u03c4\u03b9\u03ba\u03bf\u03cd \u03b5\u03bb\u03ad\u03b3\u03c7\u03bf\u03c5 \u03bc\u03c0\u03bf\u03c1\u03bf\u03cd\u03bd \u03bd\u03b1 \u03b1\u03be\u03b9\u03bf\u03bb\u03bf\u03b3\u03bf\u03cd\u03bd \u03bc\u03b5 \u03c3\u03b9\u03b3\u03bf\u03c5\u03c1\u03b9\u03ac \u03c4\u03b9\u03c2 \u03b9\u03b4\u03b9\u03cc\u03c4\u03b7\u03c4\u03b5\u03c2 \u03c4\u03c9\u03bd \u03c5\u03bb\u03b9\u03ba\u03ce\u03bd \u03ba\u03b1\u03b9 \u03bd\u03b1 \u03b2\u03b5\u03bb\u03c4\u03b9\u03ce\u03bd\u03bf\u03c5\u03bd \u03c4\u03b7\u03bd \u03b1\u03c0\u03cc\u03b4\u03bf\u03c3\u03b7 \u03c4\u03b7\u03c2 \u03bc\u03b5\u03c4\u03b1\u03c4\u03c1\u03bf\u03c0\u03ae\u03c2 \u03ae \u03c4\u03b7\u03c2 \u03b5\u03ba\u03c4\u03cd\u03c0\u03c9\u03c3\u03b7\u03c2.<\/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-beb2b52 e-flex e-con-boxed e-con e-parent\" data-id=\"beb2b52\" 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-501b09e elementor-widget elementor-widget-heading\" data-id=\"501b09e\" data-element_type=\"widget\" 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\">\u0394\u03b9\u03b1\u03b4\u03b9\u03ba\u03b1\u03c3\u03af\u03b1 \u03b4\u03bf\u03ba\u03b9\u03bc\u03ae\u03c2 TAPPI T549 \u03b2\u03ae\u03bc\u03b1 \u03c0\u03c1\u03bf\u03c2 \u03b2\u03ae\u03bc\u03b1 \u03b3\u03b9\u03b1 \u03bc\u03b7 \u03b5\u03c0\u03b9\u03ba\u03b1\u03bb\u03c5\u03bc\u03bc\u03ad\u03bd\u03bf \u03b3\u03c1\u03b1\u03c0\u03c4\u03cc \u03c5\u03bb\u03b9\u03ba\u03cc<\/h2>\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-ab6cf6b e-flex e-con-boxed e-con e-parent\" data-id=\"ab6cf6b\" 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-fdc8f58 elementor-widget elementor-widget-heading\" data-id=\"fdc8f58\" data-element_type=\"widget\" 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\">\u03a0\u03c1\u03bf\u03b5\u03c4\u03bf\u03b9\u03bc\u03b1\u03c3\u03af\u03b1 \u03b4\u03b5\u03af\u03b3\u03bc\u03b1\u03c4\u03bf\u03c2 \u03b3\u03c1\u03b1\u03c6\u03ae\u03c2 \u03c7\u03c9\u03c1\u03af\u03c2 \u03b5\u03c0\u03b9\u03ba\u03ac\u03bb\u03c5\u03c8\u03b7<\/h3>\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-27bbc49 e-flex e-con-boxed e-con e-parent\" data-id=\"27bbc49\" 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-1468ecc elementor-widget__width-initial elementor-widget elementor-widget-video\" data-id=\"1468ecc\" data-element_type=\"widget\" data-settings=\"{&quot;youtube_url&quot;:&quot;https:\\\/\\\/youtu.be\\\/Iq-UFiGqF64&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;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-8824434 elementor-widget elementor-widget-text-editor\" data-id=\"8824434\" 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<ul><li data-start=\"2596\" data-end=\"2712\"><strong data-start=\"2596\" data-end=\"2617\">\u0395\u03c0\u03b9\u03bb\u03bf\u03b3\u03ae \u03b4\u03b5\u03af\u03b3\u03bc\u03b1\u03c4\u03bf\u03c2:<\/strong><br data-start=\"2617\" data-end=\"2620\" \/>\u03a7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03b9\u03ae\u03c3\u03c4\u03b5 \u03ad\u03bd\u03b1 \u03ad\u03c4\u03bf\u03b9\u03bc\u03bf \u03ba\u03b1\u03c1\u03bf\u03cd\u03bb\u03b9 \u03ae \u03c3\u03b7\u03ba\u03ce\u03c3\u03c4\u03b5 \u03b4\u03b5\u03af\u03b3\u03bc\u03b1 \u03b1\u03c0\u03cc \u03c1\u03bf\u03bb\u03cc. \u0391\u03ba\u03bf\u03bb\u03bf\u03c5\u03b8\u03ae\u03c3\u03c4\u03b5 \u03c4\u03bf TAPPI T400 \u03b3\u03b9\u03b1 \u03c4\u03b1 \u03c0\u03c1\u03c9\u03c4\u03cc\u03ba\u03bf\u03bb\u03bb\u03b1 \u03b4\u03b5\u03b9\u03b3\u03bc\u03b1\u03c4\u03bf\u03bb\u03b7\u03c8\u03af\u03b1\u03c2.<\/li><li data-start=\"2717\" data-end=\"2867\"><strong data-start=\"2717\" data-end=\"2738\">\u039a\u03bf\u03c0\u03ae \u03b4\u03b5\u03b9\u03b3\u03bc\u03ac\u03c4\u03c9\u03bd:<\/strong><br data-start=\"2738\" data-end=\"2741\" \/>\u039a\u03cc\u03c8\u03c4\u03b5 \u03b6\u03b5\u03cd\u03b3\u03b7 \u03b4\u03b5\u03b9\u03b3\u03bc\u03ac\u03c4\u03c9\u03bd - \u03ad\u03bd\u03b1 \u03bc\u03b5\u03b3\u03b1\u03bb\u03cd\u03c4\u03b5\u03c1\u03bf (100 \u00d7 215 mm) \u03ba\u03b1\u03b9 \u03ad\u03bd\u03b1 \u03bc\u03b9\u03ba\u03c1\u03cc\u03c4\u03b5\u03c1\u03bf (75 \u00d7 130 mm) - \u03b4\u03b9\u03b1\u03c3\u03c6\u03b1\u03bb\u03af\u03b6\u03bf\u03bd\u03c4\u03b1\u03c2 \u03c4\u03b7 \u03c3\u03c9\u03c3\u03c4\u03ae \u03b5\u03c5\u03b8\u03c5\u03b3\u03c1\u03ac\u03bc\u03bc\u03b9\u03c3\u03b7 \u03c4\u03b7\u03c2 \u03ba\u03b1\u03c4\u03b5\u03cd\u03b8\u03c5\u03bd\u03c3\u03b7\u03c2 \u03c4\u03b7\u03c2 \u03bc\u03b7\u03c7\u03b1\u03bd\u03ae\u03c2.<\/li><li data-start=\"2872\" data-end=\"2978\"><strong data-start=\"2872\" data-end=\"2889\">\u03a0\u03c1\u03bf\u03b5\u03c4\u03bf\u03b9\u03bc\u03b1\u03c3\u03af\u03b1:<\/strong><br data-start=\"2889\" data-end=\"2892\" \/>\u03a0\u03c1\u03bf\u03b5\u03c4\u03bf\u03b9\u03bc\u03b1\u03c3\u03af\u03b1 \u03ba\u03b1\u03b9 \u03b4\u03bf\u03ba\u03b9\u03bc\u03ae \u03b4\u03b5\u03b9\u03b3\u03bc\u03ac\u03c4\u03c9\u03bd \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 TAPPI T402.<\/li><\/ul>\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-006d0a5 e-flex e-con-boxed e-con e-parent\" data-id=\"006d0a5\" 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-6cedcf8 elementor-widget elementor-widget-heading\" data-id=\"6cedcf8\" data-element_type=\"widget\" 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\">\u0395\u03b3\u03ba\u03b1\u03c4\u03ac\u03c3\u03c4\u03b1\u03c3\u03b7 \u03ba\u03b1\u03b9 \u03b5\u03ba\u03c4\u03ad\u03bb\u03b5\u03c3\u03b7 \u03b4\u03bf\u03ba\u03b9\u03bc\u03ae\u03c2<\/h3>\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-3ab733f e-flex e-con-boxed e-con e-parent\" data-id=\"3ab733f\" 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-de00431 elementor-widget elementor-widget-text-editor\" data-id=\"de00431\" 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<ul><li data-start=\"3013\" data-end=\"3038\"><strong data-start=\"3013\" data-end=\"3036\">\u0394\u03b5\u03af\u03b3\u03bc\u03b1\u03c4\u03b1 \u03c4\u03bf\u03c0\u03bf\u03b8\u03ad\u03c4\u03b7\u03c3\u03b7\u03c2:<\/strong><ul><li>\u03a4\u03bf\u03c0\u03bf\u03b8\u03b5\u03c4\u03ae\u03c3\u03c4\u03b5 \u03c4\u03bf \u03bc\u03b5\u03b3\u03b1\u03bb\u03cd\u03c4\u03b5\u03c1\u03bf \u03b4\u03bf\u03ba\u03af\u03bc\u03b9\u03bf \u03c3\u03c4\u03bf \u03bf\u03c1\u03b9\u03b6\u03cc\u03bd\u03c4\u03b9\u03bf \u03b5\u03c0\u03af\u03c0\u03b5\u03b4\u03bf \u03b4\u03bf\u03ba\u03b9\u03bc\u03ae\u03c2 \u03bc\u03b5 \u03c4\u03b7\u03bd \u03c0\u03bb\u03b5\u03c5\u03c1\u03ac \u03c4\u03b7\u03c2 \u03c4\u03c3\u03cc\u03c7\u03b1\u03c2 \u03c0\u03c1\u03bf\u03c2 \u03c4\u03b1 \u03c0\u03ac\u03bd\u03c9.<\/li><li>\u03a4\u03bf\u03c0\u03bf\u03b8\u03b5\u03c4\u03ae\u03c3\u03c4\u03b5 \u03c4\u03bf \u03bc\u03b9\u03ba\u03c1\u03cc\u03c4\u03b5\u03c1\u03bf \u03b4\u03b5\u03af\u03b3\u03bc\u03b1 \u03c3\u03c4\u03bf \u03ad\u03bb\u03ba\u03b7\u03b8\u03c1\u03bf \u03bc\u03b5 \u03c4\u03b7\u03bd \u03c0\u03bb\u03b5\u03c5\u03c1\u03ac \u03c4\u03bf\u03c5 \u03c3\u03cd\u03c1\u03bc\u03b1\u03c4\u03bf\u03c2 \u03c0\u03c1\u03bf\u03c2 \u03c4\u03b1 \u03ba\u03ac\u03c4\u03c9.<\/li><\/ul><\/li><li data-start=\"3207\" data-end=\"3231\"><strong data-start=\"3207\" data-end=\"3229\">\u039e\u03b5\u03ba\u03b9\u03bd\u03ce\u03bd\u03c4\u03b1\u03c2 \u03c4\u03bf \u03c4\u03b5\u03c3\u03c4:<\/strong><ul><li>\u03a4\u03bf\u03c0\u03bf\u03b8\u03b5\u03c4\u03ae\u03c3\u03c4\u03b5 \u03b1\u03c0\u03b1\u03bb\u03ac \u03c4\u03bf \u03ad\u03bb\u03ba\u03b7\u03b8\u03c1\u03bf \u03c0\u03ac\u03bd\u03c9 \u03c3\u03c4\u03bf \u03b4\u03b5\u03af\u03b3\u03bc\u03b1 \u03c7\u03c9\u03c1\u03af\u03c2 \u03c0\u03bb\u03b5\u03c5\u03c1\u03b9\u03ba\u03ae \u03ba\u03af\u03bd\u03b7\u03c3\u03b7.<\/li><li>\u039e\u03b5\u03ba\u03b9\u03bd\u03ae\u03c3\u03c4\u03b5 \u03c4\u03b7\u03bd \u03bf\u03c1\u03b9\u03b6\u03cc\u03bd\u03c4\u03b9\u03b1 \u03ba\u03af\u03bd\u03b7\u03c3\u03b7 \u03c7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03b9\u03ce\u03bd\u03c4\u03b1\u03c2 \u03c4\u03b7 \u03bc\u03b7\u03c7\u03b1\u03bd\u03b9\u03ba\u03ae \u03bc\u03bf\u03bd\u03ac\u03b4\u03b1 \u03b9\u03c3\u03c7\u03cd\u03bf\u03c2 \u03c4\u03bf\u03c5 \u03bf\u03c1\u03b3\u03ac\u03bd\u03bf\u03c5.<\/li><\/ul><\/li><li data-start=\"3397\" data-end=\"3424\"><strong data-start=\"3397\" data-end=\"3422\">\u039a\u03b1\u03c4\u03b1\u03b3\u03c1\u03b1\u03c6\u03ae \u03c4\u03b9\u03bc\u03ce\u03bd COF:<\/strong><ul><li data-start=\"3430\" data-end=\"3501\"><strong data-start=\"3430\" data-end=\"3445\">\u03a3\u03c4\u03b1\u03c4\u03b9\u03ba\u03ae COF:<\/strong> \u039c\u03b5\u03c4\u03c1\u03ae\u03c3\u03c4\u03b5 \u03c4\u03b7 \u03bc\u03ad\u03b3\u03b9\u03c3\u03c4\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.<\/li><li data-start=\"3507\" data-end=\"3588\"><strong data-start=\"3507\" data-end=\"3523\">\u039a\u03b9\u03bd\u03b7\u03c4\u03b9\u03ba\u03ae COF:<\/strong> \u039a\u03b1\u03c4\u03b1\u03b3\u03c1\u03ac\u03c8\u03c4\u03b5 \u03c4\u03b7 \u03bc\u03ad\u03c3\u03b7 \u03b4\u03cd\u03bd\u03b1\u03bc\u03b7 \u03b3\u03b9\u03b1 \u03c0\u03b5\u03c1\u03af\u03c0\u03bf\u03c5 130 mm \u03bf\u03bb\u03af\u03c3\u03b8\u03b7\u03c3\u03b7\u03c2.<\/li><\/ul><\/li><\/ul>\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-289a5e8 e-flex e-con-boxed e-con e-parent\" data-id=\"289a5e8\" 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-13cb1be elementor-widget elementor-widget-heading\" data-id=\"13cb1be\" data-element_type=\"widget\" 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\">\u03a5\u03c0\u03bf\u03bb\u03bf\u03b3\u03b9\u03c3\u03bc\u03bf\u03af COF \u03c7\u03c9\u03c1\u03af\u03c2 \u03b5\u03c0\u03b9\u03ba\u03ac\u03bb\u03c5\u03c8\u03b7 \u03b3\u03c1\u03b1\u03c6\u03ae\u03c2<\/h2>\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-fa132c4 e-flex e-con-boxed e-con e-parent\" data-id=\"fa132c4\" 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-53d8df7 elementor-widget elementor-widget-text-editor\" data-id=\"53d8df7\" 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 data-start=\"3608\" data-end=\"3643\">\u039f\u03b9 \u03c3\u03c5\u03bd\u03c4\u03b5\u03bb\u03b5\u03c3\u03c4\u03ad\u03c2 \u03c5\u03c0\u03bf\u03bb\u03bf\u03b3\u03af\u03b6\u03bf\u03bd\u03c4\u03b1\u03b9 \u03c9\u03c2 \u03b5\u03be\u03ae\u03c2:<\/p><ul><li data-start=\"3647\" data-end=\"3706\"><strong data-start=\"3647\" data-end=\"3706\">\u03a3\u03c4\u03b1\u03c4\u03b9\u03ba\u03ae COF = \u0391\u03c1\u03c7\u03b9\u03ba\u03ae \u03b4\u03cd\u03bd\u03b1\u03bc\u03b7 (mN) \/ (\u03bc\u03ac\u03b6\u03b1 \u03ad\u03bb\u03ba\u03b7\u03b8\u03c1\u03bf\u03c5 \u00d7 9,80665)<\/strong><\/li><li data-start=\"3709\" data-end=\"3769\"><strong data-start=\"3709\" data-end=\"3769\">\u039a\u03b9\u03bd\u03b7\u03c4\u03b9\u03ba\u03ae COF = \u039c\u03ad\u03c3\u03b7 \u03b4\u03cd\u03bd\u03b1\u03bc\u03b7 (mN) \/ (\u03bc\u03ac\u03b6\u03b1 \u03ad\u03bb\u03ba\u03b7\u03b8\u03c1\u03bf\u03c5 \u00d7 9,80665)<\/strong><\/li><\/ul><p data-start=\"3771\" data-end=\"3887\">\u039f\u03b9 \u03c4\u03b9\u03bc\u03ad\u03c2 \u03b1\u03c5\u03c4\u03ad\u03c2 \u03b5\u03af\u03bd\u03b1\u03b9 <em data-start=\"3788\" data-end=\"3798\">\u03c7\u03c9\u03c1\u03af\u03c2 \u03bc\u03bf\u03bd\u03ac\u03b4\u03b5\u03c2<\/em> \u03ba\u03b1\u03b9 \u03c0\u03c1\u03bf\u03c3\u03c6\u03ad\u03c1\u03bf\u03c5\u03bd \u03bc\u03b9\u03b1 \u03c3\u03b1\u03c6\u03ae \u03ad\u03bd\u03b4\u03b5\u03b9\u03be\u03b7 \u03c4\u03b7\u03c2 \u03b1\u03c0\u03cc\u03b4\u03bf\u03c3\u03b7\u03c2 \u03c4\u03bf\u03c5 \u03c7\u03b1\u03c1\u03c4\u03b9\u03bf\u03cd \u03ba\u03b1\u03c4\u03ac \u03c4\u03b7 \u03b4\u03b9\u03ac\u03c1\u03ba\u03b5\u03b9\u03b1 \u03c4\u03b7\u03c2 \u03c4\u03c1\u03bf\u03c6\u03bf\u03b4\u03bf\u03c3\u03af\u03b1\u03c2 \u03ba\u03b1\u03b9 \u03c4\u03bf\u03c5 \u03c7\u03b5\u03b9\u03c1\u03b9\u03c3\u03bc\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-4bcc067 e-flex e-con-boxed e-con e-parent\" data-id=\"4bcc067\" 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-a89bea2 elementor-widget elementor-widget-heading\" data-id=\"a89bea2\" data-element_type=\"widget\" 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\">\u0393\u03b9\u03b1\u03c4\u03af \u03bd\u03b1 \u03b5\u03c0\u03b9\u03bb\u03ad\u03be\u03b5\u03c4\u03b5 \u03c4\u03bf Cell Instruments COF-01 \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\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-ca70672 e-flex e-con-boxed e-con e-parent\" data-id=\"ca70672\" 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-d557a5e elementor-widget elementor-widget-image\" data-id=\"d557a5e\" data-element_type=\"widget\" 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\/coefficient-of-friction-testing-equipment\/\">\n\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"800\" height=\"800\" src=\"https:\/\/www.coefficientfriction.com\/wp-content\/uploads\/2025\/07\/COF-01-1024x1024.webp\" class=\"attachment-large size-large wp-image-603\" alt=\"\u03b4\u03bf\u03ba\u03b9\u03bc\u03ae \u03c3\u03c5\u03bd\u03c4\u03b5\u03bb\u03b5\u03c3\u03c4\u03ae \u03c4\u03c1\u03b9\u03b2\u03ae\u03c2 \u03c7\u03c9\u03c1\u03af\u03c2 \u03b5\u03c0\u03b9\u03ba\u03ac\u03bb\u03c5\u03c8\u03b7\" srcset=\"https:\/\/www.coefficientfriction.com\/wp-content\/uploads\/2025\/07\/COF-01-1024x1024.webp 1024w, https:\/\/www.coefficientfriction.com\/wp-content\/uploads\/2025\/07\/COF-01-300x300.webp 300w, https:\/\/www.coefficientfriction.com\/wp-content\/uploads\/2025\/07\/COF-01-150x150.webp 150w, https:\/\/www.coefficientfriction.com\/wp-content\/uploads\/2025\/07\/COF-01-768x768.webp 768w, https:\/\/www.coefficientfriction.com\/wp-content\/uploads\/2025\/07\/COF-01-12x12.webp 12w, https:\/\/www.coefficientfriction.com\/wp-content\/uploads\/2025\/07\/COF-01.webp 1200w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/>\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 class=\"elementor-element elementor-element-5ce0a36 elementor-widget__width-initial elementor-widget elementor-widget-text-editor\" data-id=\"5ce0a36\" 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 data-start=\"3960\" data-end=\"4102\">\u0395\u03c0\u03b1\u03b3\u03b3\u03b5\u03bb\u03bc\u03b1\u03c4\u03af\u03b5\u03c2 \u03c0\u03bf\u03c5 \u03b5\u03c0\u03b9\u03b4\u03b9\u03ce\u03ba\u03bf\u03c5\u03bd \u03c4\u03b7 \u03c3\u03c5\u03bc\u03bc\u03cc\u03c1\u03c6\u03c9\u03c3\u03b7 \u03bc\u03b5 <a href=\"https:\/\/www.coefficientfriction.com\/el\/tappi-t549\/\"><strong data-start=\"3998\" data-end=\"4012\">TAPPI T549<\/strong><\/a> \u03ba\u03b1\u03b9 \u03b1\u03be\u03b9\u03cc\u03c0\u03b9\u03c3\u03c4\u03b7 \u03b1\u03ba\u03c1\u03af\u03b2\u03b5\u03b9\u03b1 \u03b4\u03bf\u03ba\u03b9\u03bc\u03ae\u03c2 \u03b5\u03bc\u03c0\u03b9\u03c3\u03c4\u03b5\u03cd\u03bf\u03bd\u03c4\u03b1\u03b9 \u03c4\u03bf <strong data-start=\"4052\" data-end=\"4079\">Cell Instruments COF-01<\/strong>. \u03a4\u03b1 \u03b2\u03b1\u03c3\u03b9\u03ba\u03ac \u03bf\u03c6\u03ad\u03bb\u03b7 \u03c0\u03b5\u03c1\u03b9\u03bb\u03b1\u03bc\u03b2\u03ac\u03bd\u03bf\u03c5\u03bd:<\/p><ul><li data-start=\"4106\" data-end=\"4188\">\u03a3\u03c5\u03bc\u03bc\u03cc\u03c1\u03c6\u03c9\u03c3\u03b7 \u03bc\u03b5 \u03b4\u03b9\u03b5\u03b8\u03bd\u03ae \u03c0\u03c1\u03cc\u03c4\u03c5\u03c0\u03b1 \u03cc\u03c0\u03c9\u03c2 \u03c4\u03bf TAPPI T549, \u03c4\u03bf ISO 8295 \u03ba\u03b1\u03b9 \u03c4\u03bf ASTM D1894<\/li><li data-start=\"4191\" data-end=\"4259\">\u039a\u03cd\u03c4\u03c4\u03b1\u03c1\u03b1 \u03c6\u03bf\u03c1\u03c4\u03af\u03bf\u03c5 \u03c5\u03c8\u03b7\u03bb\u03ae\u03c2 \u03b1\u03bd\u03ac\u03bb\u03c5\u03c3\u03b7\u03c2 \u03b3\u03b9\u03b1 \u03c4\u03b7\u03bd \u03b1\u03bd\u03af\u03c7\u03bd\u03b5\u03c5\u03c3\u03b7 \u03b5\u03bb\u03ac\u03c7\u03b9\u03c3\u03c4\u03c9\u03bd \u03b4\u03c5\u03bd\u03ac\u03bc\u03b5\u03c9\u03bd \u03c4\u03c1\u03b9\u03b2\u03ae\u03c2<\/li><li data-start=\"4262\" data-end=\"4318\">\u039b\u03bf\u03b3\u03b9\u03c3\u03bc\u03b9\u03ba\u03cc \u03c6\u03b9\u03bb\u03b9\u03ba\u03cc \u03c0\u03c1\u03bf\u03c2 \u03c4\u03bf \u03c7\u03c1\u03ae\u03c3\u03c4\u03b7 \u03bc\u03b5 \u03b1\u03c5\u03c4\u03cc\u03bc\u03b1\u03c4\u03bf\u03c5\u03c2 \u03c5\u03c0\u03bf\u03bb\u03bf\u03b3\u03b9\u03c3\u03bc\u03bf\u03cd\u03c2 COF<\/li><li data-start=\"4321\" data-end=\"4399\">\u0391\u03c1\u03b8\u03c1\u03c9\u03c4\u03cc\u03c2 \u03c3\u03c7\u03b5\u03b4\u03b9\u03b1\u03c3\u03bc\u03cc\u03c2 \u03c0\u03c1\u03bf\u03c3\u03b1\u03c1\u03bc\u03cc\u03c3\u03b9\u03bc\u03bf\u03c2 \u03b3\u03b9\u03b1 \u03b4\u03b9\u03ac\u03c6\u03bf\u03c1\u03b1 \u03c5\u03bb\u03b9\u03ba\u03ac \u03c0\u03ad\u03c1\u03b1\u03bd \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 \u03b3\u03c1\u03b1\u03c6\u03ae\u03c2<\/li><\/ul><p data-start=\"4401\" data-end=\"4565\">\u0395\u03af\u03c4\u03b5 \u03c3\u03b5 <strong data-start=\"4412\" data-end=\"4424\">\u0395\u03c1\u03b3\u03b1\u03c3\u03c4\u03ae\u03c1\u03b9\u03b1 \u0395&amp;\u0391<\/strong>, <strong data-start=\"4426\" data-end=\"4443\">QA \u03c0\u03b1\u03c1\u03b1\u03b3\u03c9\u03b3\u03ae\u03c2<\/strong>, \u03ae <strong data-start=\"4448\" data-end=\"4480\">\u03b1\u03bd\u03b5\u03be\u03ac\u03c1\u03c4\u03b7\u03c4\u03bf\u03b9 \u03bf\u03c1\u03b3\u03b1\u03bd\u03b9\u03c3\u03bc\u03bf\u03af \u03b4\u03bf\u03ba\u03b9\u03bc\u03ce\u03bd<\/strong>, \u03c4\u03bf <strong data-start=\"4486\" data-end=\"4496\">COF-01<\/strong> \u03b2\u03b5\u03bb\u03c4\u03b9\u03ce\u03bd\u03b5\u03b9 \u03c4\u03b7\u03bd \u03b1\u03bd\u03ac\u03bb\u03c5\u03c3\u03b7 \u03c4\u03c1\u03b9\u03b2\u03ce\u03bd \u03ba\u03b1\u03b9 \u03c5\u03c0\u03bf\u03c3\u03c4\u03b7\u03c1\u03af\u03b6\u03b5\u03b9 \u03c4\u03b7 \u03c3\u03c4\u03b1\u03b8\u03b5\u03c1\u03ae \u03c0\u03bf\u03b9\u03cc\u03c4\u03b7\u03c4\u03b1 \u03c4\u03bf\u03c5 \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-6ad2863 e-flex e-con-boxed e-con e-parent\" data-id=\"6ad2863\" 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-1df1caf elementor-widget elementor-widget-heading\" data-id=\"1df1caf\" data-element_type=\"widget\" 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 \u03c4\u03c9\u03bd \u03b4\u03bf\u03ba\u03b9\u03bc\u03ce\u03bd COF \u03c3\u03c4\u03b7 \u03b2\u03b9\u03bf\u03bc\u03b7\u03c7\u03b1\u03bd\u03af\u03b1 \u03c7\u03b1\u03c1\u03c4\u03b9\u03bf\u03cd<\/h2>\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-79a80e6 e-flex e-con-boxed e-con e-parent\" data-id=\"79a80e6\" 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-82b42b9 elementor-widget elementor-widget-text-editor\" data-id=\"82b42b9\" 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 data-start=\"4622\" data-end=\"4741\">\u0397 \u03ba\u03b1\u03c4\u03b1\u03bd\u03cc\u03b7\u03c3\u03b7 \u03ba\u03b1\u03b9 \u03bf \u03ad\u03bb\u03b5\u03b3\u03c7\u03bf\u03c2 \u03c4\u03bf\u03c5 \u03c3\u03c5\u03bd\u03c4\u03b5\u03bb\u03b5\u03c3\u03c4\u03ae \u03c4\u03c1\u03b9\u03b2\u03ae\u03c2 \u03c3\u03c4\u03b1 \u03bc\u03b7 \u03b5\u03c0\u03b9\u03ba\u03b1\u03bb\u03c5\u03bc\u03bc\u03ad\u03bd\u03b1 \u03c7\u03b1\u03c1\u03c4\u03b9\u03ac \u03b3\u03c1\u03b1\u03c6\u03ae\u03c2 \u03b5\u03c0\u03b7\u03c1\u03b5\u03ac\u03b6\u03b5\u03b9 \u03b4\u03b9\u03ac\u03c6\u03bf\u03c1\u03bf\u03c5\u03c2 \u03b5\u03c0\u03b9\u03c7\u03b5\u03b9\u03c1\u03b7\u03c3\u03b9\u03b1\u03ba\u03bf\u03cd\u03c2 \u03c4\u03bf\u03bc\u03b5\u03af\u03c2:<\/p><ul data-start=\"4743\" data-end=\"5052\"><li data-start=\"4743\" data-end=\"4822\"><p data-start=\"4745\" data-end=\"4822\"><strong data-start=\"4745\" data-end=\"4769\">\u03a4\u03c1\u03bf\u03c6\u03bf\u03b4\u03bf\u03c3\u03af\u03b1 \u03b5\u03ba\u03c4\u03c5\u03c0\u03c9\u03c4\u03b9\u03ba\u03ce\u03bd \u03bc\u03b7\u03c7\u03b1\u03bd\u03ce\u03bd<\/strong>: \u0391\u03c0\u03bf\u03c4\u03c1\u03bf\u03c0\u03ae \u03b5\u03c3\u03c6\u03b1\u03bb\u03bc\u03ad\u03bd\u03c9\u03bd \u03c4\u03c1\u03bf\u03c6\u03bf\u03b4\u03bf\u03c3\u03b9\u03ce\u03bd \u03ba\u03b1\u03b9 \u03b1\u03cd\u03be\u03b7\u03c3\u03b7 \u03c4\u03b7\u03c2 \u03b1\u03c0\u03bf\u03b4\u03bf\u03c4\u03b9\u03ba\u03cc\u03c4\u03b7\u03c4\u03b1\u03c2 \u03ba\u03b1\u03c4\u03ac \u03c4\u03b7 \u03b4\u03b9\u03ac\u03c1\u03ba\u03b5\u03b9\u03b1 \u03c4\u03b7\u03c2 \u03b5\u03ba\u03c4\u03ad\u03bb\u03b5\u03c3\u03b7\u03c2<\/p><\/li><li data-start=\"4823\" data-end=\"4882\"><p data-start=\"4825\" data-end=\"4882\"><strong data-start=\"4825\" data-end=\"4847\">\u0391\u03c0\u03cc\u03b4\u03bf\u03c3\u03b7 \u03c6\u03c9\u03c4\u03bf\u03b1\u03bd\u03c4\u03b9\u03b3\u03c1\u03b1\u03c6\u03b9\u03ba\u03bf\u03cd \u03bc\u03b7\u03c7\u03b1\u03bd\u03ae\u03bc\u03b1\u03c4\u03bf\u03c2<\/strong>: \u0391\u03c0\u03bf\u03c6\u03cd\u03b3\u03b5\u03c4\u03b5 \u03c4\u03b7\u03bd \u03b5\u03c0\u03b9\u03ba\u03ac\u03bb\u03c5\u03c8\u03b7 \u03c6\u03cd\u03bb\u03bb\u03c9\u03bd \u03ba\u03b1\u03b9 \u03c4\u03b7\u03bd \u03b5\u03bc\u03c0\u03bb\u03bf\u03ba\u03ae<\/p><\/li><li data-start=\"4883\" data-end=\"4974\"><p data-start=\"4885\" data-end=\"4974\"><strong data-start=\"4885\" data-end=\"4911\">\u03a3\u03c5\u03c3\u03ba\u03b5\u03c5\u03b1\u03c3\u03af\u03b1 \u03bc\u03b5 \u03b4\u03c5\u03bd\u03b1\u03c4\u03cc\u03c4\u03b7\u03c4\u03b1 \u03c3\u03c4\u03bf\u03af\u03b2\u03b1\u03be\u03b7\u03c2<\/strong>: \u0395\u03be\u03b1\u03c3\u03c6\u03b1\u03bb\u03af\u03c3\u03c4\u03b5 \u03b1\u03be\u03b9\u03cc\u03c0\u03b9\u03c3\u03c4\u03b7 \u03c3\u03c4\u03bf\u03af\u03b2\u03b1\u03be\u03b7 \u03ba\u03b1\u03c4\u03ac \u03c4\u03b7 \u03bc\u03b5\u03c4\u03b1\u03c6\u03bf\u03c1\u03ac \u03ae \u03c4\u03b7\u03bd \u03ad\u03ba\u03b8\u03b5\u03c3\u03b7 \u03c3\u03c4\u03bf \u03bb\u03b9\u03b1\u03bd\u03b5\u03bc\u03c0\u03cc\u03c1\u03b9\u03bf<\/p><\/li><li data-start=\"4975\" data-end=\"5052\"><p data-start=\"4977\" data-end=\"5052\"><strong data-start=\"4977\" data-end=\"5007\">\u039a\u03bf\u03c0\u03ae \u03ba\u03b1\u03b9 \u03bc\u03b5\u03c4\u03b1\u03c4\u03c1\u03bf\u03c0\u03ae<\/strong>: \u03a5\u03c0\u03bf\u03c3\u03c4\u03ae\u03c1\u03b9\u03be\u03b7 \u03b1\u03ba\u03c1\u03b9\u03b2\u03bf\u03cd\u03c2 \u03ba\u03b1\u03c4\u03b1\u03c7\u03ce\u03c1\u03b7\u03c3\u03b7\u03c2 \u03ba\u03b1\u03b9 \u03b5\u03c5\u03b8\u03c5\u03b3\u03c1\u03ac\u03bc\u03bc\u03b9\u03c3\u03b7\u03c2<\/p><\/li><\/ul><p data-start=\"5054\" data-end=\"5222\">\u039c\u03b5 \u03c4\u03b7\u03bd \u03ba\u03b1\u03c4\u03ac\u03bb\u03bb\u03b7\u03bb\u03b7 <em data-start=\"5070\" data-end=\"5114\">\u03c3\u03c5\u03c3\u03ba\u03b5\u03c5\u03ae \u03bc\u03ad\u03c4\u03c1\u03b7\u03c3\u03b7\u03c2 \u03c4\u03bf\u03c5 \u03c3\u03c5\u03bd\u03c4\u03b5\u03bb\u03b5\u03c3\u03c4\u03ae \u03c4\u03c1\u03b9\u03b2\u03ae\u03c2<\/em>, \u03bf\u03b9 \u03ba\u03b1\u03c4\u03b1\u03c3\u03ba\u03b5\u03c5\u03b1\u03c3\u03c4\u03ad\u03c2 \u03bc\u03c0\u03bf\u03c1\u03bf\u03cd\u03bd \u03bd\u03b1 \u03b1\u03bd\u03c4\u03b1\u03c0\u03bf\u03ba\u03c1\u03b9\u03b8\u03bf\u03cd\u03bd \u03c3\u03c4\u03b9\u03c2 \u03c0\u03c1\u03bf\u03c3\u03b4\u03bf\u03ba\u03af\u03b5\u03c2 \u03b1\u03c0\u03cc\u03b4\u03bf\u03c3\u03b7\u03c2, \u03bd\u03b1 \u03bc\u03b5\u03b9\u03ce\u03c3\u03bf\u03c5\u03bd \u03c4\u03bf \u03c7\u03c1\u03cc\u03bd\u03bf \u03b4\u03b9\u03b1\u03ba\u03bf\u03c0\u03ae\u03c2 \u03bb\u03b5\u03b9\u03c4\u03bf\u03c5\u03c1\u03b3\u03af\u03b1\u03c2 \u03ba\u03b1\u03b9 \u03bd\u03b1 \u03b4\u03b9\u03b1\u03c4\u03b7\u03c1\u03ae\u03c3\u03bf\u03c5\u03bd \u03b1\u03bd\u03c4\u03b1\u03b3\u03c9\u03bd\u03b9\u03c3\u03c4\u03b9\u03ba\u03ac \u03b5\u03c0\u03af\u03c0\u03b5\u03b4\u03b1 \u03c0\u03bf\u03b9\u03cc\u03c4\u03b7\u03c4\u03b1\u03c2.<\/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-5cff387 e-flex e-con-boxed e-con e-parent\" data-id=\"5cff387\" 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-9c0a1cd elementor-widget elementor-widget-heading\" data-id=\"9c0a1cd\" data-element_type=\"widget\" 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\u03bc\u03c0\u03ad\u03c1\u03b1\u03c3\u03bc\u03b1<\/h2>\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-878087c e-flex e-con-boxed e-con e-parent\" data-id=\"878087c\" 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-c7a95c2 elementor-widget elementor-widget-text-editor\" data-id=\"c7a95c2\" 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 data-start=\"5244\" data-end=\"5694\">\u03a4\u03bf <strong data-start=\"5248\" data-end=\"5297\">\u03b4\u03bf\u03ba\u03b9\u03bc\u03ae \u03c3\u03c5\u03bd\u03c4\u03b5\u03bb\u03b5\u03c3\u03c4\u03ae \u03c4\u03c1\u03b9\u03b2\u03ae\u03c2 \u03c7\u03c9\u03c1\u03af\u03c2 \u03b5\u03c0\u03b9\u03ba\u03ac\u03bb\u03c5\u03c8\u03b7<\/strong> \u03bc\u03b5 \u03c4\u03b7 \u03c7\u03c1\u03ae\u03c3\u03b7 \u03c4\u03bf\u03c5 \u03c0\u03c1\u03bf\u03c4\u03cd\u03c0\u03bf\u03c5 TAPPI T549 \u03c0\u03b1\u03c1\u03ad\u03c7\u03b5\u03b9 \u03ad\u03bd\u03b1 \u03b1\u03be\u03b9\u03cc\u03c0\u03b9\u03c3\u03c4\u03bf \u03c0\u03bb\u03b1\u03af\u03c3\u03b9\u03bf \u03b3\u03b9\u03b1 \u03c4\u03b7\u03bd \u03b1\u03be\u03b9\u03bf\u03bb\u03cc\u03b3\u03b7\u03c3\u03b7 \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 \u03ba\u03b1\u03c4\u03ac \u03c4\u03b7 \u03b4\u03b9\u03ac\u03c1\u03ba\u03b5\u03b9\u03b1 \u03c4\u03c5\u03c0\u03b9\u03ba\u03ce\u03bd \u03bb\u03b5\u03b9\u03c4\u03bf\u03c5\u03c1\u03b3\u03b9\u03ce\u03bd. \u0391\u03ba\u03bf\u03bb\u03bf\u03c5\u03b8\u03ce\u03bd\u03c4\u03b1\u03c2 \u03c4\u03b9\u03c2 \u03ba\u03b1\u03c4\u03ac\u03bb\u03bb\u03b7\u03bb\u03b5\u03c2 \u03b4\u03b9\u03b1\u03b4\u03b9\u03ba\u03b1\u03c3\u03af\u03b5\u03c2, \u03c7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03b9\u03ce\u03bd\u03c4\u03b1\u03c2 \u03b2\u03b1\u03b8\u03bc\u03bf\u03bd\u03bf\u03bc\u03b7\u03bc\u03ad\u03bd\u03bf \u03b5\u03be\u03bf\u03c0\u03bb\u03b9\u03c3\u03bc\u03cc \u03cc\u03c0\u03c9\u03c2 <strong data-start=\"5499\" data-end=\"5526\">Cell Instruments COF-01<\/strong>, \u03ba\u03b1\u03b9 \u03c4\u03b7 \u03b4\u03b9\u03b1\u03c4\u03ae\u03c1\u03b7\u03c3\u03b7 \u03c4\u03c9\u03bd \u03c4\u03c5\u03c0\u03bf\u03c0\u03bf\u03b9\u03b7\u03bc\u03ad\u03bd\u03c9\u03bd \u03c0\u03b5\u03c1\u03b9\u03b2\u03b1\u03bb\u03bb\u03bf\u03bd\u03c4\u03b9\u03ba\u03ce\u03bd \u03c3\u03c5\u03bd\u03b8\u03b7\u03ba\u03ce\u03bd, \u03bf\u03b9 \u03ba\u03b1\u03c4\u03b1\u03c3\u03ba\u03b5\u03c5\u03b1\u03c3\u03c4\u03ad\u03c2 \u03c7\u03b1\u03c1\u03c4\u03b9\u03bf\u03cd \u03ba\u03b1\u03b9 \u03bf\u03b9 \u03b5\u03c0\u03b9\u03b8\u03b5\u03c9\u03c1\u03b7\u03c4\u03ad\u03c2 \u03c0\u03bf\u03b9\u03cc\u03c4\u03b7\u03c4\u03b1\u03c2 \u03bc\u03c0\u03bf\u03c1\u03bf\u03cd\u03bd \u03bd\u03b1 \u03b5\u03be\u03b1\u03c3\u03c6\u03b1\u03bb\u03af\u03c3\u03bf\u03c5\u03bd \u03c4\u03b1 \u03b2\u03ad\u03bb\u03c4\u03b9\u03c3\u03c4\u03b1 \u03c7\u03b1\u03c1\u03b1\u03ba\u03c4\u03b7\u03c1\u03b9\u03c3\u03c4\u03b9\u03ba\u03ac \u03c4\u03c1\u03b9\u03b2\u03ae\u03c2 \u03b3\u03b9\u03b1 \u03c0\u03c1\u03b1\u03b3\u03bc\u03b1\u03c4\u03b9\u03ba\u03ad\u03c2 \u03b5\u03c6\u03b1\u03c1\u03bc\u03bf\u03b3\u03ad\u03c2.<\/p><p data-start=\"5696\" data-end=\"5805\">\u0393\u03b9\u03b1 \u03c5\u03c0\u03bf\u03c3\u03c4\u03ae\u03c1\u03b9\u03be\u03b7 \u03b1\u03c0\u03cc \u03b5\u03b9\u03b4\u03b9\u03ba\u03bf\u03cd\u03c2 \u03ae \u03b3\u03b9\u03b1 \u03bd\u03b1 \u03bc\u03ac\u03b8\u03b5\u03c4\u03b5 \u03c0\u03b5\u03c1\u03b9\u03c3\u03c3\u03cc\u03c4\u03b5\u03c1\u03b1 \u03c3\u03c7\u03b5\u03c4\u03b9\u03ba\u03ac \u03bc\u03b5 \u03c4\u03b9\u03c2 \u03bb\u03cd\u03c3\u03b5\u03b9\u03c2 \u03bc\u03b1\u03c2 \u03b3\u03b9\u03b1 \u03b4\u03bf\u03ba\u03b9\u03bc\u03ad\u03c2 \u03c4\u03c1\u03b9\u03b2\u03ae\u03c2, <strong data-start=\"5770\" data-end=\"5804\">\u03b5\u03c0\u03b9\u03ba\u03bf\u03b9\u03bd\u03c9\u03bd\u03ae\u03c3\u03c4\u03b5 \u03bc\u03b5 \u03c4\u03bf Cell Instruments \u03c3\u03ae\u03bc\u03b5\u03c1\u03b1<\/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\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p>\u0397 \u03c3\u03b7\u03bc\u03b1\u03c3\u03af\u03b1 \u03c4\u03c9\u03bd \u03b4\u03bf\u03ba\u03b9\u03bc\u03ce\u03bd \u03c4\u03c1\u03b9\u03b2\u03ae\u03c2 \u03b3\u03b9\u03b1 \u03c7\u03b1\u03c1\u03c4\u03b9\u03ac \u03b3\u03c1\u03b1\u03c6\u03ae\u03c2 \u03c7\u03c9\u03c1\u03af\u03c2 \u03b5\u03c0\u03b9\u03ba\u03ac\u03bb\u03c5\u03c8\u03b7 \u039f \u03c3\u03c5\u03bd\u03c4\u03b5\u03bb\u03b5\u03c3\u03c4\u03ae\u03c2 \u03c4\u03c1\u03b9\u03b2\u03ae\u03c2 (COF) \u03b5\u03af\u03bd\u03b1\u03b9 \u03bc\u03b9\u03b1 \u03ba\u03c1\u03af\u03c3\u03b9\u03bc\u03b7 \u03b9\u03b4\u03b9\u03cc\u03c4\u03b7\u03c4\u03b1 \u03c0\u03bf\u03c5 \u03b5\u03c0\u03b7\u03c1\u03b5\u03ac\u03b6\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\u03b5 \u03bc\u03b7\u03c7\u03b1\u03bd\u03b9\u03c3\u03bc\u03bf\u03cd\u03c2 \u03c4\u03c1\u03bf\u03c6\u03bf\u03b4\u03bf\u03c3\u03af\u03b1\u03c2 \u03ba\u03b1\u03b9 \u03bc\u03b5\u03c4\u03b1\u03c6\u03bf\u03c1\u03ac\u03c2 \u03c5\u03c8\u03b7\u03bb\u03ae\u03c2 \u03c4\u03b1\u03c7\u03cd\u03c4\u03b7\u03c4\u03b1\u03c2. \u0397 \u03c5\u03c0\u03b5\u03c1\u03b2\u03bf\u03bb\u03b9\u03ba\u03ae \u03c4\u03c1\u03b9\u03b2\u03ae \u03bc\u03c0\u03bf\u03c1\u03b5\u03af \u03bd\u03b1 \u03c0\u03c1\u03bf\u03ba\u03b1\u03bb\u03ad\u03c3\u03b5\u03b9 \u03b5\u03bc\u03c0\u03bb\u03bf\u03ba\u03ae \u03c7\u03b1\u03c1\u03c4\u03b9\u03bf\u03cd- \u03b7 \u03c0\u03bf\u03bb\u03cd \u03bc\u03b9\u03ba\u03c1\u03ae \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 \u03ae \u03bf\u03bb\u03af\u03c3\u03b8\u03b7\u03c3\u03b7. \u03a4\u03b1 \u03c7\u03b1\u03c1\u03c4\u03b9\u03ac \u03b3\u03c1\u03b1\u03c6\u03ae\u03c2 \u03c7\u03c9\u03c1\u03af\u03c2 \u03b5\u03c0\u03b9\u03ba\u03ac\u03bb\u03c5\u03c8\u03b7, \u03c0\u03bf\u03c5 \u03c7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03b9\u03bf\u03cd\u03bd\u03c4\u03b1\u03b9 \u03c3\u03c5\u03c7\u03bd\u03ac \u03c3\u03b5 \u03b5\u03c0\u03b9\u03c4\u03c1\u03b1\u03c0\u03ad\u03b6\u03b9\u03bf\u03c5\u03c2 \u03b5\u03ba\u03c4\u03c5\u03c0\u03c9\u03c4\u03ad\u03c2, \u03c6\u03c9\u03c4\u03bf\u03b1\u03bd\u03c4\u03b9\u03b3\u03c1\u03b1\u03c6\u03b9\u03ba\u03ac \u03bc\u03b7\u03c7\u03b1\u03bd\u03ae\u03bc\u03b1\u03c4\u03b1 \u03ba\u03b1\u03b9 \u03c3\u03b7\u03bc\u03b5\u03b9\u03c9\u03bc\u03b1\u03c4\u03ac\u03c1\u03b9\u03b1, [...]<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-598","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.7 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Method for Uncoated Writing Coefficient of Friction Test - Coefficient of Friction Tester<\/title>\n<meta name=\"description\" content=\"How to perform the uncoated writing coefficient of friction test. 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