{"id":430,"date":"2025-05-08T03:50:49","date_gmt":"2025-05-08T03:50:49","guid":{"rendered":"https:\/\/www.coefficientfriction.com\/?p=430"},"modified":"2025-05-08T03:50:50","modified_gmt":"2025-05-08T03:50:50","slug":"astm-friction-test","status":"publish","type":"post","link":"https:\/\/www.coefficientfriction.com\/el\/astm-friction-test","title":{"rendered":"\u0394\u03bf\u03ba\u03b9\u03bc\u03ae \u03c4\u03c1\u03b9\u03b2\u03ae\u03c2 ASTM - \u039c\u03ad\u03b8\u03bf\u03b4\u03bf\u03b9 \u03b4\u03bf\u03ba\u03b9\u03bc\u03ae\u03c2 COF \u03b3\u03b9\u03b1 \u03c7\u03b1\u03c1\u03c4\u03af, \u03c6\u03b9\u03bb\u03bc \u03ba\u03b1\u03b9 \u03c3\u03c5\u03c3\u03ba\u03b5\u03c5\u03b1\u03c3\u03af\u03b1"},"content":{"rendered":"<h2 class=\"wp-block-heading\">\u0395\u03b9\u03c3\u03b1\u03b3\u03c9\u03b3\u03ae: \u03a4\u03b9 \u03b5\u03af\u03bd\u03b1\u03b9 \u03b7 \u03b4\u03bf\u03ba\u03b9\u03bc\u03ae \u03c4\u03c1\u03b9\u03b2\u03ae\u03c2 ASTM \u03ba\u03b1\u03b9 \u03b3\u03b9\u03b1\u03c4\u03af \u03ad\u03c7\u03b5\u03b9 \u03c3\u03b7\u03bc\u03b1\u03c3\u03af\u03b1<\/h2>\n\n\n\n<p>\u03a4\u03bf <em>\u0394\u03bf\u03ba\u03b9\u03bc\u03ae \u03c4\u03c1\u03b9\u03b2\u03ae\u03c2 ASTM<\/em> \u03b5\u03af\u03bd\u03b1\u03b9 \u03b6\u03c9\u03c4\u03b9\u03ba\u03ae\u03c2 \u03c3\u03b7\u03bc\u03b1\u03c3\u03af\u03b1\u03c2 \u03b3\u03b9\u03b1 \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\u03b1 \u03c5\u03bb\u03b9\u03ba\u03ac \u03b1\u03bb\u03bb\u03b7\u03bb\u03b5\u03c0\u03b9\u03b4\u03c1\u03bf\u03cd\u03bd \u03cc\u03c4\u03b1\u03bd \u03ad\u03c1\u03c7\u03bf\u03bd\u03c4\u03b1\u03b9 \u03c3\u03b5 \u03b5\u03c0\u03b1\u03c6\u03ae, \u03b9\u03b4\u03af\u03c9\u03c2 \u03c3\u03b5 \u03c3\u03c5\u03bd\u03b8\u03ae\u03ba\u03b5\u03c2 \u03bf\u03bb\u03af\u03c3\u03b8\u03b7\u03c3\u03b7\u03c2. \u0397 \u03b4\u03bf\u03ba\u03b9\u03bc\u03ae \u03b1\u03c5\u03c4\u03ae \u03b4\u03b9\u03b1\u03b4\u03c1\u03b1\u03bc\u03b1\u03c4\u03af\u03b6\u03b5\u03b9 \u03b6\u03c9\u03c4\u03b9\u03ba\u03cc \u03c1\u03cc\u03bb\u03bf \u03c3\u03c4\u03b7\u03bd \u03b1\u03be\u03b9\u03bf\u03bb\u03cc\u03b3\u03b7\u03c3\u03b7 \u03c4\u03b7\u03c2 <em>static<\/em> \u03ba\u03b1\u03b9 <em>\u03ba\u03b9\u03bd\u03b7\u03c4\u03b9\u03ba\u03bf\u03af \u03c3\u03c5\u03bd\u03c4\u03b5\u03bb\u03b5\u03c3\u03c4\u03ad\u03c2 \u03c4\u03c1\u03b9\u03b2\u03ae\u03c2<\/em> \u03c5\u03bb\u03b9\u03ba\u03ce\u03bd \u03cc\u03c0\u03c9\u03c2 \u03c0\u03bb\u03b1\u03c3\u03c4\u03b9\u03ba\u03ad\u03c2 \u03bc\u03b5\u03bc\u03b2\u03c1\u03ac\u03bd\u03b5\u03c2, \u03c7\u03b1\u03c1\u03c4\u03af, \u03c7\u03b1\u03c1\u03c4\u03cc\u03bd\u03b9 \u03ba\u03b1\u03b9 \u03bc\u03b7 \u03c5\u03c6\u03b1\u03c3\u03bc\u03ad\u03bd\u03b1 \u03c5\u03c6\u03ac\u03c3\u03bc\u03b1\u03c4\u03b1. \u03a3\u03c4\u03b9\u03c2 \u03b2\u03b9\u03bf\u03bc\u03b7\u03c7\u03b1\u03bd\u03af\u03b5\u03c2 \u03c3\u03c5\u03c3\u03ba\u03b5\u03c5\u03b1\u03c3\u03af\u03b1\u03c2, \u03b9\u03b1\u03c4\u03c1\u03b9\u03ba\u03ae\u03c2 \u03ba\u03b1\u03b9 \u03b7\u03bb\u03b5\u03ba\u03c4\u03c1\u03bf\u03bd\u03b9\u03ba\u03ae\u03c2, \u03bf\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 <em>\u03b1\u03c0\u03cc\u03b4\u03bf\u03c3\u03b7 \u03c4\u03bf\u03c5 \u03c0\u03c1\u03bf\u03ca\u03cc\u03bd\u03c4\u03bf\u03c2, \u03b4\u03c5\u03bd\u03b1\u03c4\u03cc\u03c4\u03b7\u03c4\u03b1 \u03ba\u03b1\u03c4\u03b5\u03c1\u03b3\u03b1\u03c3\u03af\u03b1\u03c2,<\/em> \u03ba\u03b1\u03b9 <em>\u03b1\u03c3\u03c6\u03ac\u03bb\u03b5\u03b9\u03b1 \u03c4\u03bf\u03c5 \u03c7\u03c1\u03ae\u03c3\u03c4\u03b7<\/em>. \u0397 \u03ba\u03b1\u03c4\u03b1\u03bd\u03cc\u03b7\u03c3\u03b7 \u03c4\u03bf\u03c5 \u03c4\u03c1\u03cc\u03c0\u03bf\u03c5 \u03c3\u03c9\u03c3\u03c4\u03ae\u03c2 \u03b4\u03b9\u03b5\u03be\u03b1\u03b3\u03c9\u03b3\u03ae\u03c2 \u03ba\u03b1\u03b9 \u03b5\u03c1\u03bc\u03b7\u03bd\u03b5\u03af\u03b1\u03c2 \u03b1\u03c5\u03c4\u03ce\u03bd \u03c4\u03c9\u03bd \u03b4\u03bf\u03ba\u03b9\u03bc\u03ce\u03bd \u03b4\u03b9\u03b1\u03c3\u03c6\u03b1\u03bb\u03af\u03b6\u03b5\u03b9 \u03c4\u03b7\u03bd \u03c0\u03bf\u03b9\u03cc\u03c4\u03b7\u03c4\u03b1, \u03c4\u03b7 \u03c3\u03c5\u03bd\u03ad\u03c0\u03b5\u03b9\u03b1 \u03ba\u03b1\u03b9 \u03c4\u03b7 \u03c3\u03c5\u03bc\u03bc\u03cc\u03c1\u03c6\u03c9\u03c3\u03b7 \u03bc\u03b5 \u03c4\u03b1 \u03c0\u03b1\u03b3\u03ba\u03cc\u03c3\u03bc\u03b9\u03b1 \u03c0\u03c1\u03cc\u03c4\u03c5\u03c0\u03b1.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">ASTM D1894: \u0394\u03bf\u03ba\u03b9\u03bc\u03ad\u03c2 \u03c4\u03c1\u03b9\u03b2\u03ae\u03c2 \u03c0\u03bb\u03b1\u03c3\u03c4\u03b9\u03ba\u03ce\u03bd \u03c4\u03b1\u03b9\u03bd\u03b9\u03ce\u03bd \u03ba\u03b1\u03b9 \u03c6\u03cd\u03bb\u03bb\u03c9\u03bd<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u03a3\u03ba\u03bf\u03c0\u03cc\u03c2 \u03ba\u03b1\u03b9 \u03c3\u03c5\u03bd\u03ac\u03c6\u03b5\u03b9\u03b1 \u03bc\u03b5 \u03c4\u03bf\u03bd \u03ba\u03bb\u03ac\u03b4\u03bf<\/h3>\n\n\n\n<p><strong><a href=\"https:\/\/www.coefficientfriction.com\/el\/astm-d1894\/\" target=\"_blank\" rel=\"noreferrer noopener\">ASTM D1894<\/a><\/strong>\u2014<em>\u03a0\u03c1\u03cc\u03c4\u03c5\u03c0\u03b7 \u03bc\u03ad\u03b8\u03bf\u03b4\u03bf\u03c2 \u03b4\u03bf\u03ba\u03b9\u03bc\u03ae\u03c2 \u03b3\u03b9\u03b1 \u03c4\u03bf\u03c5\u03c2 \u03c3\u03c4\u03b1\u03c4\u03b9\u03ba\u03bf\u03cd\u03c2 \u03ba\u03b1\u03b9 \u03ba\u03b9\u03bd\u03b7\u03c4\u03b9\u03ba\u03bf\u03cd\u03c2 \u03c3\u03c5\u03bd\u03c4\u03b5\u03bb\u03b5\u03c3\u03c4\u03ad\u03c2 \u03c4\u03c1\u03b9\u03b2\u03ae\u03c2 \u03c0\u03bb\u03b1\u03c3\u03c4\u03b9\u03ba\u03ce\u03bd \u03c4\u03b1\u03b9\u03bd\u03b9\u03ce\u03bd \u03ba\u03b1\u03b9 \u03c6\u03cd\u03bb\u03bb\u03c9\u03bd<\/em>-\u03c0\u03b1\u03c1\u03ad\u03c7\u03b5\u03b9 \u03ad\u03bd\u03b1 <strong>\u03b1\u03be\u03b9\u03cc\u03c0\u03b9\u03c3\u03c4\u03b7 \u03b4\u03b9\u03b1\u03b4\u03b9\u03ba\u03b1\u03c3\u03af\u03b1<\/strong> \u03bd\u03b1 \u03b1\u03be\u03b9\u03bf\u03bb\u03bf\u03b3\u03ae\u03c3\u03b5\u03b9 \u03c4\u03bf <strong>\u03b9\u03b4\u03b9\u03cc\u03c4\u03b7\u03c4\u03b5\u03c2 \u03bf\u03bb\u03af\u03c3\u03b8\u03b7\u03c3\u03b7\u03c2<\/strong> \u03c0\u03bb\u03b1\u03c3\u03c4\u03b9\u03ba\u03ce\u03bd \u03c5\u03bb\u03b9\u03ba\u03ce\u03bd. \u0391\u03c5\u03c4\u03ad\u03c2 \u03bf\u03b9 \u03b9\u03b4\u03b9\u03cc\u03c4\u03b7\u03c4\u03b5\u03c2 \u03b5\u03af\u03bd\u03b1\u03b9 \u03b6\u03c9\u03c4\u03b9\u03ba\u03ae\u03c2 \u03c3\u03b7\u03bc\u03b1\u03c3\u03af\u03b1\u03c2 \u03b3\u03b9\u03b1 <strong>\u03b5\u03c6\u03b1\u03c1\u03bc\u03bf\u03b3\u03ad\u03c2 \u03c3\u03c5\u03c3\u03ba\u03b5\u03c5\u03b1\u03c3\u03af\u03b1\u03c2 \u03c4\u03b1\u03b9\u03bd\u03b9\u03ce\u03bd<\/strong>, \u03cc\u03c0\u03bf\u03c5 <strong>\u03b5\u03c5\u03ba\u03bf\u03bb\u03af\u03b1 \u03c7\u03b5\u03b9\u03c1\u03b9\u03c3\u03bc\u03bf\u03cd<\/strong>, <strong>\u03b4\u03c5\u03bd\u03b1\u03c4\u03cc\u03c4\u03b7\u03c4\u03b1 \u03ba\u03b1\u03c4\u03b5\u03c1\u03b3\u03b1\u03c3\u03af\u03b1\u03c2<\/strong>, \u03ba\u03b1\u03b9 <strong>\u03b4\u03c5\u03bd\u03b1\u03c4\u03cc\u03c4\u03b7\u03c4\u03b1 \u03c3\u03c4\u03bf\u03af\u03b2\u03b1\u03be\u03b7\u03c2<\/strong> \u03b5\u03c0\u03b7\u03c1\u03b5\u03ac\u03b6\u03bf\u03c5\u03bd \u03ac\u03bc\u03b5\u03c3\u03b1 \u03c4\u03b7\u03bd \u03ba\u03b1\u03c4\u03b1\u03c3\u03ba\u03b5\u03c5\u03ae \u03ba\u03b1\u03b9 \u03c4\u03b7\u03bd \u03b5\u03bc\u03c0\u03b5\u03b9\u03c1\u03af\u03b1 \u03c4\u03c9\u03bd \u03ba\u03b1\u03c4\u03b1\u03bd\u03b1\u03bb\u03c9\u03c4\u03ce\u03bd.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u039c\u03b7\u03c7\u03b1\u03bd\u03b9\u03c3\u03bc\u03cc\u03c2 \u03b4\u03bf\u03ba\u03b9\u03bc\u03ae\u03c2 \u03ba\u03b1\u03b9 \u03c3\u03b7\u03bc\u03b1\u03c3\u03af\u03b1<\/h3>\n\n\n\n<p>\u0397 \u03bc\u03ad\u03b8\u03bf\u03b4\u03bf\u03c2 \u03c0\u03b5\u03c1\u03b9\u03bb\u03b1\u03bc\u03b2\u03ac\u03bd\u03b5\u03b9 \u03c4\u03b7 \u03bc\u03ad\u03c4\u03c1\u03b7\u03c3\u03b7 \u03c4\u03b7\u03c2 \u03b4\u03cd\u03bd\u03b1\u03bc\u03b7\u03c2 \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 \u03ba\u03b1\u03b9 \u03c4\u03b7 \u03b4\u03b9\u03b1\u03c4\u03ae\u03c1\u03b7\u03c3\u03b7 \u03c4\u03b7\u03c2 \u03bf\u03bb\u03af\u03c3\u03b8\u03b7\u03c3\u03b7\u03c2 \u03bc\u03b5\u03c4\u03b1\u03be\u03cd \u03b4\u03cd\u03bf \u03b5\u03c0\u03b9\u03c6\u03b1\u03bd\u03b5\u03b9\u03ce\u03bd - \u03b5\u03af\u03c4\u03b5 <strong>\u03c6\u03b9\u03bb\u03bc \u03c3\u03b5 \u03c6\u03b9\u03bb\u03bc<\/strong> \u03ae <strong>\u03c4\u03b1\u03b9\u03bd\u03af\u03b1-\u03c3\u03b5-\u03ac\u03bb\u03bb\u03bf-\u03c5\u03bb\u03b9\u03ba\u03cc<\/strong>-\u03c7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03b9\u03ce\u03bd\u03c4\u03b1\u03c2 \u03ad\u03bd\u03b1 \u03c4\u03c5\u03c0\u03bf\u03c0\u03bf\u03b9\u03b7\u03bc\u03ad\u03bd\u03bf <strong>\u03c3\u03c5\u03c3\u03ba\u03b5\u03c5\u03ae \u03ad\u03bb\u03ba\u03b7\u03b8\u03c1\u03bf \u03ba\u03b1\u03b9 \u03b1\u03b5\u03c1\u03bf\u03c0\u03bb\u03ac\u03bd\u03bf<\/strong>.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u03a3\u03c4\u03b1\u03c4\u03b9\u03ba\u03ae COF<\/strong> \u03b1\u03bd\u03c4\u03b9\u03c0\u03c1\u03bf\u03c3\u03c9\u03c0\u03b5\u03cd\u03b5\u03b9 \u03c4\u03b7 \u03b4\u03cd\u03bd\u03b1\u03bc\u03b7 \u03c0\u03c1\u03bf\u03c2 <strong>\u03ad\u03bd\u03b1\u03c1\u03be\u03b7 \u03ba\u03af\u03bd\u03b7\u03c3\u03b7\u03c2<\/strong>.<\/li>\n\n\n\n<li><strong>\u039a\u03b9\u03bd\u03b7\u03c4\u03b9\u03ba\u03ae COF<\/strong> \u03b1\u03bd\u03c4\u03b1\u03bd\u03b1\u03ba\u03bb\u03ac \u03c4\u03b7 \u03b4\u03cd\u03bd\u03b1\u03bc\u03b7 \u03c0\u03bf\u03c5 <strong>\u03bd\u03b1 \u03c5\u03c0\u03bf\u03c3\u03c4\u03b7\u03c1\u03af\u03be\u03b5\u03b9 \u03c4\u03b7\u03bd \u03ba\u03af\u03bd\u03b7\u03c3\u03b7<\/strong> \u03bc\u03cc\u03bb\u03b9\u03c2 \u03b1\u03c1\u03c7\u03af\u03c3\u03b5\u03b9 \u03b7 \u03bf\u03bb\u03af\u03c3\u03b8\u03b7\u03c3\u03b7.<\/li>\n<\/ul>\n\n\n\n<p>\u039f\u03b9 \u03b2\u03b1\u03c3\u03b9\u03ba\u03ad\u03c2 \u03b5\u03ba\u03c4\u03b9\u03bc\u03ae\u03c3\u03b5\u03b9\u03c2 \u03c0\u03bf\u03c5 \u03c0\u03b5\u03c1\u03b9\u03b3\u03c1\u03ac\u03c6\u03bf\u03bd\u03c4\u03b1\u03b9 \u03c3\u03c4\u03bf ASTM D1894 \u03c0\u03b5\u03c1\u03b9\u03bb\u03b1\u03bc\u03b2\u03ac\u03bd\u03bf\u03c5\u03bd:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u03a0\u03c1\u03bf\u03c3\u03b8\u03b5\u03c4\u03b9\u03ba\u03ae \u03c3\u03c5\u03bc\u03c0\u03b5\u03c1\u03b9\u03c6\u03bf\u03c1\u03ac<\/strong>: \u03a4\u03b1\u03b9\u03bd\u03af\u03b5\u03c2 \u03cc\u03c0\u03c9\u03c2 <strong>\u03c0\u03bf\u03bb\u03c5\u03b1\u03b9\u03b8\u03c5\u03bb\u03ad\u03bd\u03b9\u03bf<\/strong> \u03c3\u03c5\u03c7\u03bd\u03ac \u03c0\u03b5\u03c1\u03b9\u03bb\u03b1\u03bc\u03b2\u03ac\u03bd\u03bf\u03c5\u03bd \u03c0\u03c1\u03cc\u03c3\u03b8\u03b5\u03c4\u03b1 \u03bf\u03bb\u03af\u03c3\u03b8\u03b7\u03c3\u03b7\u03c2 \u03c0\u03bf\u03c5 <strong>\u03ac\u03bd\u03b8\u03b9\u03c3\u03b7 \u03c3\u03c4\u03b7\u03bd \u03b5\u03c0\u03b9\u03c6\u03ac\u03bd\u03b5\u03b9\u03b1<\/strong>, \u03b5\u03c0\u03b7\u03c1\u03b5\u03ac\u03b6\u03bf\u03bd\u03c4\u03b1\u03c2 \u03c4\u03b7 \u03bb\u03b9\u03c0\u03b1\u03bd\u03c4\u03b9\u03ba\u03cc\u03c4\u03b7\u03c4\u03b1 \u03c4\u03b7\u03c2 \u03b5\u03c0\u03b9\u03c6\u03ac\u03bd\u03b5\u03b9\u03b1\u03c2 \u03bc\u03b5 \u03c4\u03b7\u03bd \u03c0\u03ac\u03c1\u03bf\u03b4\u03bf \u03c4\u03bf\u03c5 \u03c7\u03c1\u03cc\u03bd\u03bf\u03c5.<\/li>\n\n\n\n<li><strong>\u03a0\u03b5\u03c1\u03b9\u03b2\u03b1\u03bb\u03bb\u03bf\u03bd\u03c4\u03b9\u03ba\u03ae \u03b5\u03c5\u03b1\u03b9\u03c3\u03b8\u03b7\u03c3\u03af\u03b1<\/strong>: \u039f\u03b9 \u03b9\u03b4\u03b9\u03cc\u03c4\u03b7\u03c4\u03b5\u03c2 \u03c4\u03c1\u03b9\u03b2\u03ae\u03c2 \u03b1\u03bb\u03bb\u03ac\u03b6\u03bf\u03c5\u03bd \u03bc\u03b5 <strong>\u03b8\u03b5\u03c1\u03bc\u03bf\u03ba\u03c1\u03b1\u03c3\u03af\u03b1, \u03c5\u03b3\u03c1\u03b1\u03c3\u03af\u03b1<\/strong>, \u03ba\u03b1\u03b9 <strong>\u03b3\u03ae\u03c1\u03b1\u03bd\u03c3\u03b7<\/strong>, \u03bf\u03c0\u03cc\u03c4\u03b5 \u03b7 \u03c3\u03c5\u03bd\u03ad\u03c0\u03b5\u03b9\u03b1 \u03c3\u03c4\u03b9\u03c2 \u03c3\u03c5\u03bd\u03b8\u03ae\u03ba\u03b5\u03c2 \u03b4\u03bf\u03ba\u03b9\u03bc\u03ae\u03c2 \u03b5\u03af\u03bd\u03b1\u03b9 \u03ba\u03c1\u03af\u03c3\u03b9\u03bc\u03b7.<\/li>\n\n\n\n<li><strong>\u039a\u03b1\u03c4\u03b5\u03c5\u03b8\u03c5\u03bd\u03c4\u03b9\u03ba\u03ae \u03c3\u03c5\u03bd\u03ad\u03c0\u03b5\u03b9\u03b1<\/strong>: \u0397 \u03bc\u03ad\u03b8\u03bf\u03b4\u03bf\u03c2 \u03c3\u03c5\u03bd\u03b9\u03c3\u03c4\u03ac \u03b4\u03bf\u03ba\u03b9\u03bc\u03ad\u03c2 \u03c3\u03c4\u03bf <strong>\u03ba\u03b1\u03c4\u03b5\u03cd\u03b8\u03c5\u03bd\u03c3\u03b7 \u03bc\u03b7\u03c7\u03b1\u03bd\u03ae\u03c2 (MD)<\/strong> \u03b3\u03b9\u03b1 \u03bd\u03b1 \u03b5\u03be\u03b1\u03c3\u03c6\u03b1\u03bb\u03b9\u03c3\u03c4\u03b5\u03af \u03b7 \u03b1\u03bd\u03b1\u03c0\u03b1\u03c1\u03b1\u03b3\u03c9\u03b3\u03b9\u03bc\u03cc\u03c4\u03b7\u03c4\u03b1.<\/li>\n\n\n\n<li><strong>\u039a\u03b1\u03c4\u03ac\u03c3\u03c4\u03b1\u03c3\u03b7 \u03b5\u03c0\u03b9\u03c6\u03ac\u03bd\u03b5\u03b9\u03b1\u03c2 \u03ba\u03b1\u03b9 \u03bc\u03cc\u03bb\u03c5\u03bd\u03c3\u03b7<\/strong>: \u0397 \u03b1\u03bd\u03b8\u03c1\u03ce\u03c0\u03b9\u03bd\u03b7 \u03b5\u03c0\u03b1\u03c6\u03ae \u03ae \u03b7 \u03b1\u03bd\u03b1\u03b4\u03af\u03c0\u03bb\u03c9\u03c3\u03b7 \u03bc\u03c0\u03bf\u03c1\u03b5\u03af \u03bd\u03b1 \u03b1\u03bb\u03bb\u03bf\u03b9\u03ce\u03c3\u03b5\u03b9 \u03c4\u03b1 \u03b1\u03c0\u03bf\u03c4\u03b5\u03bb\u03ad\u03c3\u03bc\u03b1\u03c4\u03b1- \u03c4\u03b1 \u03c6\u03b9\u03bb\u03bc \u03c0\u03c1\u03ad\u03c0\u03b5\u03b9 \u03bd\u03b1 \u03c7\u03b5\u03b9\u03c1\u03af\u03b6\u03bf\u03bd\u03c4\u03b1\u03b9 \u03bc\u03b5 \u03c0\u03c1\u03bf\u03c3\u03bf\u03c7\u03ae \u03ba\u03b1\u03b9 \u03bd\u03b1 \u03c4\u03bf\u03c0\u03bf\u03b8\u03b5\u03c4\u03bf\u03cd\u03bd\u03c4\u03b1\u03b9 \u03bf\u03bc\u03b1\u03bb\u03ac.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\u039a\u03cd\u03c1\u03b9\u03b1 \u03c3\u03b7\u03bc\u03b5\u03af\u03b1 \u03c4\u03b7\u03c2 \u03b4\u03b9\u03b1\u03b4\u03b9\u03ba\u03b1\u03c3\u03af\u03b1\u03c2<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u03a0\u03c1\u03bf\u03b5\u03c4\u03bf\u03b9\u03bc\u03b1\u03c3\u03af\u03b1 \u03b4\u03b5\u03af\u03b3\u03bc\u03b1\u03c4\u03bf\u03c2<\/strong>: \u0388\u03bd\u03b1 \u03c6\u03b9\u03bb\u03bc 250 mm x 130 mm \u03c3\u03c4\u03b5\u03c1\u03b5\u03ce\u03bd\u03b5\u03c4\u03b1\u03b9 \u03b5\u03c0\u03af\u03c0\u03b5\u03b4\u03b1 \u03c3\u03c4\u03bf \u03b5\u03c0\u03af\u03c0\u03b5\u03b4\u03bf \u03b4\u03bf\u03ba\u03b9\u03bc\u03ae\u03c2- \u03ad\u03bd\u03b1 \u03c4\u03b5\u03c4\u03c1\u03ac\u03b3\u03c9\u03bd\u03bf 120 mm \u03c4\u03bf\u03c0\u03bf\u03b8\u03b5\u03c4\u03b5\u03af\u03c4\u03b1\u03b9 \u03c3\u03b5 \u03ad\u03bd\u03b1 \u03ad\u03bb\u03ba\u03b7\u03b8\u03c1\u03bf.<\/li>\n\n\n\n<li><strong>\u03a0\u03c1\u03bf\u03c3\u03b1\u03bd\u03b1\u03c4\u03bf\u03bb\u03b9\u03c3\u03bc\u03cc\u03c2 \u03c4\u03bf\u03c0\u03bf\u03b8\u03ad\u03c4\u03b7\u03c3\u03b7\u03c2<\/strong>: \u03a0\u03ac\u03bd\u03c4\u03b1 \u03bd\u03b1 \u03c4\u03b1\u03b9\u03c1\u03b9\u03ac\u03b6\u03bf\u03c5\u03bd \u03bf\u03b9 \u03ba\u03b1\u03c4\u03b5\u03c5\u03b8\u03cd\u03bd\u03c3\u03b5\u03b9\u03c2 \u03c4\u03b7\u03c2 \u03bc\u03b7\u03c7\u03b1\u03bd\u03ae\u03c2 \u03c4\u03cc\u03c3\u03bf \u03c4\u03c9\u03bd \u03c4\u03b1\u03b9\u03bd\u03b9\u03ce\u03bd \u03c0\u03bf\u03c5 \u03c4\u03bf\u03c0\u03bf\u03b8\u03b5\u03c4\u03bf\u03cd\u03bd\u03c4\u03b1\u03b9 \u03c3\u03c4\u03bf \u03b1\u03b5\u03c1\u03bf\u03c0\u03bb\u03ac\u03bd\u03bf \u03cc\u03c3\u03bf \u03ba\u03b1\u03b9 \u03c4\u03c9\u03bd \u03c4\u03b1\u03b9\u03bd\u03b9\u03ce\u03bd \u03c0\u03bf\u03c5 \u03c4\u03bf\u03c0\u03bf\u03b8\u03b5\u03c4\u03bf\u03cd\u03bd\u03c4\u03b1\u03b9 \u03c3\u03c4\u03bf \u03ad\u03bb\u03ba\u03b7\u03b8\u03c1\u03bf.<\/li>\n\n\n\n<li><strong>\u0395\u03b3\u03ba\u03b1\u03c4\u03ac\u03c3\u03c4\u03b1\u03c3\u03b7 \u03ad\u03bb\u03ba\u03b7\u03b8\u03c1\u03bf\u03c5<\/strong>: \u03a4\u03bf \u03ad\u03bb\u03ba\u03b7\u03b8\u03c1\u03bf \u03c3\u03c5\u03bd\u03b4\u03ad\u03b5\u03c4\u03b1\u03b9 \u03bc\u03b5 \u03bc\u03b9\u03b1 \u03ba\u03c5\u03c8\u03ad\u03bb\u03b7 \u03c6\u03bf\u03c1\u03c4\u03af\u03bf\u03c5 \u03bc\u03ad\u03c3\u03c9 <strong>\u03bd\u03ae\u03bc\u03b1 \u03bd\u03ac\u03b9\u03bb\u03bf\u03bd<\/strong>, \u03b5\u03be\u03b1\u03c3\u03c6\u03b1\u03bb\u03af\u03b6\u03bf\u03bd\u03c4\u03b1\u03c2 \u03c3\u03c4\u03b1\u03b4\u03b9\u03b1\u03ba\u03ae \u03bc\u03b5\u03c4\u03ac\u03b4\u03bf\u03c3\u03b7 \u03c4\u03b7\u03c2 \u03b4\u03cd\u03bd\u03b1\u03bc\u03b7\u03c2.<\/li>\n\n\n\n<li><strong>\u0388\u03bd\u03b1\u03c1\u03be\u03b7 \u03ba\u03af\u03bd\u03b7\u03c3\u03b7\u03c2<\/strong>: \u0397 \u03c3\u03c5\u03c3\u03ba\u03b5\u03c5\u03ae \u03ba\u03b9\u03bd\u03b5\u03af\u03c4\u03b1\u03b9 \u03bc\u03b5 \u03c4\u03b1\u03c7\u03cd\u03c4\u03b7\u03c4\u03b1 150 \u00b1 30 mm\/min \u03ad\u03c9\u03c2 \u03cc\u03c4\u03bf\u03c5 \u03c4\u03bf \u03ad\u03bb\u03ba\u03b7\u03b8\u03c1\u03bf \u03be\u03b5\u03c0\u03b5\u03c1\u03ac\u03c3\u03b5\u03b9 \u03c4\u03b7 \u03c3\u03c4\u03b1\u03c4\u03b9\u03ba\u03ae \u03c4\u03c1\u03b9\u03b2\u03ae \u03ba\u03b1\u03b9 \u03bf\u03bb\u03b9\u03c3\u03b8\u03ae\u03c3\u03b5\u03b9.<\/li>\n\n\n\n<li><strong>\u039a\u03b1\u03c4\u03b1\u03b3\u03c1\u03b1\u03c6\u03ae<\/strong>: \u039c\u03ad\u03c3\u03b7 \u03b4\u03cd\u03bd\u03b1\u03bc\u03b7 \u03ba\u03b1\u03c4\u03ac \u03c4\u03b7 \u03b4\u03b9\u03ac\u03c1\u03ba\u03b5\u03b9\u03b1 \u03c4\u03b7\u03c2 \u03c3\u03c5\u03bd\u03b5\u03c7\u03bf\u03cd\u03c2 \u03bf\u03bb\u03af\u03c3\u03b8\u03b7\u03c3\u03b7\u03c2 = \u03ba\u03b9\u03bd\u03b7\u03c4\u03b9\u03ba\u03ae COF.<\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\">\u03a0\u03b5\u03c1\u03b9\u03bf\u03c1\u03b9\u03c3\u03bc\u03bf\u03af &amp; \u03b2\u03ad\u03bb\u03c4\u03b9\u03c3\u03c4\u03b5\u03c2 \u03c0\u03c1\u03b1\u03ba\u03c4\u03b9\u03ba\u03ad\u03c2<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u03a4\u03b1\u03b9\u03bd\u03af\u03b5\u03c2 \u03bc\u03b5 \u03c5\u03c8\u03b7\u03bb\u03ae <strong>stick-slip<\/strong> \u03c4\u03ac\u03c3\u03b5\u03b9\u03c2 \u03bc\u03c0\u03bf\u03c1\u03b5\u03af \u03bd\u03b1 \u03b1\u03c0\u03b1\u03b9\u03c4\u03bf\u03cd\u03bd <strong>\u03bc\u03b5\u03c4\u03b1\u03bb\u03bb\u03b9\u03ba\u03ad\u03c2 \u03b3\u03c1\u03b1\u03bc\u03bc\u03ad\u03c2 \u03c1\u03c5\u03bc\u03bf\u03cd\u03bb\u03ba\u03b7\u03c3\u03b7\u03c2<\/strong> \u03b1\u03bd\u03c4\u03af \u03b3\u03b9\u03b1 \u03bd\u03ac\u03b9\u03bb\u03bf\u03bd \u03b3\u03b9\u03b1 \u03c4\u03b7\u03bd \u03ba\u03b9\u03bd\u03b7\u03c4\u03b9\u03ba\u03ae COF.<\/li>\n\n\n\n<li><strong>\u0391\u03c0\u03b1\u03b3\u03bf\u03c1\u03b5\u03cd\u03b5\u03c4\u03b1\u03b9 \u03b7 \u03b5\u03c0\u03b1\u03bd\u03b1\u03c7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03af\u03b7\u03c3\u03b7 \u03c4\u03bf\u03c5 \u03b4\u03b5\u03af\u03b3\u03bc\u03b1\u03c4\u03bf\u03c2<\/strong> \u03b5\u03ba\u03c4\u03cc\u03c2 \u03b1\u03bd \u03bc\u03b5\u03bb\u03b5\u03c4\u03ac \u03c4\u03b7 \u03b3\u03ae\u03c1\u03b1\u03bd\u03c3\u03b7 \u03ae \u03c4\u03b7\u03bd \u03b5\u03c0\u03b9\u03c6\u03b1\u03bd\u03b5\u03b9\u03b1\u03ba\u03ae \u03c6\u03b8\u03bf\u03c1\u03ac.<\/li>\n\n\n\n<li><strong>\u03a7\u03c1\u03cc\u03bd\u03bf\u03c2 \u03b1\u03c0\u03cc\u03ba\u03c1\u03b9\u03c3\u03b7\u03c2 \u03c4\u03bf\u03c5 \u03ba\u03b1\u03c4\u03b1\u03b3\u03c1\u03b1\u03c6\u03ad\u03b1<\/strong> \u03c0\u03c1\u03ad\u03c0\u03b5\u03b9 \u03bd\u03b1 \u03c4\u03b1\u03b9\u03c1\u03b9\u03ac\u03b6\u03b5\u03b9 \u03bc\u03b5 \u03c4\u03b7\u03bd \u03c4\u03b1\u03c7\u03cd\u03c4\u03b7\u03c4\u03b1 \u03b1\u03bd\u03ac\u03c0\u03c4\u03c5\u03be\u03b7\u03c2 \u03c4\u03b7\u03c2 \u03c4\u03c1\u03b9\u03b2\u03ae\u03c2 \u03b3\u03b9\u03b1 \u03c4\u03b7\u03bd \u03b1\u03c0\u03bf\u03c6\u03c5\u03b3\u03ae \u03b1\u03bd\u03b1\u03ba\u03c1\u03b9\u03b2\u03ce\u03bd \u03ba\u03bf\u03c1\u03c5\u03c6\u03ce\u03bd.<\/li>\n<\/ul>\n\n\n\n<p><strong>Cell Instruments<\/strong> \u03c0\u03c1\u03bf\u03c3\u03c6\u03ad\u03c1\u03b5\u03b9 \u03b1\u03c5\u03c4\u03bf\u03bc\u03b1\u03c4\u03bf\u03c0\u03bf\u03b9\u03b7\u03bc\u03ad\u03bd\u03bf <strong>\u0394\u03bf\u03ba\u03b9\u03bc\u03b1\u03c3\u03c4\u03ad\u03c2 COF<\/strong> \u03c3\u03c7\u03b5\u03b4\u03b9\u03b1\u03c3\u03bc\u03ad\u03bd\u03bf \u03b3\u03b9\u03b1 \u03c4\u03bf \u03c0\u03c1\u03cc\u03c4\u03c5\u03c0\u03bf ASTM D1894, \u03b5\u03c0\u03b9\u03c4\u03c1\u03ad\u03c0\u03bf\u03bd\u03c4\u03b1\u03c2 \u03c4\u03bf\u03bd \u03b1\u03ba\u03c1\u03b9\u03b2\u03ae \u03ad\u03bb\u03b5\u03b3\u03c7\u03bf \u03c4\u03b7\u03c2 \u03c4\u03b1\u03c7\u03cd\u03c4\u03b7\u03c4\u03b1\u03c2, \u03c4\u03b7\u03c2 \u03b4\u03cd\u03bd\u03b1\u03bc\u03b7\u03c2 \u03ba\u03b1\u03b9 \u03c4\u03b7\u03c2 \u03b8\u03b5\u03c1\u03bc\u03bf\u03ba\u03c1\u03b1\u03c3\u03af\u03b1\u03c2 \u03b3\u03b9\u03b1 \u03c4\u03b7\u03bd \u03b5\u03be\u03b1\u03c3\u03c6\u03ac\u03bb\u03b9\u03c3\u03b7 <strong>\u03b5\u03c0\u03b1\u03bd\u03b1\u03bb\u03b1\u03bc\u03b2\u03b1\u03bd\u03cc\u03bc\u03b5\u03bd\u03b1 \u03ba\u03b1\u03b9 \u03ad\u03b3\u03ba\u03c5\u03c1\u03b1 \u03b4\u03b5\u03b4\u03bf\u03bc\u03ad\u03bd\u03b1 \u03b4\u03bf\u03ba\u03b9\u03bc\u03ce\u03bd<\/strong>.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">ASTM D202: \u0394\u03bf\u03ba\u03b9\u03bc\u03ad\u03c2 \u03c4\u03c1\u03b9\u03b2\u03ae\u03c2 \u03b3\u03b9\u03b1 \u03c7\u03b1\u03c1\u03c4\u03af \u03b7\u03bb\u03b5\u03ba\u03c4\u03c1\u03b9\u03ba\u03ae\u03c2 \u03bc\u03cc\u03bd\u03c9\u03c3\u03b7\u03c2<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u03a3\u03ba\u03bf\u03c0\u03cc\u03c2 \u03ba\u03b1\u03b9 \u03b5\u03c6\u03b1\u03c1\u03bc\u03bf\u03b3\u03ae<\/h3>\n\n\n\n<p><strong>ASTM D202<\/strong>\u2014<em>\u03a4\u03c5\u03c0\u03bf\u03c0\u03bf\u03b9\u03b7\u03bc\u03ad\u03bd\u03b5\u03c2 \u03bc\u03ad\u03b8\u03bf\u03b4\u03bf\u03b9 \u03b4\u03bf\u03ba\u03b9\u03bc\u03ae\u03c2 \u03b3\u03b9\u03b1 \u03c4\u03b7 \u03b4\u03b5\u03b9\u03b3\u03bc\u03b1\u03c4\u03bf\u03bb\u03b7\u03c8\u03af\u03b1 \u03ba\u03b1\u03b9 \u03c4\u03b7 \u03b4\u03bf\u03ba\u03b9\u03bc\u03ae \u03bc\u03b7 \u03b5\u03c0\u03b5\u03be\u03b5\u03c1\u03b3\u03b1\u03c3\u03bc\u03ad\u03bd\u03bf\u03c5 \u03c7\u03b1\u03c1\u03c4\u03b9\u03bf\u03cd \u03c0\u03bf\u03c5 \u03c7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03b9\u03b5\u03af\u03c4\u03b1\u03b9 \u03b3\u03b9\u03b1 \u03b7\u03bb\u03b5\u03ba\u03c4\u03c1\u03b9\u03ba\u03ae \u03bc\u03cc\u03bd\u03c9\u03c3\u03b7<\/em>-\u03b1\u03c0\u03b5\u03c5\u03b8\u03cd\u03bd\u03b5\u03c4\u03b1\u03b9 \u03c3\u03c4\u03bf <strong>\u03bc\u03b7\u03c7\u03b1\u03bd\u03b9\u03ba\u03ac \u03ba\u03b1\u03b9 \u03b5\u03c0\u03b9\u03c6\u03b1\u03bd\u03b5\u03b9\u03b1\u03ba\u03ac \u03c7\u03b1\u03c1\u03b1\u03ba\u03c4\u03b7\u03c1\u03b9\u03c3\u03c4\u03b9\u03ba\u03ac<\/strong> \u03bc\u03bf\u03bd\u03c9\u03c4\u03b9\u03ba\u03bf\u03cd \u03c7\u03b1\u03c1\u03c4\u03b9\u03bf\u03cd, \u03c4\u03bf \u03bf\u03c0\u03bf\u03af\u03bf \u03c7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03b9\u03b5\u03af\u03c4\u03b1\u03b9 \u03b5\u03c5\u03c1\u03ad\u03c9\u03c2 \u03c3\u03b5 <strong>\u03b7\u03bb\u03b5\u03ba\u03c4\u03c1\u03b9\u03ba\u03ad\u03c2 \u03ba\u03b1\u03b9 \u03b7\u03bb\u03b5\u03ba\u03c4\u03c1\u03bf\u03bd\u03b9\u03ba\u03ad\u03c2 \u03c3\u03c5\u03c3\u03ba\u03b5\u03c5\u03ad\u03c2<\/strong>. \u039c\u03b5\u03c4\u03b1\u03be\u03cd \u03ac\u03bb\u03bb\u03c9\u03bd \u03c6\u03c5\u03c3\u03b9\u03ba\u03ce\u03bd \u03b9\u03b4\u03b9\u03bf\u03c4\u03ae\u03c4\u03c9\u03bd, <strong>\u03c7\u03b1\u03c1\u03b1\u03ba\u03c4\u03b7\u03c1\u03b9\u03c3\u03c4\u03b9\u03ba\u03ac \u03c4\u03c1\u03b9\u03b2\u03ae\u03c2<\/strong> \u03b1\u03be\u03b9\u03bf\u03bb\u03bf\u03b3\u03bf\u03cd\u03bd\u03c4\u03b1\u03b9 \u03b3\u03b9\u03b1 \u03bd\u03b1 \u03b4\u03b9\u03b1\u03c3\u03c6\u03b1\u03bb\u03b9\u03c3\u03c4\u03b5\u03af <strong>\u03c3\u03c5\u03bd\u03bf\u03c7\u03ae \u03c4\u03bf\u03c5 \u03c7\u03b1\u03c1\u03c4\u03b9\u03bf\u03cd \u03ba\u03b1\u03c4\u03ac \u03c4\u03b7\u03bd \u03c0\u03b5\u03c1\u03b9\u03ad\u03bb\u03b9\u03be\u03b7, \u03c4\u03b7 \u03b4\u03b9\u03b1\u03c3\u03c4\u03c1\u03c9\u03bc\u03ac\u03c4\u03c9\u03c3\u03b7 \u03ba\u03b1\u03b9 \u03c4\u03b7\u03bd \u03b5\u03b3\u03ba\u03b1\u03c4\u03ac\u03c3\u03c4\u03b1\u03c3\u03b7<\/strong>.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u0394\u03b9\u03b1\u03c4\u03ac\u03be\u03b5\u03b9\u03c2 \u03c3\u03c7\u03b5\u03c4\u03b9\u03ba\u03ac \u03bc\u03b5 \u03c4\u03b7\u03bd \u03c4\u03c1\u03b9\u03b2\u03ae \u03c3\u03c4\u03bf ASTM D202<\/h3>\n\n\n\n<p>\u0395\u03bd\u03ce \u03c4\u03bf ASTM D202 \u03ba\u03b1\u03bb\u03cd\u03c0\u03c4\u03b5\u03b9 \u03ad\u03bd\u03b1 \u03b5\u03c5\u03c1\u03cd \u03c6\u03ac\u03c3\u03bc\u03b1 \u03b9\u03b4\u03b9\u03bf\u03c4\u03ae\u03c4\u03c9\u03bd \u03c7\u03b1\u03c1\u03c4\u03b9\u03bf\u03cd (\u03c0.\u03c7. \u03b1\u03bd\u03c4\u03bf\u03c7\u03ae \u03c3\u03b5 \u03b5\u03c6\u03b5\u03bb\u03ba\u03c5\u03c3\u03bc\u03cc, \u03c0\u03ac\u03c7\u03bf\u03c2), \u03c4\u03b1 \u03c3\u03c4\u03bf\u03b9\u03c7\u03b5\u03af\u03b1 \u03c4\u03b7\u03c2 \u03b4\u03bf\u03ba\u03b9\u03bc\u03ae\u03c2 \u03c4\u03c1\u03b9\u03b2\u03ae\u03c2 \u03b5\u03af\u03bd\u03b1\u03b9 \u03b6\u03c9\u03c4\u03b9\u03ba\u03ae\u03c2 \u03c3\u03b7\u03bc\u03b1\u03c3\u03af\u03b1\u03c2 \u03b3\u03b9\u03b1 \u03c4\u03b7\u03bd \u03b1\u03be\u03b9\u03bf\u03bb\u03cc\u03b3\u03b7\u03c3\u03b7:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u0391\u03bd\u03c4\u03bf\u03c7\u03ae \u03c3\u03c4\u03b7\u03bd \u03bf\u03bb\u03af\u03c3\u03b8\u03b7\u03c3\u03b7<\/strong> \u03ba\u03b1\u03c4\u03ac \u03c4\u03bf \u03c7\u03b5\u03b9\u03c1\u03b9\u03c3\u03bc\u03cc.<\/li>\n\n\n\n<li><strong>\u03a0\u03c1\u03cc\u03c3\u03c6\u03c5\u03c3\u03b7 \u03b1\u03c0\u03cc \u03c3\u03c4\u03c1\u03ce\u03bc\u03b1 \u03c3\u03b5 \u03c3\u03c4\u03c1\u03ce\u03bc\u03b1<\/strong> \u03c3\u03b5 \u03c0\u03bf\u03bb\u03c5\u03c3\u03c4\u03c1\u03c9\u03bc\u03b1\u03c4\u03b9\u03ba\u03ac \u03c3\u03c5\u03c3\u03c4\u03ae\u03bc\u03b1\u03c4\u03b1 \u03bc\u03cc\u03bd\u03c9\u03c3\u03b7\u03c2.<\/li>\n\n\n\n<li><strong>\u039f\u03bc\u03bf\u03b9\u03bf\u03bc\u03bf\u03c1\u03c6\u03af\u03b1 \u03b5\u03c0\u03b9\u03c6\u03ac\u03bd\u03b5\u03b9\u03b1\u03c2<\/strong> \u03c3\u03b5 \u03cc\u03bb\u03b5\u03c2 \u03c4\u03b9\u03c2 \u03c0\u03b1\u03c1\u03c4\u03af\u03b4\u03b5\u03c2 \u03c0\u03b1\u03c1\u03b1\u03b3\u03c9\u03b3\u03ae\u03c2.<\/li>\n<\/ul>\n\n\n\n<p>\u039f\u03b9 \u03b4\u03bf\u03ba\u03b9\u03bc\u03ad\u03c2 \u03c4\u03c1\u03b9\u03b2\u03ae\u03c2 \u03c3\u03c4\u03bf D202 \u03b5\u03c0\u03b9\u03ba\u03b5\u03bd\u03c4\u03c1\u03ce\u03bd\u03bf\u03bd\u03c4\u03b1\u03b9 \u03c0\u03b5\u03c1\u03b9\u03c3\u03c3\u03cc\u03c4\u03b5\u03c1\u03bf \u03c3\u03b5 <strong>\u03c3\u03c5\u03bd\u03c4\u03b5\u03bb\u03b5\u03c3\u03c4\u03ae\u03c2 \u03c3\u03c4\u03b1\u03c4\u03b9\u03ba\u03ae\u03c2 \u03c4\u03c1\u03b9\u03b2\u03ae\u03c2<\/strong>, \u03c7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03b9\u03ce\u03bd\u03c4\u03b1\u03c2 \u03b4\u03b9\u03b1\u03b4\u03b9\u03ba\u03b1\u03c3\u03af\u03b5\u03c2 \u03c0\u03c1\u03bf\u03c3\u03b1\u03c1\u03bc\u03bf\u03c3\u03bc\u03ad\u03bd\u03b5\u03c2 \u03c3\u03b5 \u03bb\u03b5\u03c0\u03c4\u03cc\u03c4\u03b5\u03c1\u03b1, \u03c0\u03b9\u03bf \u03b9\u03bd\u03ce\u03b4\u03b7 \u03c5\u03c0\u03bf\u03c3\u03c4\u03c1\u03ce\u03bc\u03b1\u03c4\u03b1 \u03c3\u03b5 \u03c3\u03cd\u03b3\u03ba\u03c1\u03b9\u03c3\u03b7 \u03bc\u03b5 \u03c4\u03bf ASTM D1894.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u0392\u03b1\u03c3\u03b9\u03ba\u03ad\u03c2 \u03b4\u03b9\u03b1\u03c6\u03bf\u03c1\u03ad\u03c2 \u03b4\u03bf\u03ba\u03b9\u03bc\u03ce\u03bd \u03b1\u03c0\u03cc \u03c4\u03bf D1894<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u03a4\u03b1 \u03c5\u03c0\u03bf\u03c3\u03c4\u03c1\u03ce\u03bc\u03b1\u03c4\u03b1 \u03c0\u03bf\u03c5 \u03b4\u03bf\u03ba\u03b9\u03bc\u03ac\u03b6\u03bf\u03bd\u03c4\u03b1\u03b9 \u03b5\u03af\u03bd\u03b1\u03b9 \u03c3\u03c5\u03bd\u03ae\u03b8\u03c9\u03c2 <strong>\u03c7\u03b1\u03c1\u03c4\u03af<\/strong>, \u03cc\u03c7\u03b9 \u03c0\u03bf\u03bb\u03c5\u03bc\u03b5\u03c1\u03ae \u03c6\u03b9\u03bb\u03bc.<\/li>\n\n\n\n<li>\u039f\u03b9 \u03b4\u03bf\u03ba\u03b9\u03bc\u03ad\u03c2 \u03b4\u03af\u03bd\u03bf\u03c5\u03bd \u03ad\u03bc\u03c6\u03b1\u03c3\u03b7 <strong>\u03bc\u03b7 \u03b5\u03c0\u03b9\u03c7\u03c1\u03b9\u03c3\u03bc\u03ad\u03bd\u03bf, \u03bc\u03b7 \u03b5\u03c0\u03b5\u03be\u03b5\u03c1\u03b3\u03b1\u03c3\u03bc\u03ad\u03bd\u03bf \u03c7\u03b1\u03c1\u03c4\u03af<\/strong>, \u03b5\u03be\u03b1\u03c3\u03c6\u03b1\u03bb\u03af\u03b6\u03bf\u03bd\u03c4\u03b1\u03c2 \u03cc\u03c4\u03b9 \u03b7 \u03c3\u03c5\u03bc\u03c0\u03b5\u03c1\u03b9\u03c6\u03bf\u03c1\u03ac \u03c4\u03c9\u03bd \u03c0\u03c1\u03ce\u03c4\u03c9\u03bd \u03c5\u03bb\u03ce\u03bd \u03bc\u03b5\u03c4\u03c1\u03ac\u03c4\u03b1\u03b9.<\/li>\n\n\n\n<li>\u0397 \u03c7\u03b1\u03bc\u03b7\u03bb\u03cc\u03c4\u03b5\u03c1\u03b7 \u03bc\u03b7\u03c7\u03b1\u03bd\u03b9\u03ba\u03ae \u03b1\u03bd\u03c4\u03bf\u03c7\u03ae \u03c4\u03c9\u03bd \u03b4\u03bf\u03ba\u03b9\u03bc\u03b1\u03c3\u03c4\u03b9\u03ba\u03ce\u03bd \u03c4\u03b5\u03bc\u03b1\u03c7\u03af\u03c9\u03bd \u03b1\u03c0\u03b1\u03b9\u03c4\u03b5\u03af <strong>\u03c0\u03b9\u03bf \u03ae\u03c0\u03b9\u03b5\u03c2 \u03c3\u03c5\u03bd\u03b8\u03ae\u03ba\u03b5\u03c2 \u03c4\u03bf\u03c0\u03bf\u03b8\u03ad\u03c4\u03b7\u03c3\u03b7\u03c2 \u03ba\u03b1\u03b9 \u03c6\u03cc\u03c1\u03c4\u03c9\u03c3\u03b7\u03c2<\/strong>.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\u0392\u03b5\u03bb\u03c4\u03b9\u03ce\u03c3\u03b5\u03b9\u03c2 \u03b4\u03b9\u03b1\u03b4\u03b9\u03ba\u03b1\u03c3\u03af\u03b1\u03c2<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u039a\u03cc\u03c8\u03c4\u03b5 \u03b4\u03b5\u03af\u03b3\u03bc\u03b1\u03c4\u03b1 \u03bc\u03b5 \u03b1\u03ba\u03c1\u03b9\u03b2\u03b5\u03af\u03c2 \u03b4\u03b9\u03b1\u03c3\u03c4\u03ac\u03c3\u03b5\u03b9\u03c2, \u03b5\u03c5\u03b8\u03c5\u03b3\u03c1\u03b1\u03bc\u03bc\u03b9\u03c3\u03bc\u03ad\u03bd\u03b1 \u03ba\u03b1\u03c4\u03ac \u03bc\u03ae\u03ba\u03bf\u03c2 \u03c4\u03b7\u03c2 \u03b4\u03b9\u03b5\u03cd\u03b8\u03c5\u03bd\u03c3\u03b7\u03c2 \u03c4\u03c9\u03bd \u03ba\u03cc\u03ba\u03ba\u03c9\u03bd.<\/li>\n\n\n\n<li>\u0391\u03c0\u03bf\u03c6\u03cd\u03b3\u03b5\u03c4\u03b5 \u03c4\u03bf \u03c4\u03c3\u03b1\u03bb\u03ac\u03ba\u03c9\u03bc\u03b1 \u03ae \u03c4\u03b7 \u03bc\u03cc\u03bb\u03c5\u03bd\u03c3\u03b7 \u03c4\u03c9\u03bd \u03b5\u03c0\u03b9\u03c6\u03b1\u03bd\u03b5\u03b9\u03ce\u03bd \u03b3\u03b9\u03b1 \u03bd\u03b1 \u03b5\u03be\u03b1\u03c3\u03c6\u03b1\u03bb\u03af\u03c3\u03b5\u03c4\u03b5 \u03ad\u03b3\u03ba\u03c5\u03c1\u03b5\u03c2 \u03bc\u03b5\u03c4\u03c1\u03ae\u03c3\u03b5\u03b9\u03c2 \u03c4\u03c1\u03b9\u03b2\u03ae\u03c2.<\/li>\n\n\n\n<li>\u03a7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03b9\u03ae\u03c3\u03c4\u03b5 \u03ad\u03bd\u03b1\u03bd \u03b5\u03bb\u03b5\u03b3\u03ba\u03c4\u03ae COF \u03bc\u03b5 <strong>\u03c1\u03c5\u03b8\u03bc\u03b9\u03b6\u03cc\u03bc\u03b5\u03bd\u03b1 \u03b2\u03ac\u03c1\u03b7<\/strong> \u03b3\u03b9\u03b1 \u03bd\u03b1 \u03c6\u03b9\u03bb\u03bf\u03be\u03b5\u03bd\u03ae\u03c3\u03b5\u03b9 \u03b5\u03bb\u03b1\u03c6\u03c1\u03cd\u03c4\u03b5\u03c1\u03b1 \u03b4\u03b5\u03af\u03b3\u03bc\u03b1\u03c4\u03b1.<\/li>\n\n\n\n<li>\u0391\u03bd\u03ac\u03bb\u03c5\u03c3\u03b7 \u03c4\u03c9\u03bd \u03bc\u03b5\u03c4\u03b1\u03b2\u03bf\u03bb\u03ce\u03bd \u03c4\u03bf\u03c5 COF \u03c3\u03b5 <strong>\u03c5\u03b3\u03c1\u03ac \u03c0\u03b5\u03c1\u03b9\u03b2\u03ac\u03bb\u03bb\u03bf\u03bd\u03c4\u03b1<\/strong>, \u03cc\u03c0\u03bf\u03c5 \u03bf\u03b9 \u03af\u03bd\u03b5\u03c2 \u03ba\u03c5\u03c4\u03c4\u03b1\u03c1\u03af\u03bd\u03b7\u03c2 \u03bc\u03c0\u03bf\u03c1\u03b5\u03af \u03bd\u03b1 \u03b5\u03c0\u03b5\u03ba\u03c4\u03b1\u03b8\u03bf\u03cd\u03bd, \u03b5\u03c0\u03b7\u03c1\u03b5\u03ac\u03b6\u03bf\u03bd\u03c4\u03b1\u03c2 \u03c4\u03b7\u03bd \u03c4\u03c1\u03b9\u03b2\u03ae.<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img fetchpriority=\"high\" decoding=\"async\" width=\"494\" height=\"237\" src=\"https:\/\/www.coefficientfriction.com\/wp-content\/uploads\/2025\/05\/ASTM-D202-01.webp\" alt=\"\" class=\"wp-image-431\" srcset=\"https:\/\/www.coefficientfriction.com\/wp-content\/uploads\/2025\/05\/ASTM-D202-01.webp 494w, https:\/\/www.coefficientfriction.com\/wp-content\/uploads\/2025\/05\/ASTM-D202-01-300x144.webp 300w, https:\/\/www.coefficientfriction.com\/wp-content\/uploads\/2025\/05\/ASTM-D202-01-18x9.webp 18w\" sizes=\"(max-width: 494px) 100vw, 494px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">\u0395\u03bd\u03c3\u03c9\u03bc\u03ac\u03c4\u03c9\u03c3\u03b7 \u03c4\u03bf\u03c5 ASTM D202 \u03bc\u03b5 \u03cc\u03c1\u03b3\u03b1\u03bd\u03b1 COF<\/h3>\n\n\n\n<p>\u03a3\u03cd\u03b3\u03c7\u03c1\u03bf\u03bd\u03bf <strong>\u03b4\u03bf\u03ba\u03b9\u03bc\u03b1\u03c3\u03c4\u03ad\u03c2 \u03c4\u03c1\u03b9\u03b2\u03ae\u03c2<\/strong> \u03c0\u03bf\u03c5 \u03c7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03b9\u03bf\u03cd\u03bd\u03c4\u03b1\u03b9 \u03b3\u03b9\u03b1 \u03c4\u03bf ASTM D202, \u03cc\u03c0\u03c9\u03c2 \u03b1\u03c5\u03c4\u03ac \u03c4\u03bf\u03c5 Cell Instruments, \u03b4\u03b9\u03b1\u03b8\u03ad\u03c4\u03bf\u03c5\u03bd <strong>\u03c0\u03c1\u03bf\u03b3\u03c1\u03b1\u03bc\u03bc\u03b1\u03c4\u03b9\u03b6\u03cc\u03bc\u03b5\u03bd\u03b7 \u03c6\u03cc\u03c1\u03c4\u03c9\u03c3\u03b7<\/strong>, <strong>\u03bc\u03b5\u03c4\u03b1\u03b2\u03bf\u03bb\u03ae \u03c4\u03b7\u03c2 \u03c4\u03b1\u03c7\u03cd\u03c4\u03b7\u03c4\u03b1\u03c2<\/strong>, \u03ba\u03b1\u03b9 <strong>\u03ad\u03bb\u03b5\u03b3\u03c7\u03bf\u03c2 \u03c5\u03b3\u03c1\u03b1\u03c3\u03af\u03b1\u03c2<\/strong>-\u03ba\u03c1\u03af\u03c3\u03b9\u03bc\u03bf \u03b3\u03b9\u03b1 \u03c4\u03b7\u03bd \u03c0\u03c1\u03bf\u03c3\u03bf\u03bc\u03bf\u03af\u03c9\u03c3\u03b7 \u03c0\u03c1\u03b1\u03b3\u03bc\u03b1\u03c4\u03b9\u03ba\u03ce\u03bd \u03b1\u03c0\u03bf\u03b8\u03b7\u03ba\u03b5\u03c5\u03c4\u03b9\u03ba\u03ce\u03bd \u03ba\u03b1\u03b9 \u03b5\u03c0\u03b9\u03c7\u03b5\u03b9\u03c1\u03b7\u03c3\u03b9\u03b1\u03ba\u03ce\u03bd \u03c0\u03b5\u03c1\u03b9\u03b2\u03b1\u03bb\u03bb\u03cc\u03bd\u03c4\u03c9\u03bd.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u0386\u03bb\u03bb\u03b1 \u03b1\u03c0\u03bf\u03c3\u03c5\u03c1\u03b8\u03ad\u03bd\u03c4\u03b1 \u03c0\u03c1\u03cc\u03c4\u03c5\u03c0\u03b1 \u03c4\u03c1\u03b9\u03b2\u03ae\u03c2 ASTM \u03c0\u03bf\u03c5 \u03b1\u03be\u03af\u03b6\u03b5\u03b9 \u03bd\u03b1 \u03c3\u03b7\u03bc\u03b5\u03b9\u03c9\u03b8\u03bf\u03cd\u03bd<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>ASTM D4521-96 (\u0391\u03c0\u03cc\u03c3\u03c5\u03c1\u03c3\u03b7 2001)<\/strong>: <em>\u03a0\u03c1\u03cc\u03c4\u03c5\u03c0\u03b7 \u03bc\u03ad\u03b8\u03bf\u03b4\u03bf\u03c2 \u03b4\u03bf\u03ba\u03b9\u03bc\u03ae\u03c2 \u03b3\u03b9\u03b1 \u03c4\u03bf \u03c3\u03c5\u03bd\u03c4\u03b5\u03bb\u03b5\u03c3\u03c4\u03ae \u03c3\u03c4\u03b1\u03c4\u03b9\u03ba\u03ae\u03c2 \u03c4\u03c1\u03b9\u03b2\u03ae\u03c2 \u03ba\u03c5\u03bc\u03b1\u03c4\u03bf\u03b5\u03b9\u03b4\u03bf\u03cd\u03c2 \u03ba\u03b1\u03b9 \u03c3\u03c4\u03b5\u03c1\u03b5\u03bf\u03cd \u03b9\u03bd\u03bf\u03c3\u03b1\u03bd\u03af\u03b4\u03b1\u03c2<\/em>. \u0397 \u03bc\u03ad\u03b8\u03bf\u03b4\u03bf\u03c2 \u03b1\u03c5\u03c4\u03ae \u03c0\u03b1\u03c1\u03b5\u03af\u03c7\u03b5 \u03ad\u03bd\u03b1 \u03bc\u03ad\u03c3\u03bf \u03b3\u03b9\u03b1 \u03c4\u03b7\u03bd \u03b1\u03be\u03b9\u03bf\u03bb\u03cc\u03b3\u03b7\u03c3\u03b7 \u03c4\u03b7\u03c2 \u03c3\u03c4\u03b1\u03c4\u03b9\u03ba\u03ae\u03c2 COF \u03c4\u03c9\u03bd \u03c5\u03bb\u03b9\u03ba\u03ce\u03bd \u03b9\u03bd\u03bf\u03c3\u03b1\u03bd\u03af\u03b4\u03c9\u03bd, \u03b2\u03bf\u03b7\u03b8\u03ce\u03bd\u03c4\u03b1\u03c2 \u03c3\u03c4\u03b7\u03bd \u03b1\u03be\u03b9\u03bf\u03bb\u03cc\u03b3\u03b7\u03c3\u03b7 \u03c4\u03b7\u03c2 \u03b1\u03c0\u03cc\u03b4\u03bf\u03c3\u03b7\u03c2 \u03c7\u03b5\u03b9\u03c1\u03b9\u03c3\u03bc\u03bf\u03cd \u03ba\u03b1\u03b9 \u03c3\u03c4\u03bf\u03af\u03b2\u03b1\u03be\u03ae\u03c2 \u03c4\u03bf\u03c5\u03c2.<\/li>\n\n\n\n<li><strong>ASTM D4917-97(2007)e1 (\u0391\u03c0\u03cc\u03c3\u03c5\u03c1\u03c3\u03b7 2010)<\/strong>: <em>\u03a0\u03c1\u03cc\u03c4\u03c5\u03c0\u03b7 \u03bc\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\u03bf\u03c5 \u03bc\u03b7 \u03b5\u03c0\u03b9\u03c7\u03c1\u03b9\u03c3\u03bc\u03ad\u03bd\u03bf\u03c5 \u03c7\u03b1\u03c1\u03c4\u03b9\u03bf\u03cd \u03b3\u03c1\u03b1\u03c6\u03ae\u03c2 \u03ba\u03b1\u03b9 \u03b5\u03ba\u03c4\u03cd\u03c0\u03c9\u03c3\u03b7\u03c2 \u03bc\u03b5 \u03c4\u03b7 \u03c7\u03c1\u03ae\u03c3\u03b7 \u03c4\u03b7\u03c2 \u03bc\u03b5\u03b8\u03cc\u03b4\u03bf\u03c5 \u03c4\u03bf\u03c5 \u03bf\u03c1\u03b9\u03b6\u03cc\u03bd\u03c4\u03b9\u03bf\u03c5 \u03b5\u03c0\u03b9\u03c0\u03ad\u03b4\u03bf\u03c5<\/em>. \u0397 \u03bc\u03ad\u03b8\u03bf\u03b4\u03bf\u03c2 \u03b1\u03c5\u03c4\u03ae \u03c7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03af\u03b7\u03c3\u03b5 \u03ad\u03bd\u03b1 \u03bf\u03c1\u03b9\u03b6\u03cc\u03bd\u03c4\u03b9\u03bf \u03ad\u03bb\u03ba\u03b7\u03b8\u03c1\u03bf \u03ba\u03b1\u03b9 \u03bc\u03b9\u03b1 \u03b5\u03c0\u03af\u03c0\u03b5\u03b4\u03b7 \u03b4\u03b9\u03ac\u03c4\u03b1\u03be\u03b7 \u03b3\u03b9\u03b1 \u03c4\u03b7 \u03bc\u03ad\u03c4\u03c1\u03b7\u03c3\u03b7 \u03c4\u03cc\u03c3\u03bf \u03c4\u03c9\u03bd \u03c3\u03c4\u03b1\u03c4\u03b9\u03ba\u03ce\u03bd \u03cc\u03c3\u03bf \u03ba\u03b1\u03b9 \u03c4\u03c9\u03bd \u03ba\u03b9\u03bd\u03b7\u03c4\u03b9\u03ba\u03ce\u03bd \u03c4\u03b9\u03bc\u03ce\u03bd COF \u03b3\u03b9\u03b1 \u03c5\u03c0\u03bf\u03c3\u03c4\u03c1\u03ce\u03bc\u03b1\u03c4\u03b1 \u03c7\u03b1\u03c1\u03c4\u03b9\u03bf\u03cd.<\/li>\n\n\n\n<li><strong>ASTM D4918-97(2007) (\u0391\u03c0\u03cc\u03c3\u03c5\u03c1\u03c3\u03b7 2010)<\/strong>: <em>\u03a0\u03c1\u03cc\u03c4\u03c5\u03c0\u03b7 \u03bc\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 \u03c4\u03c1\u03b9\u03b2\u03ae\u03c2 \u03c4\u03bf\u03c5 \u03bc\u03b7 \u03b5\u03c0\u03b9\u03c7\u03c1\u03b9\u03c3\u03bc\u03ad\u03bd\u03bf\u03c5 \u03c7\u03b1\u03c1\u03c4\u03b9\u03bf\u03cd \u03b3\u03c1\u03b1\u03c6\u03ae\u03c2 \u03ba\u03b1\u03b9 \u03b5\u03ba\u03c4\u03cd\u03c0\u03c9\u03c3\u03b7\u03c2 \u03bc\u03b5 \u03c4\u03b7 \u03c7\u03c1\u03ae\u03c3\u03b7 \u03c4\u03b7\u03c2 \u03bc\u03b5\u03b8\u03cc\u03b4\u03bf\u03c5 \u03c4\u03bf\u03c5 \u03ba\u03b5\u03ba\u03bb\u03b9\u03bc\u03ad\u03bd\u03bf\u03c5 \u03b5\u03c0\u03b9\u03c0\u03ad\u03b4\u03bf\u03c5<\/em>. \u03a3\u03b5 \u03b1\u03bd\u03c4\u03af\u03b8\u03b5\u03c3\u03b7 \u03bc\u03b5 \u03c4\u03bf D4917, \u03b1\u03c5\u03c4\u03ae \u03b7 \u03b4\u03bf\u03ba\u03b9\u03bc\u03ae \u03c7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03af\u03b7\u03c3\u03b5 \u03ad\u03bd\u03b1 \u03ba\u03b5\u03ba\u03bb\u03b9\u03bc\u03ad\u03bd\u03bf \u03b5\u03c0\u03af\u03c0\u03b5\u03b4\u03bf \u03b3\u03b9\u03b1 \u03bd\u03b1 \u03b5\u03ba\u03c4\u03b9\u03bc\u03ae\u03c3\u03b5\u03b9 \u03c4\u03bf \u03c3\u03b7\u03bc\u03b5\u03af\u03bf \u03c3\u03c4\u03bf \u03bf\u03c0\u03bf\u03af\u03bf \u03c4\u03bf \u03c7\u03b1\u03c1\u03c4\u03af \u03b1\u03c1\u03c7\u03af\u03b6\u03b5\u03b9 \u03bd\u03b1 \u03b3\u03bb\u03b9\u03c3\u03c4\u03c1\u03ac\u03b5\u03b9 \u03c5\u03c0\u03cc \u03c4\u03b7\u03bd \u03b5\u03c0\u03af\u03b4\u03c1\u03b1\u03c3\u03b7 \u03c4\u03b7\u03c2 \u03b2\u03b1\u03c1\u03cd\u03c4\u03b7\u03c4\u03b1\u03c2.<\/li>\n<\/ul>\n\n\n\n<p>\u0391\u03c5\u03c4\u03ac \u03c4\u03b1 \u03b1\u03c0\u03bf\u03c3\u03c5\u03c1\u03b8\u03ad\u03bd\u03c4\u03b1 \u03c0\u03c1\u03cc\u03c4\u03c5\u03c0\u03b1 \u03c7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03b9\u03bf\u03cd\u03bd\u03c4\u03b1\u03bd \u03ba\u03ac\u03c0\u03bf\u03c4\u03b5 \u03b5\u03c5\u03c1\u03ad\u03c9\u03c2 \u03b3\u03b9\u03b1 \u03c4\u03b7\u03bd \u03b1\u03be\u03b9\u03bf\u03bb\u03cc\u03b3\u03b7\u03c3\u03b7 <strong>\u03b5\u03c0\u03b9\u03b4\u03cc\u03c3\u03b5\u03b9\u03c2 \u03c4\u03c1\u03b9\u03b2\u03ae\u03c2 \u03c3\u03b5 \u03c0\u03c1\u03bf\u03ca\u03cc\u03bd\u03c4\u03b1 \u03c7\u03b1\u03c1\u03c4\u03b9\u03bf\u03cd \u03ba\u03b1\u03b9 \u03b9\u03bd\u03bf\u03c3\u03b1\u03bd\u03af\u03b4\u03c9\u03bd<\/strong>. \u0391\u03bd \u03ba\u03b1\u03b9 \u03b4\u03b5\u03bd \u03b5\u03af\u03bd\u03b1\u03b9 \u03c0\u03bb\u03ad\u03bf\u03bd \u03b5\u03bd\u03b5\u03c1\u03b3\u03ad\u03c2, \u03c0\u03b1\u03c1\u03ad\u03c7\u03bf\u03c5\u03bd \u03b8\u03b5\u03bc\u03b5\u03bb\u03b9\u03ce\u03b4\u03b5\u03b9\u03c2 \u03b3\u03bd\u03ce\u03c3\u03b5\u03b9\u03c2 \u03b3\u03b9\u03b1 \u03c4\u03b7 \u03c3\u03c5\u03bc\u03c0\u03b5\u03c1\u03b9\u03c6\u03bf\u03c1\u03ac \u03c4\u03c9\u03bd \u03c5\u03bb\u03b9\u03ba\u03ce\u03bd \u03c0\u03bf\u03c5 \u03c3\u03c5\u03bd\u03b5\u03c7\u03af\u03b6\u03bf\u03c5\u03bd \u03bd\u03b1 \u03c0\u03b1\u03c1\u03ad\u03c7\u03bf\u03c5\u03bd \u03c0\u03bb\u03b7\u03c1\u03bf\u03c6\u03bf\u03c1\u03af\u03b5\u03c2 \u03b3\u03b9\u03b1 \u03c4\u03b9\u03c2 \u03c3\u03cd\u03b3\u03c7\u03c1\u03bf\u03bd\u03b5\u03c2 \u03bc\u03b5\u03b8\u03bf\u03b4\u03bf\u03bb\u03bf\u03b3\u03af\u03b5\u03c2 \u03b4\u03bf\u03ba\u03b9\u03bc\u03ce\u03bd \u03c4\u03c1\u03b9\u03b2\u03ae\u03c2.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\u0395\u03be\u03bf\u03c0\u03bb\u03b9\u03c3\u03bc\u03cc\u03c2 \u03b4\u03bf\u03ba\u03b9\u03bc\u03ce\u03bd \u03ba\u03b1\u03b9 \u03cc\u03c1\u03b3\u03b1\u03bd\u03b1 \u03b1\u03c0\u03cc \u03c4\u03b7\u03bd Cell Instruments Co., Ltd.<\/h3>\n\n\n\n<p>\u0393\u03b9\u03b1 \u03bd\u03b1 \u03b5\u03be\u03b1\u03c3\u03c6\u03b1\u03bb\u03b9\u03c3\u03c4\u03b5\u03af \u03b7 \u03b1\u03ba\u03c1\u03af\u03b2\u03b5\u03b9\u03b1 \u03c3\u03c4\u03b7\u03bd <em>\u0394\u03bf\u03ba\u03b9\u03bc\u03ae \u03c4\u03c1\u03b9\u03b2\u03ae\u03c2 ASTM<\/em>, \u03b7 \u03b5\u03c0\u03b9\u03bb\u03bf\u03b3\u03ae \u03c4\u03bf\u03c5 \u03c3\u03c9\u03c3\u03c4\u03bf\u03cd \u03b5\u03be\u03bf\u03c0\u03bb\u03b9\u03c3\u03bc\u03bf\u03cd \u03b5\u03af\u03bd\u03b1\u03b9 \u03b1\u03c0\u03b1\u03c1\u03b1\u03af\u03c4\u03b7\u03c4\u03b7. \u03a4\u03bf Cell Instruments \u03c0\u03c1\u03bf\u03c3\u03c6\u03ad\u03c1\u03b5\u03b9:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u0394\u03bf\u03ba\u03b9\u03bc\u03b1\u03c3\u03c4\u03ad\u03c2 \u03c3\u03c5\u03bd\u03c4\u03b5\u03bb\u03b5\u03c3\u03c4\u03ae \u03c4\u03c1\u03b9\u03b2\u03ae\u03c2<\/strong> \u03bc\u03b5:\n<ul class=\"wp-block-list\">\n<li>\u0391\u03bd\u03af\u03c7\u03bd\u03b5\u03c5\u03c3\u03b7 \u03b4\u03cd\u03bd\u03b1\u03bc\u03b7\u03c2 \u03c3\u03b5 \u03c0\u03c1\u03b1\u03b3\u03bc\u03b1\u03c4\u03b9\u03ba\u03cc \u03c7\u03c1\u03cc\u03bd\u03bf<\/li>\n\n\n\n<li>\u03a1\u03c5\u03b8\u03bc\u03b9\u03b6\u03cc\u03bc\u03b5\u03bd\u03b5\u03c2 \u03c4\u03b1\u03c7\u03cd\u03c4\u03b7\u03c4\u03b5\u03c2 \u03b4\u03bf\u03ba\u03b9\u03bc\u03ae\u03c2 (\u03c3\u03cd\u03bc\u03c6\u03c9\u03bd\u03b1 \u03bc\u03b5 \u03c4\u03bf ASTM D1894)<\/li>\n\n\n\n<li>\u0395\u03c0\u03af\u03c0\u03b5\u03b4\u03b1 \u03b4\u03bf\u03ba\u03b9\u03bc\u03ce\u03bd \u03b5\u03bb\u03b5\u03b3\u03c7\u03cc\u03bc\u03b5\u03bd\u03b7\u03c2 \u03b8\u03b5\u03c1\u03bc\u03bf\u03ba\u03c1\u03b1\u03c3\u03af\u03b1\u03c2<\/li>\n\n\n\n<li>\u0388\u03be\u03bf\u03b4\u03bf\u03c2 \u03ba\u03b1\u03b9 \u03b1\u03bd\u03ac\u03bb\u03c5\u03c3\u03b7 \u03c8\u03b7\u03c6\u03b9\u03b1\u03ba\u03ce\u03bd \u03b4\u03b5\u03b4\u03bf\u03bc\u03ad\u03bd\u03c9\u03bd<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img decoding=\"async\" width=\"600\" height=\"400\" src=\"https:\/\/www.coefficientfriction.com\/wp-content\/uploads\/2025\/05\/astm-friction-testing-machine.webp\" alt=\"\" class=\"wp-image-432\" srcset=\"https:\/\/www.coefficientfriction.com\/wp-content\/uploads\/2025\/05\/astm-friction-testing-machine.webp 600w, https:\/\/www.coefficientfriction.com\/wp-content\/uploads\/2025\/05\/astm-friction-testing-machine-300x200.webp 300w, https:\/\/www.coefficientfriction.com\/wp-content\/uploads\/2025\/05\/astm-friction-testing-machine-18x12.webp 18w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/figure>\n\n\n\n<p>\u03a4\u03b1 \u03cc\u03c1\u03b3\u03b1\u03bd\u03ac \u03bc\u03b1\u03c2 \u03b5\u03af\u03bd\u03b1\u03b9 <strong>\u03c0\u03c1\u03bf\u03c3\u03b1\u03c1\u03bc\u03cc\u03c3\u03b9\u03bc\u03bf<\/strong> \u03b3\u03b9\u03b1 \u03bc\u03bf\u03bd\u03b1\u03b4\u03b9\u03ba\u03ac \u03c5\u03bb\u03b9\u03ba\u03ac \u03ae \u03b3\u03c1\u03b1\u03bc\u03bc\u03ad\u03c2 \u03b1\u03c5\u03c4\u03bf\u03bc\u03b1\u03c4\u03b9\u03c3\u03bc\u03bf\u03cd, \u03ba\u03b1\u03b9 \u03c5\u03c0\u03bf\u03c3\u03c4\u03ae\u03c1\u03b9\u03be\u03b7 \u03b4\u03bf\u03ba\u03b9\u03bc\u03ce\u03bd \u03c4\u03c1\u03b9\u03b2\u03ae\u03c2 \u03b1\u03bd\u03ac <em>ASTM D1894, D202, D4917, D4918,<\/em> \u03ba\u03b1\u03b9 <em>D4521<\/em> \u03c0\u03c1\u03cc\u03c4\u03c5\u03c0\u03b1. \u0392\u03b9\u03bf\u03bc\u03b7\u03c7\u03b1\u03bd\u03af\u03b5\u03c2 \u03cc\u03c0\u03c9\u03c2 <strong>\u03c3\u03c5\u03c3\u03ba\u03b5\u03c5\u03b1\u03c3\u03af\u03b1, \u03b7\u03bb\u03b5\u03ba\u03c4\u03c1\u03bf\u03bd\u03b9\u03ba\u03ac, \u03c6\u03b1\u03c1\u03bc\u03b1\u03ba\u03b5\u03c5\u03c4\u03b9\u03ba\u03ac \u03c0\u03c1\u03bf\u03ca\u03cc\u03bd\u03c4\u03b1<\/strong>, \u03ba\u03b1\u03b9 <strong>\u03ba\u03bb\u03c9\u03c3\u03c4\u03bf\u03cb\u03c6\u03b1\u03bd\u03c4\u03bf\u03c5\u03c1\u03b3\u03b9\u03ba\u03ac \u03c0\u03c1\u03bf\u03ca\u03cc\u03bd\u03c4\u03b1<\/strong> \u03b2\u03b1\u03c3\u03af\u03b6\u03bf\u03bd\u03c4\u03b1\u03b9 \u03c3\u03c4\u03b9\u03c2 \u03bb\u03cd\u03c3\u03b5\u03b9\u03c2 \u03bc\u03b1\u03c2 \u03b3\u03b9\u03b1 \u03c3\u03c5\u03bd\u03b5\u03c0\u03ae, \u03ba\u03b1\u03bd\u03bf\u03bd\u03b9\u03c3\u03c4\u03b9\u03ba\u03ac \u03c3\u03c5\u03bc\u03b2\u03b1\u03c4\u03ac \u03b1\u03c0\u03bf\u03c4\u03b5\u03bb\u03ad\u03c3\u03bc\u03b1\u03c4\u03b1.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u0392\u03ad\u03bb\u03c4\u03b9\u03c3\u03c4\u03b5\u03c2 \u03c0\u03c1\u03b1\u03ba\u03c4\u03b9\u03ba\u03ad\u03c2 \u03b3\u03b9\u03b1 \u03b1\u03ba\u03c1\u03b9\u03b2\u03b5\u03af\u03c2 \u03b4\u03bf\u03ba\u03b9\u03bc\u03ad\u03c2 \u03c4\u03c1\u03b9\u03b2\u03ae\u03c2<\/h2>\n\n\n\n<p>\u0392\u03b5\u03bb\u03c4\u03af\u03c9\u03c3\u03b7 \u03c4\u03b7\u03c2 \u03b1\u03ba\u03c1\u03af\u03b2\u03b5\u03b9\u03b1\u03c2 \u03ba\u03b1\u03b9 \u03c4\u03b7\u03c2 \u03b5\u03c0\u03b1\u03bd\u03b1\u03bb\u03b7\u03c8\u03b9\u03bc\u03cc\u03c4\u03b7\u03c4\u03b1\u03c2 \u03c3\u03c4\u03b7 \u03b4\u03bf\u03ba\u03b9\u03bc\u03ae \u03c4\u03c1\u03b9\u03b2\u03ae\u03c2 ASTM:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u03a7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03b9\u03b5\u03af\u03c4\u03b5 \u03c0\u03ac\u03bd\u03c4\u03b1 <strong>\u03bd\u03c9\u03c0\u03ac \u03b4\u03b5\u03af\u03b3\u03bc\u03b1\u03c4\u03b1<\/strong> \u03b3\u03b9\u03b1 \u03ba\u03ac\u03b8\u03b5 \u03b4\u03bf\u03ba\u03b9\u03bc\u03ae<\/li>\n\n\n\n<li>\u0394\u03b9\u03b1\u03c4\u03b7\u03c1\u03ae\u03c3\u03c4\u03b5 \u03c4\u03bf <strong>\u03c3\u03c5\u03bd\u03b5\u03c0\u03ae\u03c2 \u03b5\u03c0\u03b1\u03c6\u03ae \u03bc\u03b5 \u03c4\u03b7\u03bd \u03b5\u03c0\u03b9\u03c6\u03ac\u03bd\u03b5\u03b9\u03b1<\/strong> (\u03b5\u03c5\u03b8\u03c5\u03b3\u03c1\u03ac\u03bc\u03bc\u03b9\u03c3\u03b7 \u03ba\u03b1\u03c4\u03b5\u03cd\u03b8\u03c5\u03bd\u03c3\u03b7\u03c2 \u03bc\u03b7\u03c7\u03b1\u03bd\u03ae\u03c2)<\/li>\n\n\n\n<li>\u0388\u03bb\u03b5\u03b3\u03c7\u03bf\u03c2 <strong>\u03c0\u03b5\u03c1\u03b9\u03b2\u03b1\u03bb\u03bb\u03bf\u03bd\u03c4\u03b9\u03ba\u03ad\u03c2 \u03c3\u03c5\u03bd\u03b8\u03ae\u03ba\u03b5\u03c2<\/strong> (\u03b8\u03b5\u03c1\u03bc\u03bf\u03ba\u03c1\u03b1\u03c3\u03af\u03b1 \u03ba\u03b1\u03b9 \u03c5\u03b3\u03c1\u03b1\u03c3\u03af\u03b1)<\/li>\n\n\n\n<li>\u0391\u03c0\u03bf\u03c6\u03cd\u03b3\u03b5\u03c4\u03b5 \u03c4\u03bf <strong>\u03bc\u03bf\u03bb\u03c5\u03c3\u03bc\u03b1\u03c4\u03b9\u03ba\u03ad\u03c2 \u03b5\u03c0\u03b9\u03c6\u03ac\u03bd\u03b5\u03b9\u03b5\u03c2<\/strong> \u03bc\u03b5 \u03b4\u03b1\u03ba\u03c4\u03c5\u03bb\u03b9\u03ba\u03ac \u03b1\u03c0\u03bf\u03c4\u03c5\u03c0\u03ce\u03bc\u03b1\u03c4\u03b1 \u03ae \u03c3\u03ba\u03cc\u03bd\u03b7<\/li>\n\n\n\n<li>\u03a1\u03cd\u03b8\u03bc\u03b9\u03c3\u03b7 \u03c4\u03b7\u03c2 \u03c4\u03b1\u03c7\u03cd\u03c4\u03b7\u03c4\u03b1\u03c2 \u03ad\u03bb\u03be\u03b7\u03c2 \u03c3\u03b5 \u03c4\u03c5\u03c0\u03bf\u03c0\u03bf\u03b9\u03b7\u03bc\u03ad\u03bd\u03b1 \u03b5\u03c0\u03af\u03c0\u03b5\u03b4\u03b1 (\u03c0.\u03c7. 150 \u00b1 30 mm\/min)<\/li>\n<\/ul>\n\n\n\n<p><strong>\u03a3\u03c5\u03bc\u03b2\u03bf\u03c5\u03bb\u03ae \u03b5\u03c0\u03b1\u03b3\u03b3\u03b5\u03bb\u03bc\u03b1\u03c4\u03af\u03b1:<\/strong> \u0397 \u03c4\u03c1\u03b9\u03b2\u03ae \u03b5\u03af\u03bd\u03b1\u03b9 \u03bc\u03b9\u03b1 \u03b9\u03b4\u03b9\u03cc\u03c4\u03b7\u03c4\u03b1 \u03b5\u03c5\u03b1\u03af\u03c3\u03b8\u03b7\u03c4\u03b7 \u03c3\u03c4\u03b7\u03bd \u03b5\u03c0\u03b9\u03c6\u03ac\u03bd\u03b5\u03b9\u03b1. \u0391\u03ba\u03cc\u03bc\u03b7 \u03ba\u03b1\u03b9 \u03bc\u03b9\u03ba\u03c1\u03ad\u03c2 \u03b1\u03bb\u03bb\u03b1\u03b3\u03ad\u03c2 \u03c3\u03c4\u03b7\u03bd \u03b5\u03bd\u03ad\u03c1\u03b3\u03b5\u03b9\u03b1 \u03c4\u03b7\u03c2 \u03b5\u03c0\u03b9\u03c6\u03ac\u03bd\u03b5\u03b9\u03b1\u03c2, \u03c4\u03b7\u03bd \u03c4\u03c1\u03b1\u03c7\u03cd\u03c4\u03b7\u03c4\u03b1 \u03ae \u03c4\u03b7\u03bd \u03b5\u03c0\u03b5\u03be\u03b5\u03c1\u03b3\u03b1\u03c3\u03af\u03b1 (\u03c0.\u03c7. \u03b5\u03ba\u03ba\u03ad\u03bd\u03c9\u03c3\u03b7 \u03ba\u03bf\u03c1\u03ce\u03bd\u03b1) \u03b5\u03c0\u03b7\u03c1\u03b5\u03ac\u03b6\u03bf\u03c5\u03bd \u03c4\u03b1 \u03b1\u03c0\u03bf\u03c4\u03b5\u03bb\u03ad\u03c3\u03bc\u03b1\u03c4\u03b1.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u0392\u03b5\u03bb\u03c4\u03b9\u03c3\u03c4\u03bf\u03c0\u03bf\u03b9\u03ae\u03c3\u03c4\u03b5 \u03c4\u03b7\u03bd \u03b1\u03c0\u03cc\u03b4\u03bf\u03c3\u03b7 \u03c4\u03bf\u03c5 \u03c5\u03bb\u03b9\u03ba\u03bf\u03cd \u03bc\u03b5 \u03b4\u03bf\u03ba\u03b9\u03bc\u03ad\u03c2 \u03c4\u03c1\u03b9\u03b2\u03ae\u03c2 ASTM<\/h2>\n\n\n\n<p>\u039a\u03b1\u03c4\u03b1\u03ba\u03c4\u03ce\u03bd\u03c4\u03b1\u03c2 \u03c4\u03bf <em>\u0394\u03bf\u03ba\u03b9\u03bc\u03ae \u03c4\u03c1\u03b9\u03b2\u03ae\u03c2 ASTM<\/em> \u03ba\u03b1\u03b9 \u03c4\u03b1 \u03c3\u03c7\u03b5\u03c4\u03b9\u03ba\u03ac \u03c0\u03c1\u03cc\u03c4\u03c5\u03c0\u03b1 (ASTM D1894, D202, D4917, D4918 \u03ba\u03b1\u03b9 D4521) \u03b5\u03af\u03bd\u03b1\u03b9 \u03b1\u03c0\u03b1\u03c1\u03b1\u03af\u03c4\u03b7\u03c4\u03b1 \u03b3\u03b9\u03b1 \u03c4\u03bf\u03c5\u03c2 \u03b5\u03c0\u03b1\u03b3\u03b3\u03b5\u03bb\u03bc\u03b1\u03c4\u03af\u03b5\u03c2 \u03c0\u03bf\u03c5 \u03b1\u03c3\u03c7\u03bf\u03bb\u03bf\u03cd\u03bd\u03c4\u03b1\u03b9 \u03bc\u03b5 <strong>\u03b4\u03b9\u03b1\u03c3\u03c6\u03ac\u03bb\u03b9\u03c3\u03b7 \u03c0\u03bf\u03b9\u03cc\u03c4\u03b7\u03c4\u03b1\u03c2, \u03b1\u03bd\u03ac\u03c0\u03c4\u03c5\u03be\u03b7 \u03c0\u03c1\u03bf\u03ca\u03cc\u03bd\u03c4\u03c9\u03bd<\/strong>, \u03ba\u03b1\u03b9 <strong>\u03c3\u03c7\u03b5\u03b4\u03b9\u03b1\u03c3\u03bc\u03cc\u03c2 \u03c3\u03c5\u03c3\u03ba\u03b5\u03c5\u03b1\u03c3\u03af\u03b1\u03c2<\/strong>. \u0391\u03c5\u03c4\u03ad\u03c2 \u03bf\u03b9 \u03c4\u03c5\u03c0\u03bf\u03c0\u03bf\u03b9\u03b7\u03bc\u03ad\u03bd\u03b5\u03c2 \u03bc\u03ad\u03b8\u03bf\u03b4\u03bf\u03b9 \u03cc\u03c7\u03b9 \u03bc\u03cc\u03bd\u03bf \u03b5\u03c0\u03b9\u03ba\u03c5\u03c1\u03ce\u03bd\u03bf\u03c5\u03bd \u03c4\u03b7 \u03c7\u03c1\u03b7\u03c3\u03c4\u03b9\u03ba\u03cc\u03c4\u03b7\u03c4\u03b1 \u03c4\u03bf\u03c5 \u03c5\u03bb\u03b9\u03ba\u03bf\u03cd, \u03b1\u03bb\u03bb\u03ac \u03b5\u03c0\u03b9\u03c4\u03c1\u03ad\u03c0\u03bf\u03c5\u03bd \u03b5\u03c0\u03af\u03c3\u03b7\u03c2 \u03c4\u03b7 \u03c1\u03cd\u03b8\u03bc\u03b9\u03c3\u03b7 \u03c4\u03c9\u03bd \u03b5\u03c0\u03b9\u03b4\u03cc\u03c3\u03b5\u03c9\u03bd \u03b3\u03b9\u03b1 \u03b1\u03c3\u03c6\u03b1\u03bb\u03b5\u03af\u03c2, \u03b1\u03c0\u03bf\u03c4\u03b5\u03bb\u03b5\u03c3\u03bc\u03b1\u03c4\u03b9\u03ba\u03ad\u03c2 \u03ba\u03b1\u03b9 \u03b1\u03c5\u03c4\u03bf\u03bc\u03b1\u03c4\u03bf\u03c0\u03bf\u03b9\u03b7\u03bc\u03ad\u03bd\u03b5\u03c2 \u03b5\u03c6\u03b1\u03c1\u03bc\u03bf\u03b3\u03ad\u03c2. <strong>Cell Instruments<\/strong> \u03c0\u03b1\u03c1\u03ad\u03c7\u03b5\u03b9 \u03c4\u03bf <strong>\u03cc\u03c1\u03b3\u03b1\u03bd\u03b1 \u03b1\u03ba\u03c1\u03b9\u03b2\u03b5\u03af\u03b1\u03c2<\/strong> \u03ba\u03b1\u03b9 <strong>\u03c4\u03b5\u03c7\u03bd\u03b9\u03ba\u03ae \u03c5\u03c0\u03bf\u03c3\u03c4\u03ae\u03c1\u03b9\u03be\u03b7<\/strong> \u03b1\u03c0\u03b1\u03c1\u03b1\u03af\u03c4\u03b7\u03c4\u03b5\u03c2 \u03b3\u03b9\u03b1 \u03c4\u03b7\u03bd \u03b1\u03c0\u03bf\u03c4\u03b5\u03bb\u03b5\u03c3\u03bc\u03b1\u03c4\u03b9\u03ba\u03ae \u03b5\u03c6\u03b1\u03c1\u03bc\u03bf\u03b3\u03ae \u03b1\u03c5\u03c4\u03ce\u03bd \u03c4\u03c9\u03bd \u03b4\u03bf\u03ba\u03b9\u03bc\u03ce\u03bd, \u03b5\u03bd\u03b9\u03c3\u03c7\u03cd\u03bf\u03bd\u03c4\u03b1\u03c2 \u03c4\u03b7\u03bd \u03b1\u03be\u03b9\u03bf\u03c0\u03b9\u03c3\u03c4\u03af\u03b1 \u03ba\u03b1\u03b9 \u03c4\u03b7 \u03c3\u03c5\u03bc\u03bc\u03cc\u03c1\u03c6\u03c9\u03c3\u03b7 \u03c3\u03b5 \u03cc\u03bb\u03bf\u03c5\u03c2 \u03c4\u03bf\u03c5\u03c2 \u03ba\u03bb\u03ac\u03b4\u03bf\u03c5\u03c2.<\/p>","protected":false},"excerpt":{"rendered":"<p>\u0395\u03b9\u03c3\u03b1\u03b3\u03c9\u03b3\u03ae: \u0397 \u03b4\u03bf\u03ba\u03b9\u03bc\u03ae \u03c4\u03c1\u03b9\u03b2\u03ae\u03c2 ASTM \u03b5\u03af\u03bd\u03b1\u03b9 \u03ba\u03b1\u03b8\u03bf\u03c1\u03b9\u03c3\u03c4\u03b9\u03ba\u03ae\u03c2 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