{"id":527,"date":"2025-07-01T01:58:49","date_gmt":"2025-07-01T01:58:49","guid":{"rendered":"https:\/\/www.coefficientfriction.com\/?p=527"},"modified":"2025-07-01T01:58:50","modified_gmt":"2025-07-01T01:58:50","slug":"how-to-measure-coefficient-of-friction","status":"publish","type":"post","link":"https:\/\/www.coefficientfriction.com\/el\/how-to-measure-coefficient-of-friction","title":{"rendered":"\u03a0\u03ce\u03c2 \u03bd\u03b1 \u03bc\u03b5\u03c4\u03c1\u03ae\u03c3\u03b5\u03c4\u03b5 \u03c4\u03bf\u03bd \u03c3\u03c5\u03bd\u03c4\u03b5\u03bb\u03b5\u03c3\u03c4\u03ae \u03c4\u03c1\u03b9\u03b2\u03ae\u03c2: \u03a0\u03bb\u03ae\u03c1\u03b7\u03c2 \u03bf\u03b4\u03b7\u03b3\u03cc\u03c2"},"content":{"rendered":"<p>\u038c\u03c4\u03b1\u03bd \u03c0\u03c1\u03cc\u03ba\u03b5\u03b9\u03c4\u03b1\u03b9 \u03b3\u03b9\u03b1 \u03c4\u03bf\u03bd \u03c0\u03c1\u03bf\u03c3\u03b4\u03b9\u03bf\u03c1\u03b9\u03c3\u03bc\u03cc \u03c4\u03c9\u03bd \u03b5\u03c0\u03b9\u03b4\u03cc\u03c3\u03b5\u03c9\u03bd \u03c4\u03c9\u03bd \u03c5\u03bb\u03b9\u03ba\u03ce\u03bd, \u03b9\u03b4\u03af\u03c9\u03c2 \u03c3\u03c4\u03b7 \u03c3\u03c5\u03c3\u03ba\u03b5\u03c5\u03b1\u03c3\u03af\u03b1 \u03ba\u03b1\u03b9 \u03c4\u03b7\u03bd \u03ba\u03b1\u03c4\u03b1\u03c3\u03ba\u03b5\u03c5\u03ae, \u03b7 \u03ba\u03b1\u03c4\u03b1\u03bd\u03cc\u03b7\u03c3\u03b7 \u03c4\u03bf\u03c5 \u03c4\u03c1\u03cc\u03c0\u03bf\u03c5 \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 \u03b5\u03af\u03bd\u03b1\u03b9 \u03b1\u03c0\u03b1\u03c1\u03b1\u03af\u03c4\u03b7\u03c4\u03b7. \u0397 \u03bc\u03ad\u03c4\u03c1\u03b7\u03c3\u03b7 \u03b1\u03c5\u03c4\u03ae \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 \u03c4\u03c9\u03bd \u03b9\u03b4\u03b9\u03bf\u03c4\u03ae\u03c4\u03c9\u03bd \u03c4\u03c9\u03bd \u03c5\u03bb\u03b9\u03ba\u03ce\u03bd, \u03c4\u03b7 \u03b2\u03b5\u03bb\u03c4\u03b9\u03c3\u03c4\u03bf\u03c0\u03bf\u03af\u03b7\u03c3\u03b7 \u03c4\u03c9\u03bd \u03b4\u03b9\u03b1\u03b4\u03b9\u03ba\u03b1\u03c3\u03b9\u03ce\u03bd \u03c3\u03c5\u03c3\u03ba\u03b5\u03c5\u03b1\u03c3\u03af\u03b1\u03c2 \u03ba\u03b1\u03b9 \u03c4\u03b7 \u03b4\u03b9\u03b1\u03c3\u03c6\u03ac\u03bb\u03b9\u03c3\u03b7 \u03c4\u03bf\u03c5 \u03c0\u03bf\u03b9\u03bf\u03c4\u03b9\u03ba\u03bf\u03cd \u03b5\u03bb\u03ad\u03b3\u03c7\u03bf\u03c5. \u03a3\u03b5 \u03b1\u03c5\u03c4\u03cc \u03c4\u03bf \u03ac\u03c1\u03b8\u03c1\u03bf, \u03b8\u03b1 \u03b4\u03b9\u03b5\u03c1\u03b5\u03c5\u03bd\u03ae\u03c3\u03bf\u03c5\u03bc\u03b5 \u03c4\u03b9\u03c2 \u03bc\u03b5\u03b8\u03cc\u03b4\u03bf\u03c5\u03c2 \u03ba\u03b1\u03b9 \u03c4\u03bf\u03bd \u03b5\u03be\u03bf\u03c0\u03bb\u03b9\u03c3\u03bc\u03cc \u03c0\u03bf\u03c5 \u03b5\u03bc\u03c0\u03bb\u03ad\u03ba\u03bf\u03bd\u03c4\u03b1\u03b9 \u03c3\u03c4\u03b7 \u03bc\u03ad\u03c4\u03c1\u03b7\u03c3\u03b7 \u03c4\u03bf\u03c5 \u03c3\u03c5\u03bd\u03c4\u03b5\u03bb\u03b5\u03c3\u03c4\u03ae \u03c4\u03c1\u03b9\u03b2\u03ae\u03c2, \u03b5\u03c3\u03c4\u03b9\u03ac\u03b6\u03bf\u03bd\u03c4\u03b1\u03c2 \u03c3\u03c4\u03b1 \u03c0\u03c1\u03cc\u03c4\u03c5\u03c0\u03b1 ASTM F1894 \u03ba\u03b1\u03b9 ISO 8295, \u03ba\u03b1\u03b9 \u03b8\u03b1 \u03b4\u03ce\u03c3\u03bf\u03c5\u03bc\u03b5 \u03c0\u03bb\u03b7\u03c1\u03bf\u03c6\u03bf\u03c1\u03af\u03b5\u03c2 \u03b3\u03b9\u03b1 \u03c4\u03bf \u03c0\u03ce\u03c2 \u03bf \u03bf\u03c1\u03b9\u03b6\u03cc\u03bd\u03c4\u03b9\u03bf\u03c2 \u03b5\u03bb\u03b5\u03b3\u03ba\u03c4\u03ae\u03c2 \u03c4\u03c1\u03b9\u03b2\u03ae\u03c2 COF-01 \u03c4\u03b7\u03c2 Cell Instruments \u03bc\u03c0\u03bf\u03c1\u03b5\u03af \u03bd\u03b1 \u03b2\u03b5\u03bb\u03c4\u03b9\u03ce\u03c3\u03b5\u03b9 \u03c4\u03b7\u03bd \u03b1\u03ba\u03c1\u03af\u03b2\u03b5\u03b9\u03b1 \u03c4\u03c9\u03bd \u03b4\u03bf\u03ba\u03b9\u03bc\u03ce\u03bd \u03c3\u03b1\u03c2.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u039a\u03b1\u03c4\u03b1\u03bd\u03cc\u03b7\u03c3\u03b7 \u03c4\u03bf\u03c5 \u03c3\u03c5\u03bd\u03c4\u03b5\u03bb\u03b5\u03c3\u03c4\u03ae \u03c4\u03c1\u03b9\u03b2\u03ae\u03c2<\/h2>\n\n\n\n<p>\u039f \u03c3\u03c5\u03bd\u03c4\u03b5\u03bb\u03b5\u03c3\u03c4\u03ae\u03c2 \u03c4\u03c1\u03b9\u03b2\u03ae\u03c2 (COF) \u03b5\u03af\u03bd\u03b1\u03b9 \u03ad\u03bd\u03b1 \u03bc\u03ad\u03c4\u03c1\u03bf \u03c4\u03b7\u03c2 \u03b1\u03bd\u03c4\u03af\u03c3\u03c4\u03b1\u03c3\u03b7\u03c2 \u03c0\u03bf\u03c5 \u03c3\u03c5\u03bd\u03b1\u03bd\u03c4\u03ac\u03c4\u03b1\u03b9 \u03cc\u03c4\u03b1\u03bd \u03ad\u03bd\u03b1 \u03c5\u03bb\u03b9\u03ba\u03cc \u03bf\u03bb\u03b9\u03c3\u03b8\u03b1\u03af\u03bd\u03b5\u03b9 \u03c0\u03ac\u03bd\u03c9 \u03c3\u03b5 \u03ad\u03bd\u03b1 \u03ac\u03bb\u03bb\u03bf. \u0397 \u03bc\u03ad\u03c4\u03c1\u03b7\u03c3\u03b7 \u03b1\u03c5\u03c4\u03ae \u03b5\u03af\u03bd\u03b1\u03b9 \u03ba\u03c1\u03af\u03c3\u03b9\u03bc\u03b7 \u03b3\u03b9\u03b1 \u03c4\u03b7\u03bd \u03b1\u03be\u03b9\u03bf\u03bb\u03cc\u03b3\u03b7\u03c3\u03b7 \u03c4\u03b7\u03c2 \u03b1\u03c0\u03cc\u03b4\u03bf\u03c3\u03b7\u03c2 \u03c4\u03c9\u03bd \u03c4\u03b1\u03b9\u03bd\u03b9\u03ce\u03bd, \u03c4\u03c9\u03bd \u03c6\u03cd\u03bb\u03bb\u03c9\u03bd \u03ba\u03b1\u03b9 \u03ac\u03bb\u03bb\u03c9\u03bd \u03c5\u03bb\u03b9\u03ba\u03ce\u03bd \u03c3\u03b5 \u03c0\u03b5\u03c1\u03b9\u03b2\u03ac\u03bb\u03bb\u03bf\u03bd\u03c4\u03b1 \u03c3\u03c5\u03c3\u03ba\u03b5\u03c5\u03b1\u03c3\u03af\u03b1\u03c2 \u03ba\u03b1\u03b9 \u03c0\u03b1\u03c1\u03b1\u03b3\u03c9\u03b3\u03ae\u03c2.<\/p>\n\n\n\n<p>\u03a5\u03c0\u03ac\u03c1\u03c7\u03bf\u03c5\u03bd \u03b4\u03cd\u03bf \u03ba\u03cd\u03c1\u03b9\u03bf\u03b9 \u03c4\u03cd\u03c0\u03bf\u03b9 \u03c4\u03c1\u03b9\u03b2\u03ae\u03c2 \u03c0\u03bf\u03c5 \u03bc\u03b5\u03c4\u03c1\u03ce\u03bd\u03c4\u03b1\u03b9:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u03a3\u03c4\u03b1\u03c4\u03b9\u03ba\u03ae \u03c4\u03c1\u03b9\u03b2\u03ae:<\/strong> \u0397 \u03b1\u03bd\u03c4\u03af\u03c3\u03c4\u03b1\u03c3\u03b7 \u03c0\u03bf\u03c5 \u03c3\u03c5\u03bd\u03b1\u03bd\u03c4\u03ac\u03c4\u03b1\u03b9 \u03cc\u03c4\u03b1\u03bd \u03ad\u03bd\u03b1 \u03b1\u03bd\u03c4\u03b9\u03ba\u03b5\u03af\u03bc\u03b5\u03bd\u03bf \u03b2\u03c1\u03af\u03c3\u03ba\u03b5\u03c4\u03b1\u03b9 \u03c3\u03b5 \u03b7\u03c1\u03b5\u03bc\u03af\u03b1.<\/li>\n\n\n\n<li><strong>\u0394\u03c5\u03bd\u03b1\u03bc\u03b9\u03ba\u03ae \u03c4\u03c1\u03b9\u03b2\u03ae:<\/strong> \u0397 \u03b4\u03cd\u03bd\u03b1\u03bc\u03b7 \u03c4\u03c1\u03b9\u03b2\u03ae\u03c2 \u03c0\u03bf\u03c5 \u03b5\u03bc\u03c6\u03b1\u03bd\u03af\u03b6\u03b5\u03c4\u03b1\u03b9 \u03bc\u03cc\u03bb\u03b9\u03c2 \u03c4\u03bf \u03b1\u03bd\u03c4\u03b9\u03ba\u03b5\u03af\u03bc\u03b5\u03bd\u03bf \u03b1\u03c1\u03c7\u03af\u03c3\u03b5\u03b9 \u03bd\u03b1 \u03ba\u03b9\u03bd\u03b5\u03af\u03c4\u03b1\u03b9.<\/li>\n<\/ul>\n\n\n\n<p>\u0391\u03c5\u03c4\u03ad\u03c2 \u03bf\u03b9 \u03bc\u03b5\u03c4\u03c1\u03ae\u03c3\u03b5\u03b9\u03c2 \u03b2\u03bf\u03b7\u03b8\u03bf\u03cd\u03bd \u03c4\u03bf\u03c5\u03c2 \u03ba\u03b1\u03c4\u03b1\u03c3\u03ba\u03b5\u03c5\u03b1\u03c3\u03c4\u03ad\u03c2 \u03bd\u03b1 \u03ba\u03b1\u03c4\u03b1\u03bd\u03bf\u03ae\u03c3\u03bf\u03c5\u03bd \u03c0\u03ce\u03c2 \u03c3\u03c5\u03bc\u03c0\u03b5\u03c1\u03b9\u03c6\u03ad\u03c1\u03bf\u03bd\u03c4\u03b1\u03b9 \u03c4\u03b1 \u03c5\u03bb\u03b9\u03ba\u03ac \u03c5\u03c0\u03cc \u03b4\u03b9\u03b1\u03c6\u03bf\u03c1\u03b5\u03c4\u03b9\u03ba\u03ad\u03c2 \u03c3\u03c5\u03bd\u03b8\u03ae\u03ba\u03b5\u03c2, \u03cc\u03c0\u03c9\u03c2 \u03cc\u03c4\u03b1\u03bd \u03bf\u03b9 \u03bc\u03b5\u03bc\u03b2\u03c1\u03ac\u03bd\u03b5\u03c2 \u03bf\u03bb\u03b9\u03c3\u03b8\u03b1\u03af\u03bd\u03bf\u03c5\u03bd \u03b7 \u03bc\u03af\u03b1 \u03c0\u03ac\u03bd\u03c9 \u03c3\u03c4\u03b7\u03bd \u03ac\u03bb\u03bb\u03b7 \u03ae \u03c0\u03ac\u03bd\u03c9 \u03c3\u03b5 \u03ac\u03bb\u03bb\u03b5\u03c2 \u03b5\u03c0\u03b9\u03c6\u03ac\u03bd\u03b5\u03b9\u03b5\u03c2, \u03cc\u03c0\u03c9\u03c2 \u03c4\u03bf \u03bc\u03ad\u03c4\u03b1\u03bb\u03bb\u03bf.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u0393\u03b9\u03b1\u03c4\u03af \u03b5\u03af\u03bd\u03b1\u03b9 \u03c3\u03b7\u03bc\u03b1\u03bd\u03c4\u03b9\u03ba\u03ae \u03b7 \u03bc\u03ad\u03c4\u03c1\u03b7\u03c3\u03b7 \u03c4\u03bf\u03c5 \u03c3\u03c5\u03bd\u03c4\u03b5\u03bb\u03b5\u03c3\u03c4\u03ae \u03c4\u03c1\u03b9\u03b2\u03ae\u03c2;<\/h2>\n\n\n\n<p>\u0393\u03b9\u03b1 \u03c4\u03b9\u03c2 \u03b2\u03b9\u03bf\u03bc\u03b7\u03c7\u03b1\u03bd\u03af\u03b5\u03c2 \u03c0\u03bf\u03c5 \u03b5\u03c1\u03b3\u03ac\u03b6\u03bf\u03bd\u03c4\u03b1\u03b9 \u03bc\u03b5 \u03c5\u03bb\u03b9\u03ba\u03ac \u03cc\u03c0\u03c9\u03c2 \u03c0\u03bb\u03b1\u03c3\u03c4\u03b9\u03ba\u03ad\u03c2 \u03bc\u03b5\u03bc\u03b2\u03c1\u03ac\u03bd\u03b5\u03c2, \u03c5\u03c6\u03ac\u03c3\u03bc\u03b1\u03c4\u03b1 \u03ba\u03b1\u03b9 \u03c3\u03c5\u03b3\u03ba\u03bf\u03bb\u03bb\u03b7\u03c4\u03b9\u03ba\u03ac, \u03bf\u03b9 \u03b9\u03b4\u03b9\u03cc\u03c4\u03b7\u03c4\u03b5\u03c2 \u03c4\u03c1\u03b9\u03b2\u03ae\u03c2 \u03c0\u03b1\u03af\u03b6\u03bf\u03c5\u03bd \u03c3\u03b7\u03bc\u03b1\u03bd\u03c4\u03b9\u03ba\u03cc \u03c1\u03cc\u03bb\u03bf \u03c3\u03c4\u03bf\u03bd \u03ba\u03b1\u03b8\u03bf\u03c1\u03b9\u03c3\u03bc\u03cc \u03c4\u03bf\u03c5 \u03c0\u03cc\u03c3\u03bf \u03b5\u03cd\u03ba\u03bf\u03bb\u03b1 \u03bc\u03c0\u03bf\u03c1\u03bf\u03cd\u03bd \u03bd\u03b1 \u03b5\u03c0\u03b5\u03be\u03b5\u03c1\u03b3\u03b1\u03c3\u03c4\u03bf\u03cd\u03bd, \u03bd\u03b1 \u03c7\u03b5\u03b9\u03c1\u03b9\u03c3\u03c4\u03bf\u03cd\u03bd \u03ba\u03b1\u03b9 \u03bd\u03b1 \u03c3\u03c5\u03c3\u03ba\u03b5\u03c5\u03b1\u03c3\u03c4\u03bf\u03cd\u03bd \u03c4\u03b1 \u03c5\u03bb\u03b9\u03ba\u03ac. \u0397 \u03c5\u03c8\u03b7\u03bb\u03ae \u03c4\u03c1\u03b9\u03b2\u03ae \u03bc\u03c0\u03bf\u03c1\u03b5\u03af \u03bd\u03b1 \u03bf\u03b4\u03b7\u03b3\u03ae\u03c3\u03b5\u03b9 \u03c3\u03b5 \u03bc\u03c0\u03bb\u03bf\u03ba\u03b1\u03c1\u03af\u03c3\u03bc\u03b1\u03c4\u03b1 \u03ae \u03b5\u03bc\u03c0\u03bb\u03bf\u03ba\u03ad\u03c2 \u03c3\u03c4\u03b1 \u03bc\u03b7\u03c7\u03b1\u03bd\u03ae\u03bc\u03b1\u03c4\u03b1, \u03b5\u03bd\u03ce \u03b7 \u03c0\u03bf\u03bb\u03cd \u03bc\u03b9\u03ba\u03c1\u03ae \u03c4\u03c1\u03b9\u03b2\u03ae \u03bc\u03c0\u03bf\u03c1\u03b5\u03af \u03bd\u03b1 \u03c0\u03c1\u03bf\u03ba\u03b1\u03bb\u03ad\u03c3\u03b5\u03b9 \u03ba\u03b1\u03ba\u03cc \u03c7\u03b5\u03b9\u03c1\u03b9\u03c3\u03bc\u03cc \u03ae \u03bf\u03bb\u03af\u03c3\u03b8\u03b7\u03c3\u03b7. \u039f\u03b9 \u03b1\u03ba\u03c1\u03b9\u03b2\u03b5\u03af\u03c2 \u03bc\u03b5\u03c4\u03c1\u03ae\u03c3\u03b5\u03b9\u03c2 \u03c4\u03b7\u03c2 \u03c4\u03c1\u03b9\u03b2\u03ae\u03c2 \u03b2\u03bf\u03b7\u03b8\u03bf\u03cd\u03bd \u03c3\u03c4\u03b7 \u03bb\u03b5\u03c0\u03c4\u03bf\u03bc\u03b5\u03c1\u03ae \u03c1\u03cd\u03b8\u03bc\u03b9\u03c3\u03b7 \u03c4\u03c9\u03bd \u03b4\u03b9\u03b1\u03b4\u03b9\u03ba\u03b1\u03c3\u03b9\u03ce\u03bd \u03c0\u03b1\u03c1\u03b1\u03b3\u03c9\u03b3\u03ae\u03c2, \u03c3\u03c4\u03b7 \u03b4\u03b9\u03b1\u03c3\u03c6\u03ac\u03bb\u03b9\u03c3\u03b7 \u03c3\u03c4\u03b1\u03b8\u03b5\u03c1\u03ae\u03c2 \u03c0\u03bf\u03b9\u03cc\u03c4\u03b7\u03c4\u03b1\u03c2 \u03c0\u03c1\u03bf\u03ca\u03cc\u03bd\u03c4\u03c9\u03bd \u03ba\u03b1\u03b9 \u03c3\u03c4\u03b7 \u03b2\u03b5\u03bb\u03c4\u03b9\u03c3\u03c4\u03bf\u03c0\u03bf\u03af\u03b7\u03c3\u03b7 \u03c4\u03c9\u03bd \u03c1\u03c5\u03b8\u03bc\u03af\u03c3\u03b5\u03c9\u03bd \u03c4\u03c9\u03bd \u03bc\u03b7\u03c7\u03b1\u03bd\u03b7\u03bc\u03ac\u03c4\u03c9\u03bd.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u03a0\u03c1\u03cc\u03c4\u03c5\u03c0\u03b1 \u03b3\u03b9\u03b1 \u03c4\u03b7 \u03bc\u03ad\u03c4\u03c1\u03b7\u03c3\u03b7 \u03c4\u03bf\u03c5 \u03c3\u03c5\u03bd\u03c4\u03b5\u03bb\u03b5\u03c3\u03c4\u03ae \u03c4\u03c1\u03b9\u03b2\u03ae\u03c2<\/h2>\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 \u03ba\u03b1\u03b9 \u03b7 \u03b1\u03be\u03b9\u03bf\u03c0\u03b9\u03c3\u03c4\u03af\u03b1 \u03c4\u03c9\u03bd \u03b4\u03bf\u03ba\u03b9\u03bc\u03ce\u03bd COF, \u03c7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03b9\u03bf\u03cd\u03bd\u03c4\u03b1\u03b9 \u03b4\u03cd\u03bf \u03b5\u03c5\u03c1\u03ad\u03c9\u03c2 \u03b1\u03bd\u03b1\u03b3\u03bd\u03c9\u03c1\u03b9\u03c3\u03bc\u03ad\u03bd\u03b1 \u03c0\u03c1\u03cc\u03c4\u03c5\u03c0\u03b1:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong><a href=\"https:\/\/www.coefficientfriction.com\/el\/astm-d1894\/\">ASTM D1894<\/a>:<\/strong> \u03a4\u03bf \u03c0\u03b1\u03c1\u03cc\u03bd \u03c0\u03c1\u03cc\u03c4\u03c5\u03c0\u03bf \u03ba\u03b1\u03b8\u03bf\u03c1\u03af\u03b6\u03b5\u03b9 \u03c4\u03b7 \u03bc\u03ad\u03b8\u03bf\u03b4\u03bf \u03b4\u03bf\u03ba\u03b9\u03bc\u03ae\u03c2 \u03b3\u03b9\u03b1 \u03c4\u03bf\u03bd \u03c0\u03c1\u03bf\u03c3\u03b4\u03b9\u03bf\u03c1\u03b9\u03c3\u03bc\u03cc \u03c4\u03c9\u03bd \u03c3\u03c4\u03b1\u03c4\u03b9\u03ba\u03ce\u03bd \u03ba\u03b1\u03b9 \u03ba\u03b9\u03bd\u03b7\u03c4\u03b9\u03ba\u03ce\u03bd \u03c3\u03c5\u03bd\u03c4\u03b5\u03bb\u03b5\u03c3\u03c4\u03ce\u03bd \u03c4\u03c1\u03b9\u03b2\u03ae\u03c2 \u03c4\u03c9\u03bd \u03c0\u03bb\u03b1\u03c3\u03c4\u03b9\u03ba\u03ce\u03bd \u03bc\u03b5\u03bc\u03b2\u03c1\u03b1\u03bd\u03ce\u03bd \u03ba\u03b1\u03b9 \u03c6\u03cd\u03bb\u03bb\u03c9\u03bd, \u03b9\u03b4\u03af\u03c9\u03c2 \u03b3\u03b9\u03b1 \u03b5\u03c6\u03b1\u03c1\u03bc\u03bf\u03b3\u03ad\u03c2 \u03c3\u03c5\u03c3\u03ba\u03b5\u03c5\u03b1\u03c3\u03af\u03b1\u03c2. \u0397 \u03b4\u03bf\u03ba\u03b9\u03bc\u03ae \u03ad\u03c7\u03b5\u03b9 \u03c3\u03c7\u03b5\u03b4\u03b9\u03b1\u03c3\u03c4\u03b5\u03af \u03b3\u03b9\u03b1 \u03bd\u03b1 \u03c0\u03c1\u03bf\u03c3\u03bf\u03bc\u03bf\u03b9\u03ce\u03bd\u03b5\u03b9 \u03c4\u03b9\u03c2 \u03c3\u03c5\u03bd\u03b8\u03ae\u03ba\u03b5\u03c2 \u03c3\u03c4\u03b9\u03c2 \u03bf\u03c0\u03bf\u03af\u03b5\u03c2 \u03c7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03b9\u03bf\u03cd\u03bd\u03c4\u03b1\u03b9 \u03bf\u03b9 \u03c0\u03bb\u03b1\u03c3\u03c4\u03b9\u03ba\u03ad\u03c2 \u03bc\u03b5\u03bc\u03b2\u03c1\u03ac\u03bd\u03b5\u03c2, \u03cc\u03c0\u03c9\u03c2 \u03b7 \u03b1\u03bb\u03bb\u03b7\u03bb\u03b5\u03c0\u03af\u03b4\u03c1\u03b1\u03c3\u03ae \u03c4\u03bf\u03c5\u03c2 \u03bc\u03b5 \u03ac\u03bb\u03bb\u03b5\u03c2 \u03b5\u03c0\u03b9\u03c6\u03ac\u03bd\u03b5\u03b9\u03b5\u03c2.<\/li>\n\n\n\n<li><strong><a href=\"https:\/\/www.coefficientfriction.com\/el\/iso-8295\/\">ISO 8295<\/a>:<\/strong> \u03a4\u03bf \u03c0\u03b1\u03c1\u03cc\u03bd \u03b4\u03b9\u03b5\u03b8\u03bd\u03ad\u03c2 \u03c0\u03c1\u03cc\u03c4\u03c5\u03c0\u03bf \u03b5\u03c6\u03b1\u03c1\u03bc\u03cc\u03b6\u03b5\u03c4\u03b1\u03b9 \u03c3\u03c4\u03bf\u03bd \u03c0\u03c1\u03bf\u03c3\u03b4\u03b9\u03bf\u03c1\u03b9\u03c3\u03bc\u03cc \u03c4\u03c9\u03bd \u03c3\u03c5\u03bd\u03c4\u03b5\u03bb\u03b5\u03c3\u03c4\u03ce\u03bd \u03c4\u03c1\u03b9\u03b2\u03ae\u03c2 \u03b5\u03ba\u03ba\u03af\u03bd\u03b7\u03c3\u03b7\u03c2 \u03ba\u03b1\u03b9 \u03bf\u03bb\u03af\u03c3\u03b8\u03b7\u03c3\u03b7\u03c2 \u03c4\u03c9\u03bd \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. \u0395\u03af\u03bd\u03b1\u03b9 \u03c0\u03b1\u03c1\u03cc\u03bc\u03bf\u03b9\u03bf \u03bc\u03b5 \u03c4\u03bf ASTM D1894, \u03b1\u03bb\u03bb\u03ac \u03c0\u03b5\u03c1\u03b9\u03bb\u03b1\u03bc\u03b2\u03ac\u03bd\u03b5\u03b9 \u03c3\u03c5\u03b3\u03ba\u03b5\u03ba\u03c1\u03b9\u03bc\u03ad\u03bd\u03b5\u03c2 \u03bb\u03b5\u03c0\u03c4\u03bf\u03bc\u03ad\u03c1\u03b5\u03b9\u03b5\u03c2 \u03b3\u03b9\u03b1 \u03c4\u03b7\u03bd \u03c0\u03c1\u03bf\u03b5\u03c4\u03bf\u03b9\u03bc\u03b1\u03c3\u03af\u03b1 \u03ba\u03b1\u03b9 \u03c4\u03b7\u03bd \u03c0\u03c1\u03bf\u03b5\u03c4\u03bf\u03b9\u03bc\u03b1\u03c3\u03af\u03b1 \u03c4\u03c9\u03bd \u03b4\u03b5\u03b9\u03b3\u03bc\u03ac\u03c4\u03c9\u03bd, \u03ba\u03b1\u03b8\u03b9\u03c3\u03c4\u03ce\u03bd\u03c4\u03b1\u03c2 \u03c4\u03bf \u03b9\u03b4\u03b1\u03bd\u03b9\u03ba\u03cc \u03b3\u03b9\u03b1 \u03c4\u03bf\u03bd \u03ad\u03bb\u03b5\u03b3\u03c7\u03bf \u03c0\u03bf\u03b9\u03cc\u03c4\u03b7\u03c4\u03b1\u03c2.<\/li>\n<\/ol>\n\n\n\n<p>\u039a\u03b1\u03b9 \u03c4\u03b1 \u03b4\u03cd\u03bf \u03c0\u03c1\u03cc\u03c4\u03c5\u03c0\u03b1 \u03c0\u03b5\u03c1\u03b9\u03bb\u03b1\u03bc\u03b2\u03ac\u03bd\u03bf\u03c5\u03bd \u03c4\u03b7\u03bd \u03c4\u03bf\u03c0\u03bf\u03b8\u03ad\u03c4\u03b7\u03c3\u03b7 \u03b4\u03bf\u03ba\u03b9\u03bc\u03af\u03c9\u03bd \u03c5\u03c0\u03cc \u03bf\u03bc\u03bf\u03b9\u03cc\u03bc\u03bf\u03c1\u03c6\u03b7 \u03c0\u03af\u03b5\u03c3\u03b7 \u03ba\u03b1\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 \u03ae \u03c4\u03b7 \u03b4\u03b9\u03b1\u03c4\u03ae\u03c1\u03b7\u03c3\u03b7 \u03c4\u03b7\u03c2 \u03ba\u03af\u03bd\u03b7\u03c3\u03b7\u03c2. \u039f\u03b9 \u03b4\u03bf\u03ba\u03b9\u03bc\u03ad\u03c2 \u03b1\u03c5\u03c4\u03ad\u03c2 \u03c0\u03b1\u03c1\u03ad\u03c7\u03bf\u03c5\u03bd \u03b1\u03be\u03b9\u03cc\u03c0\u03b9\u03c3\u03c4\u03b1 \u03b4\u03b5\u03b4\u03bf\u03bc\u03ad\u03bd\u03b1 \u03b3\u03b9\u03b1 \u03c4\u03bf\u03bd \u03ad\u03bb\u03b5\u03b3\u03c7\u03bf \u03c4\u03c9\u03bd \u03b9\u03b4\u03b9\u03bf\u03c4\u03ae\u03c4\u03c9\u03bd \u03c4\u03bf\u03c5 \u03c5\u03bb\u03b9\u03ba\u03bf\u03cd \u03ba\u03b1\u03b9 \u03c4\u03b7 \u03b2\u03b5\u03bb\u03c4\u03b9\u03c3\u03c4\u03bf\u03c0\u03bf\u03af\u03b7\u03c3\u03b7 \u03c4\u03b7\u03c2 \u03b1\u03c0\u03cc\u03b4\u03bf\u03c3\u03b7\u03c2 \u03c4\u03bf\u03c5 \u03c0\u03c1\u03bf\u03ca\u03cc\u03bd\u03c4\u03bf\u03c2.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u03a7\u03c1\u03ae\u03c3\u03b7 \u03bc\u03b7\u03c7\u03b1\u03bd\u03ae\u03c2 \u03b4\u03bf\u03ba\u03b9\u03bc\u03ae\u03c2 \u03c4\u03c1\u03b9\u03b2\u03ae\u03c2 \u03b3\u03b9\u03b1 \u03c4\u03b7 \u03bc\u03ad\u03c4\u03c1\u03b7\u03c3\u03b7 \u03c4\u03b7\u03c2 COF<\/h2>\n\n\n\n<p>\u0397 \u03bc\u03ad\u03c4\u03c1\u03b7\u03c3\u03b7 \u03c4\u03bf\u03c5 \u03c3\u03c5\u03bd\u03c4\u03b5\u03bb\u03b5\u03c3\u03c4\u03ae \u03c4\u03c1\u03b9\u03b2\u03ae\u03c2 \u03b1\u03c0\u03b1\u03b9\u03c4\u03b5\u03af \u03b5\u03be\u03b5\u03b9\u03b4\u03b9\u03ba\u03b5\u03c5\u03bc\u03ad\u03bd\u03bf \u03b5\u03be\u03bf\u03c0\u03bb\u03b9\u03c3\u03bc\u03cc. A <strong>\u03bc\u03b7\u03c7\u03b1\u03bd\u03ae \u03b4\u03bf\u03ba\u03b9\u03bc\u03ae\u03c2 \u03c4\u03c1\u03b9\u03b2\u03ae\u03c2<\/strong> \u03ad\u03c7\u03b5\u03b9 \u03c3\u03c7\u03b5\u03b4\u03b9\u03b1\u03c3\u03c4\u03b5\u03af \u03b3\u03b9\u03b1 \u03c4\u03b7\u03bd \u03b1\u03ba\u03c1\u03b9\u03b2\u03ae \u03bc\u03ad\u03c4\u03c1\u03b7\u03c3\u03b7 \u03c4\u03c9\u03bd \u03b4\u03c5\u03bd\u03ac\u03bc\u03b5\u03c9\u03bd \u03c0\u03bf\u03c5 \u03b1\u03c3\u03ba\u03bf\u03cd\u03bd\u03c4\u03b1\u03b9 \u03bc\u03b5\u03c4\u03b1\u03be\u03cd \u03b4\u03cd\u03bf \u03b5\u03c0\u03b9\u03c6\u03b1\u03bd\u03b5\u03b9\u03ce\u03bd. \u0391\u03c5\u03c4\u03ac \u03c4\u03b1 \u03bc\u03b7\u03c7\u03b1\u03bd\u03ae\u03bc\u03b1\u03c4\u03b1 \u03bc\u03c0\u03bf\u03c1\u03bf\u03cd\u03bd \u03bd\u03b1 \u03c0\u03c1\u03bf\u03c3\u03b1\u03c1\u03bc\u03bf\u03c3\u03c4\u03bf\u03cd\u03bd \u03b3\u03b9\u03b1 \u03bd\u03b1 \u03b4\u03bf\u03ba\u03b9\u03bc\u03ac\u03b6\u03bf\u03c5\u03bd \u03b4\u03b9\u03b1\u03c6\u03bf\u03c1\u03b5\u03c4\u03b9\u03ba\u03ac \u03c5\u03bb\u03b9\u03ba\u03ac \u03ba\u03b1\u03b9 \u03c3\u03c5\u03bd\u03b8\u03ae\u03ba\u03b5\u03c2, \u03c3\u03c5\u03bc\u03c0\u03b5\u03c1\u03b9\u03bb\u03b1\u03bc\u03b2\u03b1\u03bd\u03bf\u03bc\u03ad\u03bd\u03c9\u03bd \u03c4\u03c9\u03bd \u03bc\u03b5\u03c4\u03b1\u03b2\u03bf\u03bb\u03ce\u03bd \u03c4\u03b7\u03c2 \u03c0\u03af\u03b5\u03c3\u03b7\u03c2, \u03c4\u03b7\u03c2 \u03c4\u03b1\u03c7\u03cd\u03c4\u03b7\u03c4\u03b1\u03c2 \u03ba\u03b1\u03b9 \u03c4\u03b7\u03c2 \u03b8\u03b5\u03c1\u03bc\u03bf\u03ba\u03c1\u03b1\u03c3\u03af\u03b1\u03c2.<\/p>\n\n\n\n<p><strong>\u039c\u03b7\u03c7\u03b1\u03bd\u03ae \u03b4\u03bf\u03ba\u03b9\u03bc\u03ae\u03c2 \u03c4\u03c1\u03b9\u03b2\u03ae\u03c2 \u03a4\u03b9\u03bc\u03ae:<\/strong> \u0397 \u03c4\u03b9\u03bc\u03ae \u03b5\u03bd\u03cc\u03c2 \u03b4\u03bf\u03ba\u03b9\u03bc\u03b1\u03c3\u03c4\u03ae \u03c4\u03c1\u03b9\u03b2\u03ae\u03c2 \u03bc\u03c0\u03bf\u03c1\u03b5\u03af \u03bd\u03b1 \u03c0\u03bf\u03b9\u03ba\u03af\u03bb\u03bb\u03b5\u03b9 \u03b1\u03bd\u03ac\u03bb\u03bf\u03b3\u03b1 \u03bc\u03b5 \u03c4\u03b1 \u03c7\u03b1\u03c1\u03b1\u03ba\u03c4\u03b7\u03c1\u03b9\u03c3\u03c4\u03b9\u03ba\u03ac, \u03c4\u03b7\u03bd \u03b1\u03ba\u03c1\u03af\u03b2\u03b5\u03b9\u03b1 \u03ba\u03b1\u03b9 \u03c4\u03b9\u03c2 \u03b5\u03c0\u03b9\u03bb\u03bf\u03b3\u03ad\u03c2 \u03c0\u03c1\u03bf\u03c3\u03b1\u03c1\u03bc\u03bf\u03b3\u03ae\u03c2. \u03a3\u03c5\u03bd\u03ae\u03b8\u03c9\u03c2, \u03c4\u03b1 \u03bc\u03bf\u03bd\u03c4\u03ad\u03bb\u03b1 \u03c5\u03c8\u03b7\u03bb\u03ae\u03c2 \u03c0\u03bf\u03b9\u03cc\u03c4\u03b7\u03c4\u03b1\u03c2, \u03cc\u03c0\u03c9\u03c2 \u03c4\u03bf <strong>Cell Instruments <\/strong><a href=\"https:\/\/www.coefficientfriction.com\/el\/\"><strong>COF-01 \u039f\u03c1\u03b9\u03b6\u03cc\u03bd\u03c4\u03b9\u03bf\u03c2 \u03c4\u03cd\u03c0\u03bf\u03c2<\/strong><\/a> \u03c0\u03c1\u03bf\u03c3\u03c6\u03ad\u03c1\u03bf\u03c5\u03bd \u03c0\u03c1\u03bf\u03b7\u03b3\u03bc\u03ad\u03bd\u03b1 \u03c7\u03b1\u03c1\u03b1\u03ba\u03c4\u03b7\u03c1\u03b9\u03c3\u03c4\u03b9\u03ba\u03ac \u03ba\u03b1\u03b9 \u03b5\u03af\u03bd\u03b1\u03b9 \u03b9\u03b4\u03b1\u03bd\u03b9\u03ba\u03ac \u03c4\u03cc\u03c3\u03bf \u03b3\u03b9\u03b1 \u03c3\u03c4\u03b1\u03c4\u03b9\u03ba\u03ad\u03c2 \u03cc\u03c3\u03bf \u03ba\u03b1\u03b9 \u03b3\u03b9\u03b1 \u03b4\u03c5\u03bd\u03b1\u03bc\u03b9\u03ba\u03ad\u03c2 \u03b4\u03bf\u03ba\u03b9\u03bc\u03ad\u03c2 \u03c4\u03c1\u03b9\u03b2\u03ae\u03c2. \u03a4\u03bf \u03ba\u03cc\u03c3\u03c4\u03bf\u03c2 \u03b1\u03c0\u03bf\u03c4\u03b5\u03bb\u03b5\u03af \u03b5\u03c0\u03ad\u03bd\u03b4\u03c5\u03c3\u03b7 \u03b3\u03b9\u03b1 \u03c4\u03b7 \u03b4\u03b9\u03b1\u03c3\u03c6\u03ac\u03bb\u03b9\u03c3\u03b7 \u03b1\u03ba\u03c1\u03b9\u03b2\u03ce\u03bd \u03ba\u03b1\u03b9 \u03b5\u03c0\u03b1\u03bd\u03b1\u03bb\u03b1\u03bc\u03b2\u03b1\u03bd\u03cc\u03bc\u03b5\u03bd\u03c9\u03bd \u03b1\u03c0\u03bf\u03c4\u03b5\u03bb\u03b5\u03c3\u03bc\u03ac\u03c4\u03c9\u03bd \u03b4\u03bf\u03ba\u03b9\u03bc\u03ce\u03bd.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u0394\u03b9\u03b1\u03b4\u03b9\u03ba\u03b1\u03c3\u03af\u03b1 \u03b2\u03ae\u03bc\u03b1 \u03c0\u03c1\u03bf\u03c2 \u03b2\u03ae\u03bc\u03b1 \u03b3\u03b9\u03b1 \u03c4\u03b7 \u03bc\u03ad\u03c4\u03c1\u03b7\u03c3\u03b7 \u03c4\u03bf\u03c5 \u03c3\u03c5\u03bd\u03c4\u03b5\u03bb\u03b5\u03c3\u03c4\u03ae \u03c4\u03c1\u03b9\u03b2\u03ae\u03c2<\/h2>\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\u03bf\u03ba\u03b9\u03bc\u03af\u03c9\u03bd:<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u03a0\u03c1\u03bf\u03b5\u03c4\u03bf\u03b9\u03bc\u03ac\u03c3\u03c4\u03b5 \u03b4\u03cd\u03bf \u03b4\u03bf\u03ba\u03af\u03bc\u03b9\u03b1 \u03b4\u03bf\u03ba\u03b9\u03bc\u03ae\u03c2 \u03bc\u03b5 \u03bf\u03bc\u03bf\u03b9\u03cc\u03bc\u03bf\u03c1\u03c6\u03b7 \u03b5\u03c0\u03b9\u03c6\u03ac\u03bd\u03b5\u03b9\u03b1. \u03a4\u03bf \u03c5\u03bb\u03b9\u03ba\u03cc \u03bc\u03c0\u03bf\u03c1\u03b5\u03af \u03bd\u03b1 \u03c7\u03c1\u03b5\u03b9\u03b1\u03c3\u03c4\u03b5\u03af \u03bd\u03b1 \u03c5\u03c0\u03bf\u03c3\u03c4\u03b5\u03af \u03ba\u03bb\u03b9\u03bc\u03ac\u03ba\u03c9\u03c3\u03b7 \u03c3\u03c4\u03bf\u03c5\u03c2 23 \u00b1 2\u00b0C \u03ba\u03b1\u03b9 50 \u00b1 10% \u03c3\u03c7\u03b5\u03c4\u03b9\u03ba\u03ae \u03c5\u03b3\u03c1\u03b1\u03c3\u03af\u03b1, \u03c3\u03cd\u03bc\u03c6\u03c9\u03bd\u03b1 \u03bc\u03b5 \u03c4\u03b9\u03c2 \u03bf\u03b4\u03b7\u03b3\u03af\u03b5\u03c2 ASTM \u03ae ISO.<\/li>\n\n\n\n<li>\u0393\u03b9\u03b1 \u03c4\u03bf ASTM D1894, \u03c4\u03bf \u03b4\u03bf\u03ba\u03af\u03bc\u03b9\u03bf \u03b4\u03bf\u03ba\u03b9\u03bc\u03ae\u03c2 \u03b5\u03af\u03bd\u03b1\u03b9 \u03c3\u03c5\u03bd\u03ae\u03b8\u03c9\u03c2 \u03ad\u03bd\u03b1 \u03c0\u03bb\u03b1\u03c3\u03c4\u03b9\u03ba\u03cc \u03c6\u03b9\u03bb\u03bc \u03ae \u03c6\u03cd\u03bb\u03bb\u03bf, \u03b5\u03bd\u03ce \u03b3\u03b9\u03b1 \u03c4\u03bf ISO 8295, \u03bc\u03c0\u03bf\u03c1\u03b5\u03af \u03bd\u03b1 \u03b4\u03bf\u03ba\u03b9\u03bc\u03b1\u03c3\u03c4\u03bf\u03cd\u03bd \u03c4\u03cc\u03c3\u03bf \u03c6\u03b9\u03bb\u03bc \u03cc\u03c3\u03bf \u03ba\u03b1\u03b9 \u03ac\u03bb\u03bb\u03b1 \u03c5\u03bb\u03b9\u03ba\u03ac \u03bc\u03b5\u03c4\u03b1\u03be\u03cd \u03c4\u03bf\u03c5\u03c2.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u03a1\u03cd\u03b8\u03bc\u03b9\u03c3\u03b7 \u03c4\u03bf\u03c5 \u03bc\u03b5\u03c4\u03c1\u03b7\u03c4\u03ae \u03c4\u03c1\u03b9\u03b2\u03ae\u03c2:<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u03a4\u03bf\u03c0\u03bf\u03b8\u03b5\u03c4\u03ae\u03c3\u03c4\u03b5 \u03c4\u03bf \u03c0\u03c1\u03ce\u03c4\u03bf \u03b4\u03bf\u03ba\u03af\u03bc\u03b9\u03bf \u03c3\u03b5 \u03bc\u03b9\u03b1 \u03c3\u03c4\u03b1\u03b8\u03b5\u03c1\u03ae, \u03bf\u03c1\u03b9\u03b6\u03cc\u03bd\u03c4\u03b9\u03b1 \u03b5\u03c0\u03b9\u03c6\u03ac\u03bd\u03b5\u03b9\u03b1.<\/li>\n\n\n\n<li>\u03a0\u03c1\u03bf\u03c3\u03b1\u03c1\u03bc\u03cc\u03c3\u03c4\u03b5 \u03c4\u03bf \u03b4\u03b5\u03cd\u03c4\u03b5\u03c1\u03bf \u03b4\u03b5\u03af\u03b3\u03bc\u03b1 \u03c3\u03b5 \u03ad\u03bd\u03b1 \u03ad\u03bb\u03ba\u03b7\u03b8\u03c1\u03bf \u03ae \u03c3\u03b5 \u03bc\u03b9\u03b1 \u03ac\u03bb\u03bb\u03b7 \u03c3\u03c5\u03c3\u03ba\u03b5\u03c5\u03ae \u03b4\u03bf\u03ba\u03b9\u03bc\u03ae\u03c2, \u03b5\u03be\u03b1\u03c3\u03c6\u03b1\u03bb\u03af\u03b6\u03bf\u03bd\u03c4\u03b1\u03c2 \u03cc\u03c4\u03b9 \u03b7 \u03b4\u03cd\u03bd\u03b1\u03bc\u03b7 \u03c0\u03bf\u03c5 \u03b1\u03c3\u03ba\u03b5\u03af\u03c4\u03b1\u03b9 \u03c3\u03c4\u03b7\u03bd \u03b5\u03c0\u03b9\u03c6\u03ac\u03bd\u03b5\u03b9\u03b1 \u03b5\u03af\u03bd\u03b1\u03b9 \u03c3\u03c4\u03b1\u03b8\u03b5\u03c1\u03ae.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u0394\u03b9\u03b5\u03be\u03b1\u03b3\u03c9\u03b3\u03ae \u03c4\u03b7\u03c2 \u03b4\u03bf\u03ba\u03b9\u03bc\u03ae\u03c2:<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u039e\u03b5\u03ba\u03b9\u03bd\u03ae\u03c3\u03c4\u03b5 \u03c4\u03b7 \u03b4\u03bf\u03ba\u03b9\u03bc\u03ae \u03bc\u03b5\u03c4\u03b1\u03ba\u03b9\u03bd\u03ce\u03bd\u03c4\u03b1\u03c2 \u03c4\u03bf \u03ad\u03bb\u03ba\u03b7\u03b8\u03c1\u03bf \u03ae \u03ad\u03bd\u03b1 \u03b1\u03c0\u03cc \u03c4\u03b1 \u03b4\u03bf\u03ba\u03af\u03bc\u03b9\u03b1 \u03c3\u03c4\u03b7\u03bd \u03b5\u03c0\u03b9\u03c6\u03ac\u03bd\u03b5\u03b9\u03b1. \u039a\u03b1\u03c4\u03b1\u03b3\u03c1\u03ac\u03c6\u03b5\u03c4\u03b1\u03b9 \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 \u03ba\u03b1\u03b9 \u03c4\u03b7 \u03b4\u03b9\u03b1\u03c4\u03ae\u03c1\u03b7\u03c3\u03b7 \u03c4\u03b7\u03c2 \u03ba\u03af\u03bd\u03b7\u03c3\u03b7\u03c2.<\/li>\n\n\n\n<li>\u0393\u03b9\u03b1 \u03c3\u03c4\u03b1\u03c4\u03b9\u03ba\u03ae \u03c4\u03c1\u03b9\u03b2\u03ae, \u03ba\u03b1\u03c4\u03b1\u03b3\u03c1\u03ac\u03c8\u03c4\u03b5 \u03c4\u03b7 \u03bc\u03ad\u03b3\u03b9\u03c3\u03c4\u03b7 \u03b4\u03cd\u03bd\u03b1\u03bc\u03b7 \u03c0\u03c1\u03b9\u03bd \u03c4\u03bf \u03b4\u03b5\u03af\u03b3\u03bc\u03b1 \u03b1\u03c1\u03c7\u03af\u03c3\u03b5\u03b9 \u03bd\u03b1 \u03bf\u03bb\u03b9\u03c3\u03b8\u03b1\u03af\u03bd\u03b5\u03b9. \u0393\u03b9\u03b1 \u03b4\u03c5\u03bd\u03b1\u03bc\u03b9\u03ba\u03ae \u03c4\u03c1\u03b9\u03b2\u03ae, \u03bc\u03b5\u03c4\u03c1\u03ae\u03c3\u03c4\u03b5 \u03c4\u03b7 \u03b4\u03cd\u03bd\u03b1\u03bc\u03b7 \u03bc\u03cc\u03bb\u03b9\u03c2 \u03c4\u03bf \u03c5\u03bb\u03b9\u03ba\u03cc \u03b1\u03c1\u03c7\u03af\u03c3\u03b5\u03b9 \u03bd\u03b1 \u03ba\u03b9\u03bd\u03b5\u03af\u03c4\u03b1\u03b9.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u0395\u03c1\u03bc\u03b7\u03bd\u03b5\u03af\u03b1 \u03c4\u03c9\u03bd \u03b1\u03c0\u03bf\u03c4\u03b5\u03bb\u03b5\u03c3\u03bc\u03ac\u03c4\u03c9\u03bd:<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u039f \u03c3\u03c4\u03b1\u03c4\u03b9\u03ba\u03cc\u03c2 \u03c3\u03c5\u03bd\u03c4\u03b5\u03bb\u03b5\u03c3\u03c4\u03ae\u03c2 \u03c4\u03c1\u03b9\u03b2\u03ae\u03c2 (\u03bcs) \u03c5\u03c0\u03bf\u03bb\u03bf\u03b3\u03af\u03b6\u03b5\u03c4\u03b1\u03b9 \u03c9\u03c2 \u03bf \u03bb\u03cc\u03b3\u03bf\u03c2 \u03c4\u03b7\u03c2 \u03bc\u03ad\u03b3\u03b9\u03c3\u03c4\u03b7\u03c2 \u03b4\u03cd\u03bd\u03b1\u03bc\u03b7\u03c2 \u03c0\u03c1\u03bf\u03c2 \u03c4\u03b7\u03bd \u03ba\u03b1\u03bd\u03bf\u03bd\u03b9\u03ba\u03ae \u03b4\u03cd\u03bd\u03b1\u03bc\u03b7.<\/li>\n\n\n\n<li>\u039f \u03b4\u03c5\u03bd\u03b1\u03bc\u03b9\u03ba\u03cc\u03c2 \u03c3\u03c5\u03bd\u03c4\u03b5\u03bb\u03b5\u03c3\u03c4\u03ae\u03c2 \u03c4\u03c1\u03b9\u03b2\u03ae\u03c2 (\u03bcd) \u03c0\u03c1\u03bf\u03ba\u03cd\u03c0\u03c4\u03b5\u03b9 \u03b1\u03c0\u03cc \u03c4\u03b7 \u03bc\u03ad\u03c3\u03b7 \u03b4\u03cd\u03bd\u03b1\u03bc\u03b7 \u03ba\u03b1\u03c4\u03ac \u03c4\u03b7 \u03b4\u03b9\u03ac\u03c1\u03ba\u03b5\u03b9\u03b1 \u03c4\u03b7\u03c2 \u03ba\u03af\u03bd\u03b7\u03c3\u03b7\u03c2.<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\">\u0395\u03c0\u03b9\u03bb\u03bf\u03b3\u03ae \u03c4\u03bf\u03c5 \u03c3\u03c9\u03c3\u03c4\u03bf\u03cd \u03b5\u03bb\u03b5\u03b3\u03ba\u03c4\u03ae \u03c4\u03c1\u03b9\u03b2\u03ae\u03c2<\/h2>\n\n\n\n<p>\u03a4\u03bf <strong>Cell Instruments COF-01 \u039f\u03c1\u03b9\u03b6\u03cc\u03bd\u03c4\u03b9\u03bf\u03c2 \u03c4\u03cd\u03c0\u03bf\u03c2<\/strong> \u03b5\u03af\u03bd\u03b1\u03b9 \u03ad\u03bd\u03b1 \u03b9\u03b4\u03b9\u03b1\u03af\u03c4\u03b5\u03c1\u03b1 \u03c3\u03c5\u03bd\u03b9\u03c3\u03c4\u03ce\u03bc\u03b5\u03bd\u03bf \u03b5\u03c1\u03b3\u03b1\u03bb\u03b5\u03af\u03bf \u03b3\u03b9\u03b1 \u03c4\u03b7\u03bd \u03b1\u03ba\u03c1\u03b9\u03b2\u03ae \u03bc\u03ad\u03c4\u03c1\u03b7\u03c3\u03b7 \u03c4\u03cc\u03c3\u03bf \u03c4\u03bf\u03c5 \u03c3\u03c4\u03b1\u03c4\u03b9\u03ba\u03bf\u03cd \u03cc\u03c3\u03bf \u03ba\u03b1\u03b9 \u03c4\u03bf\u03c5 \u03b4\u03c5\u03bd\u03b1\u03bc\u03b9\u03ba\u03bf\u03cd \u03c3\u03c5\u03bd\u03c4\u03b5\u03bb\u03b5\u03c3\u03c4\u03ae \u03c4\u03c1\u03b9\u03b2\u03ae\u03c2. \u0391\u03c5\u03c4\u03cc \u03c4\u03bf \u03bc\u03bf\u03bd\u03c4\u03ad\u03bb\u03bf \u03c0\u03c1\u03bf\u03c3\u03c6\u03ad\u03c1\u03b5\u03b9 \u03b1\u03ba\u03c1\u03b9\u03b2\u03ae \u03ad\u03bb\u03b5\u03b3\u03c7\u03bf \u03c4\u03c9\u03bd \u03c3\u03c5\u03bd\u03b8\u03b7\u03ba\u03ce\u03bd \u03b4\u03bf\u03ba\u03b9\u03bc\u03ae\u03c2 \u03ba\u03b1\u03b9 \u03b5\u03be\u03b1\u03c3\u03c6\u03b1\u03bb\u03af\u03b6\u03b5\u03b9 \u03b5\u03c0\u03b1\u03bd\u03b1\u03bb\u03b1\u03bc\u03b2\u03b1\u03bd\u03cc\u03bc\u03b5\u03bd\u03b1 \u03b1\u03c0\u03bf\u03c4\u03b5\u03bb\u03ad\u03c3\u03bc\u03b1\u03c4\u03b1 \u03b3\u03b9\u03b1 \u03b4\u03b9\u03ac\u03c6\u03bf\u03c1\u03b1 \u03c5\u03bb\u03b9\u03ba\u03ac, \u03c3\u03c5\u03bc\u03c0\u03b5\u03c1\u03b9\u03bb\u03b1\u03bc\u03b2\u03b1\u03bd\u03bf\u03bc\u03ad\u03bd\u03c9\u03bd \u03c4\u03c9\u03bd \u03c0\u03bb\u03b1\u03c3\u03c4\u03b9\u03ba\u03ce\u03bd, \u03c4\u03c9\u03bd \u03c6\u03b9\u03bb\u03bc \u03ba\u03b1\u03b9 \u03c4\u03c9\u03bd \u03c5\u03c6\u03b1\u03c3\u03bc\u03ac\u03c4\u03c9\u03bd. \u0397 \u03b5\u03c5\u03b5\u03bb\u03b9\u03be\u03af\u03b1 \u03ba\u03b1\u03b9 \u03b7 \u03b5\u03c5\u03ba\u03bf\u03bb\u03af\u03b1 \u03c7\u03c1\u03ae\u03c3\u03b7\u03c2 \u03c4\u03bf\u03c5 \u03c4\u03bf \u03ba\u03b1\u03b8\u03b9\u03c3\u03c4\u03bf\u03cd\u03bd \u03c0\u03bf\u03bb\u03cd\u03c4\u03b9\u03bc\u03bf \u03b5\u03c1\u03b3\u03b1\u03bb\u03b5\u03af\u03bf \u03b3\u03b9\u03b1 \u03c4\u03bf\u03bd \u03c0\u03bf\u03b9\u03bf\u03c4\u03b9\u03ba\u03cc \u03ad\u03bb\u03b5\u03b3\u03c7\u03bf \u03ba\u03b1\u03b9 \u03c4\u03b7\u03bd \u0395&amp;\u0391 \u03c3\u03b5 \u03b2\u03b9\u03bf\u03bc\u03b7\u03c7\u03b1\u03bd\u03af\u03b5\u03c2 \u03c0\u03bf\u03c5 \u03b2\u03b1\u03c3\u03af\u03b6\u03bf\u03bd\u03c4\u03b1\u03b9 \u03c3\u03b5 \u03b1\u03ba\u03c1\u03b9\u03b2\u03b5\u03af\u03c2 \u03bc\u03b5\u03c4\u03c1\u03ae\u03c3\u03b5\u03b9\u03c2 \u03c4\u03c1\u03b9\u03b2\u03ae\u03c2.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u03a3\u03c5\u03bc\u03c0\u03ad\u03c1\u03b1\u03c3\u03bc\u03b1<\/h2>\n\n\n\n<p>\u0397 \u03bc\u03ad\u03c4\u03c1\u03b7\u03c3\u03b7 \u03c4\u03bf\u03c5 \u03c3\u03c5\u03bd\u03c4\u03b5\u03bb\u03b5\u03c3\u03c4\u03ae \u03c4\u03c1\u03b9\u03b2\u03ae\u03c2 \u03b5\u03af\u03bd\u03b1\u03b9 \u03ad\u03bd\u03b1 \u03ba\u03c1\u03af\u03c3\u03b9\u03bc\u03bf \u03b2\u03ae\u03bc\u03b1 \u03b3\u03b9\u03b1 \u03c4\u03b7\u03bd \u03ba\u03b1\u03c4\u03b1\u03bd\u03cc\u03b7\u03c3\u03b7 \u03c4\u03c9\u03bd \u03b9\u03b4\u03b9\u03bf\u03c4\u03ae\u03c4\u03c9\u03bd \u03c4\u03c9\u03bd \u03c5\u03bb\u03b9\u03ba\u03ce\u03bd \u03ba\u03b1\u03b9 \u03c4\u03b7 \u03b4\u03b9\u03b1\u03c3\u03c6\u03ac\u03bb\u03b9\u03c3\u03b7 \u03c4\u03b7\u03c2 \u03b2\u03ad\u03bb\u03c4\u03b9\u03c3\u03c4\u03b7\u03c2 \u03b1\u03c0\u03cc\u03b4\u03bf\u03c3\u03b7\u03c2 \u03c3\u03c4\u03b7\u03bd \u03ba\u03b1\u03c4\u03b1\u03c3\u03ba\u03b5\u03c5\u03ae \u03ba\u03b1\u03b9 \u03c4\u03b7 \u03c3\u03c5\u03c3\u03ba\u03b5\u03c5\u03b1\u03c3\u03af\u03b1. \u0397 \u03c4\u03ae\u03c1\u03b7\u03c3\u03b7 \u03c0\u03c1\u03bf\u03c4\u03cd\u03c0\u03c9\u03bd \u03cc\u03c0\u03c9\u03c2 \u03c4\u03bf ASTM D1894 \u03ba\u03b1\u03b9 \u03c4\u03bf <a href=\"https:\/\/www.coefficientfriction.com\/el\/iso-8295\/\">ISO 8295<\/a> \u03b5\u03b3\u03b3\u03c5\u03ac\u03c4\u03b1\u03b9 \u03cc\u03c4\u03b9 \u03bf\u03b9 \u03b4\u03bf\u03ba\u03b9\u03bc\u03ad\u03c2 \u03b4\u03b9\u03b5\u03be\u03ac\u03b3\u03bf\u03bd\u03c4\u03b1\u03b9 \u03c5\u03c0\u03cc \u03b5\u03bb\u03b5\u03b3\u03c7\u03cc\u03bc\u03b5\u03bd\u03b5\u03c2 \u03c3\u03c5\u03bd\u03b8\u03ae\u03ba\u03b5\u03c2, \u03c0\u03b1\u03c1\u03ad\u03c7\u03bf\u03bd\u03c4\u03b1\u03c2 \u03b1\u03be\u03b9\u03cc\u03c0\u03b9\u03c3\u03c4\u03b1 \u03b1\u03c0\u03bf\u03c4\u03b5\u03bb\u03ad\u03c3\u03bc\u03b1\u03c4\u03b1. \u0395\u03c0\u03b5\u03bd\u03b4\u03cd\u03bf\u03bd\u03c4\u03b1\u03c2 \u03c3\u03b5 \u03c0\u03bf\u03b9\u03bf\u03c4\u03b9\u03ba\u03cc \u03b5\u03be\u03bf\u03c0\u03bb\u03b9\u03c3\u03bc\u03cc, \u03cc\u03c0\u03c9\u03c2 \u03c4\u03bf <strong>Cell Instruments COF-01<\/strong>, \u03bf\u03b9 \u03b5\u03c4\u03b1\u03b9\u03c1\u03b5\u03af\u03b5\u03c2 \u03bc\u03c0\u03bf\u03c1\u03bf\u03cd\u03bd \u03bd\u03b1 \u03b2\u03b5\u03bb\u03c4\u03b9\u03ce\u03c3\u03bf\u03c5\u03bd \u03c4\u03b7\u03bd \u03c0\u03bf\u03b9\u03cc\u03c4\u03b7\u03c4\u03b1 \u03c4\u03c9\u03bd \u03c0\u03c1\u03bf\u03ca\u03cc\u03bd\u03c4\u03c9\u03bd \u03c4\u03bf\u03c5\u03c2 \u03ba\u03b1\u03b9 \u03bd\u03b1 \u03b5\u03be\u03bf\u03c1\u03b8\u03bf\u03bb\u03bf\u03b3\u03ae\u03c3\u03bf\u03c5\u03bd \u03c4\u03b9\u03c2 \u03b4\u03b9\u03b1\u03b4\u03b9\u03ba\u03b1\u03c3\u03af\u03b5\u03c2 \u03c0\u03b1\u03c1\u03b1\u03b3\u03c9\u03b3\u03ae\u03c2 \u03c4\u03bf\u03c5\u03c2.<\/p>\n\n\n\n<p>\u0393\u03b9\u03b1 \u03ba\u03ac\u03b8\u03b5 \u03b5\u03c0\u03b9\u03c7\u03b5\u03af\u03c1\u03b7\u03c3\u03b7 \u03c0\u03bf\u03c5 \u03b1\u03c3\u03c7\u03bf\u03bb\u03b5\u03af\u03c4\u03b1\u03b9 \u03bc\u03b5 \u03c5\u03bb\u03b9\u03ba\u03ac \u03cc\u03c0\u03c9\u03c2 \u03c4\u03b1\u03b9\u03bd\u03af\u03b5\u03c2, \u03c6\u03cd\u03bb\u03bb\u03b1 \u03ba\u03b1\u03b9 \u03ba\u03cc\u03bb\u03bb\u03b5\u03c2, \u03b7 \u03b3\u03bd\u03ce\u03c3\u03b7 \u03c4\u03bf\u03c5 \u03c4\u03c1\u03cc\u03c0\u03bf\u03c5 \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 \u03bc\u03c0\u03bf\u03c1\u03b5\u03af \u03bd\u03b1 \u03c0\u03c1\u03bf\u03c3\u03c6\u03ad\u03c1\u03b5\u03b9 \u03b1\u03bd\u03c4\u03b1\u03b3\u03c9\u03bd\u03b9\u03c3\u03c4\u03b9\u03ba\u03cc \u03c0\u03bb\u03b5\u03bf\u03bd\u03ad\u03ba\u03c4\u03b7\u03bc\u03b1 \u03c3\u03c4\u03b7\u03bd \u03b1\u03c0\u03bf\u03b4\u03bf\u03c4\u03b9\u03ba\u03cc\u03c4\u03b7\u03c4\u03b1 \u03c4\u03b7\u03c2 \u03c0\u03b1\u03c1\u03b1\u03b3\u03c9\u03b3\u03ae\u03c2 \u03ba\u03b1\u03b9 \u03c3\u03c4\u03b7 \u03b4\u03b9\u03b1\u03c3\u03c6\u03ac\u03bb\u03b9\u03c3\u03b7 \u03c4\u03b7\u03c2 \u03c0\u03bf\u03b9\u03cc\u03c4\u03b7\u03c4\u03b1\u03c2.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1024\" height=\"1024\" src=\"https:\/\/www.coefficientfriction.com\/wp-content\/uploads\/2025\/06\/cof-01.jpg\" alt=\"\" class=\"wp-image-528\" srcset=\"https:\/\/www.coefficientfriction.com\/wp-content\/uploads\/2025\/06\/cof-01.jpg 1024w, https:\/\/www.coefficientfriction.com\/wp-content\/uploads\/2025\/06\/cof-01-300x300.jpg 300w, https:\/\/www.coefficientfriction.com\/wp-content\/uploads\/2025\/06\/cof-01-150x150.jpg 150w, https:\/\/www.coefficientfriction.com\/wp-content\/uploads\/2025\/06\/cof-01-768x768.jpg 768w, https:\/\/www.coefficientfriction.com\/wp-content\/uploads\/2025\/06\/cof-01-12x12.jpg 12w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe title=\"\u039f\u03b4\u03b7\u03b3\u03cc\u03c2 \u03b3\u03b9\u03b1 \u03c4\u03b7 \u03b4\u03bf\u03ba\u03b9\u03bc\u03ae \u03c4\u03bf\u03c5 \u03c3\u03c5\u03bd\u03c4\u03b5\u03bb\u03b5\u03c3\u03c4\u03ae \u03c4\u03c1\u03b9\u03b2\u03ae\u03c2\" width=\"800\" height=\"450\" src=\"https:\/\/www.youtube.com\/embed\/wjEaNctP0KU?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><\/figure>","protected":false},"excerpt":{"rendered":"<p>When it comes to determining the performance of materials, especially in packaging and manufacturing, understanding how to measure the coefficient of friction is essential. This measurement is crucial for evaluating material properties, optimizing packaging processes, and ensuring quality control. In this article, we\u2019ll explore the methods and equipment involved in measuring the coefficient of friction, [&hellip;]<\/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-527","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>How to Measure Coefficient of Friction - Coefficient of Friction Tester<\/title>\n<meta name=\"description\" content=\"Measure coefficient of friction effectively. Discover static friction tests, friction tester machines, and pricing details.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.coefficientfriction.com\/el\/how-to-measure-coefficient-of-friction\" \/>\n<meta property=\"og:locale\" content=\"el_GR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"How to Measure Coefficient of Friction - Coefficient of Friction Tester\" \/>\n<meta property=\"og:description\" content=\"Measure coefficient of friction effectively. Discover static friction tests, friction tester machines, and pricing details.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.coefficientfriction.com\/el\/how-to-measure-coefficient-of-friction\" \/>\n<meta property=\"og:site_name\" content=\"Coefficient of Friction Tester\" \/>\n<meta property=\"article:published_time\" content=\"2025-07-01T01:58:49+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-07-01T01:58:50+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.coefficientfriction.com\/wp-content\/uploads\/2025\/06\/cof-01.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1024\" \/>\n\t<meta property=\"og:image:height\" content=\"1024\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"admin\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u03a3\u03c5\u03bd\u03c4\u03ac\u03c7\u03b8\u03b7\u03ba\u03b5 \u03b1\u03c0\u03cc\" \/>\n\t<meta name=\"twitter:data1\" content=\"admin\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u0395\u03ba\u03c4\u03b9\u03bc\u03ce\u03bc\u03b5\u03bd\u03bf\u03c2 \u03c7\u03c1\u03cc\u03bd\u03bf\u03c2 \u03b1\u03bd\u03ac\u03b3\u03bd\u03c9\u03c3\u03b7\u03c2\" \/>\n\t<meta name=\"twitter:data2\" content=\"4 \u03bb\u03b5\u03c0\u03c4\u03ac\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/www.coefficientfriction.com\/how-to-measure-coefficient-of-friction#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.coefficientfriction.com\/how-to-measure-coefficient-of-friction\"},\"author\":{\"name\":\"admin\",\"@id\":\"https:\/\/www.coefficientfriction.com\/#\/schema\/person\/fe1c1f30f9ae75dea13524ea144d6d7d\"},\"headline\":\"How to Measure Coefficient of Friction: A Complete Guide\",\"datePublished\":\"2025-07-01T01:58:49+00:00\",\"dateModified\":\"2025-07-01T01:58:50+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.coefficientfriction.com\/how-to-measure-coefficient-of-friction\"},\"wordCount\":871,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\/\/www.coefficientfriction.com\/#organization\"},\"image\":{\"@id\":\"https:\/\/www.coefficientfriction.com\/how-to-measure-coefficient-of-friction#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.coefficientfriction.com\/wp-content\/uploads\/2025\/06\/cof-01.jpg\",\"articleSection\":[\"Uncategorized\"],\"inLanguage\":\"el\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/www.coefficientfriction.com\/how-to-measure-coefficient-of-friction#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.coefficientfriction.com\/how-to-measure-coefficient-of-friction\",\"url\":\"https:\/\/www.coefficientfriction.com\/how-to-measure-coefficient-of-friction\",\"name\":\"How to Measure Coefficient of Friction - Coefficient of Friction Tester\",\"isPartOf\":{\"@id\":\"https:\/\/www.coefficientfriction.com\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/www.coefficientfriction.com\/how-to-measure-coefficient-of-friction#primaryimage\"},\"image\":{\"@id\":\"https:\/\/www.coefficientfriction.com\/how-to-measure-coefficient-of-friction#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.coefficientfriction.com\/wp-content\/uploads\/2025\/06\/cof-01.jpg\",\"datePublished\":\"2025-07-01T01:58:49+00:00\",\"dateModified\":\"2025-07-01T01:58:50+00:00\",\"description\":\"Measure coefficient of friction effectively. Discover static friction tests, friction tester machines, and pricing details.\",\"breadcrumb\":{\"@id\":\"https:\/\/www.coefficientfriction.com\/how-to-measure-coefficient-of-friction#breadcrumb\"},\"inLanguage\":\"el\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.coefficientfriction.com\/how-to-measure-coefficient-of-friction\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"el\",\"@id\":\"https:\/\/www.coefficientfriction.com\/how-to-measure-coefficient-of-friction#primaryimage\",\"url\":\"https:\/\/www.coefficientfriction.com\/wp-content\/uploads\/2025\/06\/cof-01.jpg\",\"contentUrl\":\"https:\/\/www.coefficientfriction.com\/wp-content\/uploads\/2025\/06\/cof-01.jpg\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.coefficientfriction.com\/how-to-measure-coefficient-of-friction#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/www.coefficientfriction.com\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"How to Measure Coefficient of Friction: A Complete Guide\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.coefficientfriction.com\/#website\",\"url\":\"https:\/\/www.coefficientfriction.com\/\",\"name\":\"Coefficient of Friction Tester\",\"description\":\"Material COF Test Solutoins\",\"publisher\":{\"@id\":\"https:\/\/www.coefficientfriction.com\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/www.coefficientfriction.com\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"el\"},{\"@type\":\"Organization\",\"@id\":\"https:\/\/www.coefficientfriction.com\/#organization\",\"name\":\"Coefficient of Friction Tester\",\"url\":\"https:\/\/www.coefficientfriction.com\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"el\",\"@id\":\"https:\/\/www.coefficientfriction.com\/#\/schema\/logo\/image\/\",\"url\":\"https:\/\/www.coefficientfriction.com\/wp-content\/uploads\/2025\/03\/Coefficient-of-Friction-Tester-site.webp\",\"contentUrl\":\"https:\/\/www.coefficientfriction.com\/wp-content\/uploads\/2025\/03\/Coefficient-of-Friction-Tester-site.webp\",\"width\":836,\"height\":238,\"caption\":\"Coefficient of Friction Tester\"},\"image\":{\"@id\":\"https:\/\/www.coefficientfriction.com\/#\/schema\/logo\/image\/\"}},{\"@type\":\"Person\",\"@id\":\"https:\/\/www.coefficientfriction.com\/#\/schema\/person\/fe1c1f30f9ae75dea13524ea144d6d7d\",\"name\":\"admin\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"el\",\"@id\":\"https:\/\/www.coefficientfriction.com\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/d3f8e85c3fec7fb8735942e6bc233d5c91b156505ef9cb87f4fd670fe1bb9008?s=96&d=mm&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/d3f8e85c3fec7fb8735942e6bc233d5c91b156505ef9cb87f4fd670fe1bb9008?s=96&d=mm&r=g\",\"caption\":\"admin\"},\"sameAs\":[\"https:\/\/www.coefficientfriction.com\"],\"url\":\"https:\/\/www.coefficientfriction.com\/el\/author\/admin\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"\u03a0\u03ce\u03c2 \u03bd\u03b1 \u03bc\u03b5\u03c4\u03c1\u03ae\u03c3\u03b5\u03c4\u03b5 \u03c4\u03bf \u03c3\u03c5\u03bd\u03c4\u03b5\u03bb\u03b5\u03c3\u03c4\u03ae \u03c4\u03c1\u03b9\u03b2\u03ae\u03c2 - \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","description":"\u0391\u03c0\u03bf\u03c4\u03b5\u03bb\u03b5\u03c3\u03bc\u03b1\u03c4\u03b9\u03ba\u03ae \u03bc\u03ad\u03c4\u03c1\u03b7\u03c3\u03b7 \u03c4\u03bf\u03c5 \u03c3\u03c5\u03bd\u03c4\u03b5\u03bb\u03b5\u03c3\u03c4\u03ae \u03c4\u03c1\u03b9\u03b2\u03ae\u03c2. \u0391\u03bd\u03b1\u03ba\u03b1\u03bb\u03cd\u03c8\u03c4\u03b5 \u03c4\u03b9\u03c2 \u03b4\u03bf\u03ba\u03b9\u03bc\u03ad\u03c2 \u03c3\u03c4\u03b1\u03c4\u03b9\u03ba\u03ae\u03c2 \u03c4\u03c1\u03b9\u03b2\u03ae\u03c2, \u03c4\u03b1 \u03bc\u03b7\u03c7\u03b1\u03bd\u03ae\u03bc\u03b1\u03c4\u03b1 \u03b4\u03bf\u03ba\u03b9\u03bc\u03ae\u03c2 \u03c4\u03c1\u03b9\u03b2\u03ae\u03c2 \u03ba\u03b1\u03b9 \u03c4\u03b9\u03c2 \u03bb\u03b5\u03c0\u03c4\u03bf\u03bc\u03ad\u03c1\u03b5\u03b9\u03b5\u03c2 \u03c4\u03b9\u03bc\u03bf\u03bb\u03cc\u03b3\u03b7\u03c3\u03b7\u03c2.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.coefficientfriction.com\/el\/how-to-measure-coefficient-of-friction","og_locale":"el_GR","og_type":"article","og_title":"How to Measure Coefficient of Friction - Coefficient of Friction Tester","og_description":"Measure coefficient of friction effectively. Discover static friction tests, friction tester machines, and pricing details.","og_url":"https:\/\/www.coefficientfriction.com\/el\/how-to-measure-coefficient-of-friction","og_site_name":"Coefficient of Friction Tester","article_published_time":"2025-07-01T01:58:49+00:00","article_modified_time":"2025-07-01T01:58:50+00:00","og_image":[{"width":1024,"height":1024,"url":"https:\/\/www.coefficientfriction.com\/wp-content\/uploads\/2025\/06\/cof-01.jpg","type":"image\/jpeg"}],"author":"admin","twitter_card":"summary_large_image","twitter_misc":{"\u03a3\u03c5\u03bd\u03c4\u03ac\u03c7\u03b8\u03b7\u03ba\u03b5 \u03b1\u03c0\u03cc":"admin","\u0395\u03ba\u03c4\u03b9\u03bc\u03ce\u03bc\u03b5\u03bd\u03bf\u03c2 \u03c7\u03c1\u03cc\u03bd\u03bf\u03c2 \u03b1\u03bd\u03ac\u03b3\u03bd\u03c9\u03c3\u03b7\u03c2":"4 \u03bb\u03b5\u03c0\u03c4\u03ac"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/www.coefficientfriction.com\/how-to-measure-coefficient-of-friction#article","isPartOf":{"@id":"https:\/\/www.coefficientfriction.com\/how-to-measure-coefficient-of-friction"},"author":{"name":"admin","@id":"https:\/\/www.coefficientfriction.com\/#\/schema\/person\/fe1c1f30f9ae75dea13524ea144d6d7d"},"headline":"How to Measure Coefficient of Friction: A Complete Guide","datePublished":"2025-07-01T01:58:49+00:00","dateModified":"2025-07-01T01:58:50+00:00","mainEntityOfPage":{"@id":"https:\/\/www.coefficientfriction.com\/how-to-measure-coefficient-of-friction"},"wordCount":871,"commentCount":0,"publisher":{"@id":"https:\/\/www.coefficientfriction.com\/#organization"},"image":{"@id":"https:\/\/www.coefficientfriction.com\/how-to-measure-coefficient-of-friction#primaryimage"},"thumbnailUrl":"https:\/\/www.coefficientfriction.com\/wp-content\/uploads\/2025\/06\/cof-01.jpg","articleSection":["Uncategorized"],"inLanguage":"el","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/www.coefficientfriction.com\/how-to-measure-coefficient-of-friction#respond"]}]},{"@type":"WebPage","@id":"https:\/\/www.coefficientfriction.com\/how-to-measure-coefficient-of-friction","url":"https:\/\/www.coefficientfriction.com\/how-to-measure-coefficient-of-friction","name":"\u03a0\u03ce\u03c2 \u03bd\u03b1 \u03bc\u03b5\u03c4\u03c1\u03ae\u03c3\u03b5\u03c4\u03b5 \u03c4\u03bf \u03c3\u03c5\u03bd\u03c4\u03b5\u03bb\u03b5\u03c3\u03c4\u03ae \u03c4\u03c1\u03b9\u03b2\u03ae\u03c2 - \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","isPartOf":{"@id":"https:\/\/www.coefficientfriction.com\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.coefficientfriction.com\/how-to-measure-coefficient-of-friction#primaryimage"},"image":{"@id":"https:\/\/www.coefficientfriction.com\/how-to-measure-coefficient-of-friction#primaryimage"},"thumbnailUrl":"https:\/\/www.coefficientfriction.com\/wp-content\/uploads\/2025\/06\/cof-01.jpg","datePublished":"2025-07-01T01:58:49+00:00","dateModified":"2025-07-01T01:58:50+00:00","description":"\u0391\u03c0\u03bf\u03c4\u03b5\u03bb\u03b5\u03c3\u03bc\u03b1\u03c4\u03b9\u03ba\u03ae \u03bc\u03ad\u03c4\u03c1\u03b7\u03c3\u03b7 \u03c4\u03bf\u03c5 \u03c3\u03c5\u03bd\u03c4\u03b5\u03bb\u03b5\u03c3\u03c4\u03ae \u03c4\u03c1\u03b9\u03b2\u03ae\u03c2. \u0391\u03bd\u03b1\u03ba\u03b1\u03bb\u03cd\u03c8\u03c4\u03b5 \u03c4\u03b9\u03c2 \u03b4\u03bf\u03ba\u03b9\u03bc\u03ad\u03c2 \u03c3\u03c4\u03b1\u03c4\u03b9\u03ba\u03ae\u03c2 \u03c4\u03c1\u03b9\u03b2\u03ae\u03c2, \u03c4\u03b1 \u03bc\u03b7\u03c7\u03b1\u03bd\u03ae\u03bc\u03b1\u03c4\u03b1 \u03b4\u03bf\u03ba\u03b9\u03bc\u03ae\u03c2 \u03c4\u03c1\u03b9\u03b2\u03ae\u03c2 \u03ba\u03b1\u03b9 \u03c4\u03b9\u03c2 \u03bb\u03b5\u03c0\u03c4\u03bf\u03bc\u03ad\u03c1\u03b5\u03b9\u03b5\u03c2 \u03c4\u03b9\u03bc\u03bf\u03bb\u03cc\u03b3\u03b7\u03c3\u03b7\u03c2.","breadcrumb":{"@id":"https:\/\/www.coefficientfriction.com\/how-to-measure-coefficient-of-friction#breadcrumb"},"inLanguage":"el","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.coefficientfriction.com\/how-to-measure-coefficient-of-friction"]}]},{"@type":"ImageObject","inLanguage":"el","@id":"https:\/\/www.coefficientfriction.com\/how-to-measure-coefficient-of-friction#primaryimage","url":"https:\/\/www.coefficientfriction.com\/wp-content\/uploads\/2025\/06\/cof-01.jpg","contentUrl":"https:\/\/www.coefficientfriction.com\/wp-content\/uploads\/2025\/06\/cof-01.jpg"},{"@type":"BreadcrumbList","@id":"https:\/\/www.coefficientfriction.com\/how-to-measure-coefficient-of-friction#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.coefficientfriction.com\/"},{"@type":"ListItem","position":2,"name":"How to Measure Coefficient of Friction: A Complete Guide"}]},{"@type":"WebSite","@id":"https:\/\/www.coefficientfriction.com\/#website","url":"https:\/\/www.coefficientfriction.com\/","name":"\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","description":"\u03a5\u03bb\u03b9\u03ba\u03cc COF \u0394\u03bf\u03ba\u03b9\u03bc\u03ae Solutoins","publisher":{"@id":"https:\/\/www.coefficientfriction.com\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.coefficientfriction.com\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"el"},{"@type":"Organization","@id":"https:\/\/www.coefficientfriction.com\/#organization","name":"\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","url":"https:\/\/www.coefficientfriction.com\/","logo":{"@type":"ImageObject","inLanguage":"el","@id":"https:\/\/www.coefficientfriction.com\/#\/schema\/logo\/image\/","url":"https:\/\/www.coefficientfriction.com\/wp-content\/uploads\/2025\/03\/Coefficient-of-Friction-Tester-site.webp","contentUrl":"https:\/\/www.coefficientfriction.com\/wp-content\/uploads\/2025\/03\/Coefficient-of-Friction-Tester-site.webp","width":836,"height":238,"caption":"Coefficient of Friction Tester"},"image":{"@id":"https:\/\/www.coefficientfriction.com\/#\/schema\/logo\/image\/"}},{"@type":"Person","@id":"https:\/\/www.coefficientfriction.com\/#\/schema\/person\/fe1c1f30f9ae75dea13524ea144d6d7d","name":"admin","image":{"@type":"ImageObject","inLanguage":"el","@id":"https:\/\/www.coefficientfriction.com\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/d3f8e85c3fec7fb8735942e6bc233d5c91b156505ef9cb87f4fd670fe1bb9008?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/d3f8e85c3fec7fb8735942e6bc233d5c91b156505ef9cb87f4fd670fe1bb9008?s=96&d=mm&r=g","caption":"admin"},"sameAs":["https:\/\/www.coefficientfriction.com"],"url":"https:\/\/www.coefficientfriction.com\/el\/author\/admin"}]}},"_links":{"self":[{"href":"https:\/\/www.coefficientfriction.com\/el\/wp-json\/wp\/v2\/posts\/527","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.coefficientfriction.com\/el\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.coefficientfriction.com\/el\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.coefficientfriction.com\/el\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.coefficientfriction.com\/el\/wp-json\/wp\/v2\/comments?post=527"}],"version-history":[{"count":2,"href":"https:\/\/www.coefficientfriction.com\/el\/wp-json\/wp\/v2\/posts\/527\/revisions"}],"predecessor-version":[{"id":530,"href":"https:\/\/www.coefficientfriction.com\/el\/wp-json\/wp\/v2\/posts\/527\/revisions\/530"}],"wp:attachment":[{"href":"https:\/\/www.coefficientfriction.com\/el\/wp-json\/wp\/v2\/media?parent=527"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.coefficientfriction.com\/el\/wp-json\/wp\/v2\/categories?post=527"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.coefficientfriction.com\/el\/wp-json\/wp\/v2\/tags?post=527"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}