{"id":1307,"date":"2026-03-09T05:24:05","date_gmt":"2026-03-09T05:24:05","guid":{"rendered":"https:\/\/www.wrapfilmtest.com\/?p=1307"},"modified":"2026-03-09T05:24:07","modified_gmt":"2026-03-09T05:24:07","slug":"colored-stretch-film-test","status":"publish","type":"post","link":"https:\/\/www.wrapfilmtest.com\/el\/colored-stretch-film-test","title":{"rendered":"\u039a\u03b1\u03c4\u03b1\u03bd\u03cc\u03b7\u03c3\u03b7 \u03c4\u03b7\u03c2 \u03b4\u03bf\u03ba\u03b9\u03bc\u03ae\u03c2 \u03ad\u03b3\u03c7\u03c1\u03c9\u03bc\u03b7\u03c2 \u03c4\u03b1\u03b9\u03bd\u03af\u03b1\u03c2 \u03c4\u03ac\u03bd\u03c5\u03c3\u03b7\u03c2: \u039c\u03ad\u03c4\u03c1\u03b7\u03c3\u03b7 \u03c4\u03b7\u03c2 \u03b5\u03c6\u03b5\u03bb\u03ba\u03c5\u03c3\u03c4\u03b9\u03ba\u03ae\u03c2 \u03b1\u03bd\u03c4\u03bf\u03c7\u03ae\u03c2 \u03ba\u03b1\u03b9 \u03c4\u03b7\u03c2 \u03b5\u03c0\u03b9\u03bc\u03ae\u03ba\u03c5\u03bd\u03c3\u03b7\u03c2 \u03c4\u03bf\u03c5 \u03c6\u03b9\u03bb\u03bc"},"content":{"rendered":"

\u0395\u03b9\u03c3\u03b1\u03b3\u03c9\u03b3\u03ae \u03c3\u03c4\u03b7 \u03b4\u03bf\u03ba\u03b9\u03bc\u03ae \u03ad\u03b3\u03c7\u03c1\u03c9\u03bc\u03b7\u03c2 \u03c4\u03b1\u03b9\u03bd\u03af\u03b1\u03c2 \u03c4\u03ac\u03bd\u03c5\u03c3\u03b7\u03c2<\/h2>\n\n\n\n

\u039f \u0394\u03bf\u03ba\u03b9\u03bc\u03ae \u03ad\u03b3\u03c7\u03c1\u03c9\u03bc\u03b7\u03c2 \u03c4\u03b1\u03b9\u03bd\u03af\u03b1\u03c2 \u03c4\u03b5\u03bd\u03c4\u03ce\u03bc\u03b1\u03c4\u03bf\u03c2<\/strong> \u03b5\u03af\u03bd\u03b1\u03b9 \u03bc\u03b9\u03b1 \u03b1\u03c0\u03b1\u03c1\u03b1\u03af\u03c4\u03b7\u03c4\u03b7 \u03b1\u03be\u03b9\u03bf\u03bb\u03cc\u03b3\u03b7\u03c3\u03b7 \u03b3\u03b9\u03b1 \u03c4\u03b7 \u03b2\u03b9\u03bf\u03bc\u03b7\u03c7\u03b1\u03bd\u03af\u03b1 \u03c3\u03c5\u03c3\u03ba\u03b5\u03c5\u03b1\u03c3\u03af\u03b1\u03c2, \u03b5\u03b9\u03b4\u03b9\u03ba\u03ac \u03b3\u03b9\u03b1 \u03c4\u03b9\u03c2 \u03c4\u03b1\u03b9\u03bd\u03af\u03b5\u03c2 stretch \u03c0\u03bf\u03c5 \u03c7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03b9\u03bf\u03cd\u03bd\u03c4\u03b1\u03b9 \u03b3\u03b9\u03b1 \u03c4\u03b7\u03bd \u03b1\u03c3\u03c6\u03ac\u03bb\u03b9\u03c3\u03b7 \u03ba\u03b1\u03b9 \u03c4\u03b7\u03bd \u03c0\u03b5\u03c1\u03b9\u03c4\u03cd\u03bb\u03b9\u03be\u03b7 \u03c0\u03c1\u03bf\u03ca\u03cc\u03bd\u03c4\u03c9\u03bd \u03b3\u03b9\u03b1 \u03c4\u03b7 \u03bc\u03b5\u03c4\u03b1\u03c6\u03bf\u03c1\u03ac \u03ba\u03b1\u03b9 \u03c4\u03b7\u03bd \u03b1\u03c0\u03bf\u03b8\u03ae\u03ba\u03b5\u03c5\u03c3\u03b7. \u039f\u03b9 \u03c4\u03b1\u03b9\u03bd\u03af\u03b5\u03c2 stretch \u03b4\u03b9\u03b1\u03c4\u03af\u03b8\u03b5\u03bd\u03c4\u03b1\u03b9 \u03c3\u03b5 \u03b4\u03b9\u03ac\u03c6\u03bf\u03c1\u03b1 \u03c7\u03c1\u03ce\u03bc\u03b1\u03c4\u03b1 \u03ba\u03b1\u03b9 \u03c3\u03c5\u03bd\u03b8\u03ad\u03c3\u03b5\u03b9\u03c2 \u03ba\u03b1\u03b9 \u03b7 \u03b1\u03c0\u03cc\u03b4\u03bf\u03c3\u03ae \u03c4\u03bf\u03c5\u03c2 \u03c0\u03c1\u03ad\u03c0\u03b5\u03b9 \u03bd\u03b1 \u03b5\u03bb\u03ad\u03b3\u03c7\u03b5\u03c4\u03b1\u03b9 \u03b3\u03b9\u03b1 \u03bd\u03b1 \u03b4\u03b9\u03b1\u03c3\u03c6\u03b1\u03bb\u03af\u03b6\u03b5\u03c4\u03b1\u03b9 \u03cc\u03c4\u03b9 \u03c0\u03bb\u03b7\u03c1\u03bf\u03cd\u03bd \u03c4\u03b1 \u03b1\u03c0\u03b1\u03b9\u03c4\u03bf\u03cd\u03bc\u03b5\u03bd\u03b1 \u03c0\u03c1\u03cc\u03c4\u03c5\u03c0\u03b1 \u03b1\u03bd\u03c4\u03bf\u03c7\u03ae\u03c2 \u03ba\u03b1\u03b9 \u03b1\u03bd\u03b8\u03b5\u03ba\u03c4\u03b9\u03ba\u03cc\u03c4\u03b7\u03c4\u03b1\u03c2.<\/p>\n\n\n\n

\u03a4\u03bf \u03ac\u03c1\u03b8\u03c1\u03bf \u03b1\u03c5\u03c4\u03cc \u03b4\u03b9\u03b5\u03c1\u03b5\u03c5\u03bd\u03ac \u03c4\u03bf \u03b4\u03bf\u03ba\u03b9\u03bc\u03ae \u03c0\u03bb\u03b1\u03c3\u03c4\u03b9\u03ba\u03ae\u03c2 \u03b1\u03bd\u03c4\u03bf\u03c7\u03ae\u03c2 \u03c3\u03b5 \u03b5\u03c6\u03b5\u03bb\u03ba\u03c5\u03c3\u03bc\u03cc<\/strong>, \u03b5\u03c3\u03c4\u03b9\u03ac\u03b6\u03bf\u03bd\u03c4\u03b1\u03c2 \u03c3\u03c4\u03b7\u03bd \u0394\u03bf\u03ba\u03b9\u03bc\u03ae \u03ad\u03b3\u03c7\u03c1\u03c9\u03bc\u03b7\u03c2 \u03c4\u03b1\u03b9\u03bd\u03af\u03b1\u03c2 \u03c4\u03b5\u03bd\u03c4\u03ce\u03bc\u03b1\u03c4\u03bf\u03c2<\/strong> \u03ba\u03b1\u03b9 \u03c4\u03b7 \u03c3\u03b7\u03bc\u03b1\u03c3\u03af\u03b1 \u03c4\u03b7\u03c2 \u03b3\u03b9\u03b1 \u03c4\u03b7 \u03b4\u03b9\u03b1\u03c3\u03c6\u03ac\u03bb\u03b9\u03c3\u03b7 \u03bb\u03cd\u03c3\u03b5\u03c9\u03bd \u03c3\u03c5\u03c3\u03ba\u03b5\u03c5\u03b1\u03c3\u03af\u03b1\u03c2 \u03c5\u03c8\u03b7\u03bb\u03ae\u03c2 \u03c0\u03bf\u03b9\u03cc\u03c4\u03b7\u03c4\u03b1\u03c2. \u0398\u03b1 \u03c3\u03c5\u03b6\u03b7\u03c4\u03ae\u03c3\u03bf\u03c5\u03bc\u03b5 \u03b5\u03c0\u03af\u03c3\u03b7\u03c2 \u03c3\u03b7\u03bc\u03b1\u03bd\u03c4\u03b9\u03ba\u03ac \u03c0\u03c1\u03cc\u03c4\u03c5\u03c0\u03b1 \u03b4\u03bf\u03ba\u03b9\u03bc\u03ce\u03bd \u03cc\u03c0\u03c9\u03c2 ASTM D882<\/a><\/strong>, \u03bf\u03b9 \u03bf\u03c0\u03bf\u03af\u03b5\u03c2 \u03c0\u03b1\u03c1\u03ad\u03c7\u03bf\u03c5\u03bd \u03ba\u03b1\u03c4\u03b5\u03c5\u03b8\u03c5\u03bd\u03c4\u03ae\u03c1\u03b9\u03b5\u03c2 \u03b3\u03c1\u03b1\u03bc\u03bc\u03ad\u03c2 \u03b3\u03b9\u03b1 \u03c4\u03b7 \u03bc\u03ad\u03c4\u03c1\u03b7\u03c3\u03b7 \u03b1\u03bd\u03c4\u03bf\u03c7\u03ae \u03c3\u03b5 \u03b5\u03c6\u03b5\u03bb\u03ba\u03c5\u03c3\u03bc\u03cc \u03c6\u03b9\u03bb\u03bc<\/strong> \u03ba\u03b1\u03b9 \u03b5\u03c0\u03b9\u03bc\u03ae\u03ba\u03c5\u03bd\u03c3\u03b7<\/strong>.<\/p>\n\n\n\n

\"\u0388\u03b3\u03c7\u03c1\u03c9\u03bc\u03b7<\/figure>\n\n\n\n

\u0397 \u03c3\u03b7\u03bc\u03b1\u03c3\u03af\u03b1 \u03c4\u03b7\u03c2 \u03b4\u03bf\u03ba\u03b9\u03bc\u03ae\u03c2 \u03c0\u03bb\u03b1\u03c3\u03c4\u03b9\u03ba\u03ae\u03c2 \u03b5\u03c6\u03b5\u03bb\u03ba\u03c5\u03c3\u03c4\u03b9\u03ba\u03ae\u03c2 \u03b1\u03bd\u03c4\u03bf\u03c7\u03ae\u03c2<\/h2>\n\n\n\n

\u039f \u03b4\u03bf\u03ba\u03b9\u03bc\u03ae \u03c0\u03bb\u03b1\u03c3\u03c4\u03b9\u03ba\u03ae\u03c2 \u03b1\u03bd\u03c4\u03bf\u03c7\u03ae\u03c2 \u03c3\u03b5 \u03b5\u03c6\u03b5\u03bb\u03ba\u03c5\u03c3\u03bc\u03cc<\/strong> \u03c7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03b9\u03b5\u03af\u03c4\u03b1\u03b9 \u03b3\u03b9\u03b1 \u03bd\u03b1 \u03b5\u03ba\u03c4\u03b9\u03bc\u03b7\u03b8\u03b5\u03af \u03c0\u03cc\u03c3\u03bf \u03b9\u03c3\u03c7\u03c5\u03c1\u03ae \u03b5\u03af\u03bd\u03b1\u03b9 \u03bc\u03b9\u03b1 \u03c0\u03bb\u03b1\u03c3\u03c4\u03b9\u03ba\u03ae \u03bc\u03b5\u03bc\u03b2\u03c1\u03ac\u03bd\u03b7 \u03cc\u03c4\u03b1\u03bd \u03c4\u03b5\u03bd\u03c4\u03ce\u03bd\u03b5\u03c4\u03b1\u03b9. \u0391\u03c5\u03c4\u03cc \u03b5\u03af\u03bd\u03b1\u03b9 \u03b9\u03b4\u03b9\u03b1\u03af\u03c4\u03b5\u03c1\u03b1 \u03c3\u03b7\u03bc\u03b1\u03bd\u03c4\u03b9\u03ba\u03cc \u03b3\u03b9\u03b1 \u03b5\u03bb\u03b1\u03c3\u03c4\u03b9\u03ba\u03ad\u03c2 \u03bc\u03b5\u03bc\u03b2\u03c1\u03ac\u03bd\u03b5\u03c2<\/strong>, \u03ba\u03b1\u03b8\u03ce\u03c2 \u03b7 \u03c0\u03c1\u03c9\u03c4\u03b1\u03c1\u03c7\u03b9\u03ba\u03ae \u03c4\u03bf\u03c5\u03c2 \u03bb\u03b5\u03b9\u03c4\u03bf\u03c5\u03c1\u03b3\u03af\u03b1 \u03b5\u03af\u03bd\u03b1\u03b9 \u03bd\u03b1 \u03c4\u03b5\u03bd\u03c4\u03ce\u03bd\u03bf\u03c5\u03bd \u03ba\u03b1\u03b9 \u03bd\u03b1 \u03c3\u03c5\u03b3\u03ba\u03c1\u03b1\u03c4\u03bf\u03cd\u03bd \u03c3\u03c6\u03b9\u03c7\u03c4\u03ac \u03c4\u03b1 \u03c0\u03c1\u03bf\u03ca\u03cc\u03bd\u03c4\u03b1, \u03b4\u03b9\u03b1\u03c4\u03b7\u03c1\u03ce\u03bd\u03c4\u03b1\u03c2 \u03c0\u03b1\u03c1\u03ac\u03bb\u03bb\u03b7\u03bb\u03b1 \u03c4\u03b7\u03bd \u03b1\u03bd\u03b8\u03b5\u03ba\u03c4\u03b9\u03ba\u03cc\u03c4\u03b7\u03c4\u03ac \u03c4\u03bf\u03c5\u03c2 \u03ba\u03b1\u03c4\u03ac \u03c4\u03b7\u03bd \u03b1\u03c0\u03bf\u03b8\u03ae\u03ba\u03b5\u03c5\u03c3\u03b7 \u03ba\u03b1\u03b9 \u03c4\u03b7 \u03bc\u03b5\u03c4\u03b1\u03c6\u03bf\u03c1\u03ac.<\/p>\n\n\n\n

\u03a0\u03ce\u03c2 \u03bb\u03b5\u03b9\u03c4\u03bf\u03c5\u03c1\u03b3\u03b5\u03af \u03c4\u03bf \u03c4\u03b5\u03c3\u03c4:<\/h2>\n\n\n\n
    \n
  • \u0395\u03b3\u03ba\u03b1\u03c4\u03ac\u03c3\u03c4\u03b1\u03c3\u03b7 \u03b4\u03bf\u03ba\u03b9\u03bc\u03ae\u03c2:<\/strong> \u0388\u03bd\u03b1 \u03b4\u03b5\u03af\u03b3\u03bc\u03b1 \u03b5\u03bb\u03b1\u03c3\u03c4\u03b9\u03ba\u03cc \u03c6\u03b9\u03bb\u03bc<\/strong> \u03c0\u03b1\u03c1\u03b1\u03c3\u03ba\u03b5\u03c5\u03ac\u03b6\u03b5\u03c4\u03b1\u03b9 \u03c3\u03b5 \u03c3\u03c5\u03b3\u03ba\u03b5\u03ba\u03c1\u03b9\u03bc\u03ad\u03bd\u03bf \u03bc\u03ad\u03b3\u03b5\u03b8\u03bf\u03c2 \u03ba\u03b1\u03b9 \u03c4\u03bf\u03c0\u03bf\u03b8\u03b5\u03c4\u03b5\u03af\u03c4\u03b1\u03b9 \u03c3\u03b5 \u03bc\u03b7\u03c7\u03b1\u03bd\u03ae \u03b4\u03bf\u03ba\u03b9\u03bc\u03ae\u03c2 \u03b5\u03c6\u03b5\u03bb\u03ba\u03c5\u03c3\u03bc\u03bf\u03cd. \u03a3\u03c4\u03b7 \u03c3\u03c5\u03bd\u03ad\u03c7\u03b5\u03b9\u03b1, \u03b7 \u03bc\u03b5\u03bc\u03b2\u03c1\u03ac\u03bd\u03b7 \u03c4\u03c1\u03b1\u03b2\u03b9\u03ad\u03c4\u03b1\u03b9 \u03bc\u03b5 \u03b5\u03bb\u03b5\u03b3\u03c7\u03cc\u03bc\u03b5\u03bd\u03bf \u03c1\u03c5\u03b8\u03bc\u03cc \u03bc\u03ad\u03c7\u03c1\u03b9 \u03bd\u03b1 \u03c3\u03c0\u03ac\u03c3\u03b5\u03b9.<\/li>\n\n\n\n
  • \u039c\u03b5\u03c4\u03c1\u03ae\u03c3\u03b5\u03b9\u03c2:<\/strong> \u039a\u03b1\u03c4\u03ac \u03c4\u03b7 \u03b4\u03b9\u03ac\u03c1\u03ba\u03b5\u03b9\u03b1 \u03c4\u03b7\u03c2 \u03b4\u03bf\u03ba\u03b9\u03bc\u03ae\u03c2, \u03c4\u03cc\u03c3\u03bf \u03c4\u03bf \u03b1\u03bd\u03c4\u03bf\u03c7\u03ae \u03c3\u03b5 \u03b5\u03c6\u03b5\u03bb\u03ba\u03c5\u03c3\u03bc\u03cc<\/strong> (\u03b7 \u03b4\u03cd\u03bd\u03b1\u03bc\u03b7 \u03c0\u03bf\u03c5 \u03b1\u03c0\u03b1\u03b9\u03c4\u03b5\u03af\u03c4\u03b1\u03b9 \u03b3\u03b9\u03b1 \u03bd\u03b1 \u03c3\u03c0\u03ac\u03c3\u03b5\u03b9 \u03b7 \u03bc\u03b5\u03bc\u03b2\u03c1\u03ac\u03bd\u03b7) \u03ba\u03b1\u03b9 \u03b5\u03c0\u03b9\u03bc\u03ae\u03ba\u03c5\u03bd\u03c3\u03b7<\/strong> (\u03bf \u03b2\u03b1\u03b8\u03bc\u03cc\u03c2 \u03c3\u03c4\u03bf\u03bd \u03bf\u03c0\u03bf\u03af\u03bf \u03c4\u03bf \u03c6\u03b9\u03bb\u03bc \u03bc\u03c0\u03bf\u03c1\u03b5\u03af \u03bd\u03b1 \u03c4\u03b5\u03bd\u03c4\u03c9\u03b8\u03b5\u03af). \u0391\u03c5\u03c4\u03ad\u03c2 \u03bf\u03b9 \u03c0\u03b1\u03c1\u03ac\u03bc\u03b5\u03c4\u03c1\u03bf\u03b9 \u03b5\u03af\u03bd\u03b1\u03b9 \u03ba\u03c1\u03af\u03c3\u03b9\u03bc\u03b5\u03c2 \u03b3\u03b9\u03b1 \u03c4\u03bf\u03bd \u03c0\u03c1\u03bf\u03c3\u03b4\u03b9\u03bf\u03c1\u03b9\u03c3\u03bc\u03cc \u03c4\u03b7\u03c2 \u03ba\u03b1\u03c4\u03b1\u03bb\u03bb\u03b7\u03bb\u03cc\u03c4\u03b7\u03c4\u03b1\u03c2 \u03c4\u03b7\u03c2 \u03bc\u03b5\u03bc\u03b2\u03c1\u03ac\u03bd\u03b7\u03c2 \u03b3\u03b9\u03b1 \u03b4\u03b9\u03ac\u03c6\u03bf\u03c1\u03b5\u03c2 \u03b5\u03c6\u03b1\u03c1\u03bc\u03bf\u03b3\u03ad\u03c2.<\/li>\n<\/ul>\n\n\n\n

    \u0397 \u03b4\u03bf\u03ba\u03b9\u03bc\u03ae \u03b1\u03c5\u03c4\u03ae \u03b5\u03be\u03b1\u03c3\u03c6\u03b1\u03bb\u03af\u03b6\u03b5\u03b9 \u03cc\u03c4\u03b9 \u03c4\u03bf \u03ad\u03b3\u03c7\u03c1\u03c9\u03bc\u03b7 \u03c4\u03b1\u03b9\u03bd\u03af\u03b1 \u03c4\u03b5\u03bd\u03c4\u03ce\u03bc\u03b1\u03c4\u03bf\u03c2<\/strong> \u03ad\u03c7\u03b5\u03b9 \u03c4\u03b7\u03bd \u03b1\u03c0\u03b1\u03c1\u03b1\u03af\u03c4\u03b7\u03c4\u03b7 \u03b1\u03bd\u03c4\u03bf\u03c7\u03ae \u03b3\u03b9\u03b1 \u03bd\u03b1 \u03b1\u03c0\u03bf\u03b4\u03af\u03b4\u03b5\u03b9 \u03ba\u03b1\u03bb\u03ac \u03ba\u03ac\u03c4\u03c9 \u03b1\u03c0\u03cc \u03c4\u03b9\u03c2 \u03ba\u03b1\u03c4\u03b1\u03c0\u03bf\u03bd\u03ae\u03c3\u03b5\u03b9\u03c2 \u03c0\u03bf\u03c5 \u03b8\u03b1 \u03b1\u03bd\u03c4\u03b9\u03bc\u03b5\u03c4\u03c9\u03c0\u03af\u03c3\u03b5\u03b9 \u03ba\u03b1\u03c4\u03ac \u03c4\u03b7 \u03c7\u03c1\u03ae\u03c3\u03b7, \u03c0\u03b1\u03c1\u03ad\u03c7\u03bf\u03bd\u03c4\u03b1\u03c2 \u03b1\u03be\u03b9\u03cc\u03c0\u03b9\u03c3\u03c4\u03b7 \u03c0\u03c1\u03bf\u03c3\u03c4\u03b1\u03c3\u03af\u03b1 \u03b3\u03b9\u03b1 \u03c4\u03b1 \u03c3\u03c5\u03c3\u03ba\u03b5\u03c5\u03b1\u03c3\u03bc\u03ad\u03bd\u03b1 \u03c0\u03c1\u03bf\u03ca\u03cc\u03bd\u03c4\u03b1.<\/p>\n\n\n\n

    ASTM D882: Standard Test for Tensile Properties: The Standard Test for Tensile Properties<\/h2>\n\n\n\n

    ASTM D882-18<\/strong> \u03b5\u03af\u03bd\u03b1\u03b9 \u03b7 \u03c0\u03c1\u03cc\u03c4\u03c5\u03c0\u03b7 \u03bc\u03ad\u03b8\u03bf\u03b4\u03bf\u03c2 \u03b4\u03bf\u03ba\u03b9\u03bc\u03ae\u03c2 \u03b3\u03b9\u03b1 \u03c4\u03b7 \u03bc\u03ad\u03c4\u03c1\u03b7\u03c3\u03b7 \u03c4\u03c9\u03bd \u03b5\u03c6\u03b5\u03bb\u03ba\u03c5\u03c3\u03c4\u03b9\u03ba\u03ce\u03bd \u03b9\u03b4\u03b9\u03bf\u03c4\u03ae\u03c4\u03c9\u03bd \u03bb\u03b5\u03c0\u03c4\u03ce\u03bd \u03c0\u03bb\u03b1\u03c3\u03c4\u03b9\u03ba\u03ce\u03bd \u03c6\u03cd\u03bb\u03bb\u03c9\u03bd, \u03c3\u03c5\u03bc\u03c0\u03b5\u03c1\u03b9\u03bb\u03b1\u03bc\u03b2\u03b1\u03bd\u03bf\u03bc\u03ad\u03bd\u03c9\u03bd \u03b5\u03bb\u03b1\u03c3\u03c4\u03b9\u03ba\u03ad\u03c2 \u03bc\u03b5\u03bc\u03b2\u03c1\u03ac\u03bd\u03b5\u03c2<\/strong>. \u0397 \u03bc\u03ad\u03b8\u03bf\u03b4\u03bf\u03c2 \u03b1\u03c5\u03c4\u03ae \u03b5\u03af\u03bd\u03b1\u03b9 \u03b5\u03c5\u03c1\u03ad\u03c9\u03c2 \u03b1\u03bd\u03b1\u03b3\u03bd\u03c9\u03c1\u03b9\u03c3\u03bc\u03ad\u03bd\u03b7 \u03c3\u03c4\u03b7 \u03b2\u03b9\u03bf\u03bc\u03b7\u03c7\u03b1\u03bd\u03af\u03b1 \u03c3\u03c5\u03c3\u03ba\u03b5\u03c5\u03b1\u03c3\u03af\u03b1\u03c2 \u03b3\u03b9\u03b1 \u03c4\u03b7\u03bd \u03b1\u03be\u03b9\u03bf\u03bb\u03cc\u03b3\u03b7\u03c3\u03b7 \u03c4\u03b7\u03c2 \u03b1\u03bd\u03c4\u03bf\u03c7\u03ae \u03c3\u03b5 \u03b5\u03c6\u03b5\u03bb\u03ba\u03c5\u03c3\u03bc\u03cc<\/strong>, \u03b5\u03c0\u03b9\u03bc\u03ae\u03ba\u03c5\u03bd\u03c3\u03b7<\/strong>, \u03ba\u03b1\u03b9 \u03ac\u03bb\u03bb\u03b5\u03c2 \u03ba\u03c1\u03af\u03c3\u03b9\u03bc\u03b5\u03c2 \u03b9\u03b4\u03b9\u03cc\u03c4\u03b7\u03c4\u03b5\u03c2 \u03c4\u03c9\u03bd \u03c0\u03bb\u03b1\u03c3\u03c4\u03b9\u03ba\u03ce\u03bd \u03c4\u03b1\u03b9\u03bd\u03b9\u03ce\u03bd.<\/p>\n\n\n\n

    \u0392\u03b1\u03c3\u03b9\u03ba\u03ac \u03c3\u03c4\u03bf\u03b9\u03c7\u03b5\u03af\u03b1 \u03c4\u03bf\u03c5 ASTM D882:<\/h2>\n\n\n\n
      \n
    • \u0391\u03bd\u03c4\u03bf\u03c7\u03ae \u03c3\u03b5 \u03b5\u03c6\u03b5\u03bb\u03ba\u03c5\u03c3\u03bc\u03cc:<\/strong> \u0397 \u03bc\u03ad\u03b3\u03b9\u03c3\u03c4\u03b7 \u03b4\u03cd\u03bd\u03b1\u03bc\u03b7 \u03c0\u03bf\u03c5 \u03c4\u03bf \u03ad\u03b3\u03c7\u03c1\u03c9\u03bc\u03b7 \u03c4\u03b1\u03b9\u03bd\u03af\u03b1 \u03c4\u03b5\u03bd\u03c4\u03ce\u03bc\u03b1\u03c4\u03bf\u03c2<\/strong> \u03bc\u03c0\u03bf\u03c1\u03b5\u03af \u03bd\u03b1 \u03b1\u03bd\u03c4\u03ad\u03be\u03b5\u03b9 \u03c0\u03c1\u03b9\u03bd \u03c3\u03c0\u03ac\u03c3\u03b5\u03b9. \u0391\u03c5\u03c4\u03ae \u03b7 \u03b9\u03b4\u03b9\u03cc\u03c4\u03b7\u03c4\u03b1 \u03b5\u03af\u03bd\u03b1\u03b9 \u03b1\u03c0\u03b1\u03c1\u03b1\u03af\u03c4\u03b7\u03c4\u03b7 \u03b3\u03b9\u03b1 \u03bd\u03b1 \u03b4\u03b9\u03b1\u03c3\u03c6\u03b1\u03bb\u03b9\u03c3\u03c4\u03b5\u03af \u03cc\u03c4\u03b9 \u03b7 \u03bc\u03b5\u03bc\u03b2\u03c1\u03ac\u03bd\u03b7 \u03b8\u03b1 \u03b1\u03bd\u03c4\u03ad\u03be\u03b5\u03b9 \u03c4\u03b7\u03bd \u03c0\u03af\u03b5\u03c3\u03b7 \u03ba\u03b1\u03c4\u03ac \u03c4\u03b7 \u03b4\u03b9\u03b1\u03b4\u03b9\u03ba\u03b1\u03c3\u03af\u03b1 \u03c3\u03c5\u03c3\u03ba\u03b5\u03c5\u03b1\u03c3\u03af\u03b1\u03c2.<\/li>\n\n\n\n
    • \u0395\u03c0\u03b9\u03bc\u03ae\u03ba\u03c5\u03bd\u03c3\u03b7 \u03c3\u03b5 \u03b8\u03c1\u03b1\u03cd\u03c3\u03b7:<\/strong> \u0397 \u03c0\u03bf\u03c3\u03cc\u03c4\u03b7\u03c4\u03b1 \u03ba\u03b1\u03c4\u03ac \u03c4\u03b7\u03bd \u03bf\u03c0\u03bf\u03af\u03b1 \u03c4\u03bf \u03c6\u03b9\u03bb\u03bc \u03c4\u03b5\u03bd\u03c4\u03ce\u03bd\u03b5\u03c4\u03b1\u03b9 \u03c0\u03c1\u03b9\u03bd \u03c3\u03c0\u03ac\u03c3\u03b5\u03b9, \u03b5\u03ba\u03c6\u03c1\u03b1\u03c3\u03bc\u03ad\u03bd\u03b7 \u03c9\u03c2 \u03c0\u03bf\u03c3\u03bf\u03c3\u03c4\u03cc \u03c4\u03bf\u03c5 \u03b1\u03c1\u03c7\u03b9\u03ba\u03bf\u03cd \u03bc\u03ae\u03ba\u03bf\u03c5\u03c2. \u0397 \u03bc\u03ad\u03c4\u03c1\u03b7\u03c3\u03b7 \u03b1\u03c5\u03c4\u03ae \u03b5\u03af\u03bd\u03b1\u03b9 \u03c3\u03b7\u03bc\u03b1\u03bd\u03c4\u03b9\u03ba\u03ae \u03b5\u03c0\u03b5\u03b9\u03b4\u03ae \u03b4\u03b5\u03af\u03c7\u03bd\u03b5\u03b9 \u03c4\u03b7\u03bd \u03b5\u03c5\u03b5\u03bb\u03b9\u03be\u03af\u03b1 \u03c4\u03b7\u03c2 \u03bc\u03b5\u03bc\u03b2\u03c1\u03ac\u03bd\u03b7\u03c2 \u03ba\u03b1\u03b9 \u03c4\u03b7\u03bd \u03b9\u03ba\u03b1\u03bd\u03cc\u03c4\u03b7\u03c4\u03ac \u03c4\u03b7\u03c2 \u03bd\u03b1 \u03c0\u03c1\u03bf\u03c3\u03b1\u03c1\u03bc\u03cc\u03b6\u03b5\u03c4\u03b1\u03b9 \u03c3\u03c4\u03bf \u03c3\u03c7\u03ae\u03bc\u03b1 \u03c4\u03c9\u03bd \u03b1\u03bd\u03c4\u03b9\u03ba\u03b5\u03b9\u03bc\u03ad\u03bd\u03c9\u03bd \u03c0\u03bf\u03c5 \u03c4\u03c5\u03bb\u03af\u03b3\u03bf\u03bd\u03c4\u03b1\u03b9.<\/li>\n\n\n\n
    • \u039c\u03ad\u03c4\u03c1\u03bf \u03b5\u03bb\u03b1\u03c3\u03c4\u03b9\u03ba\u03cc\u03c4\u03b7\u03c4\u03b1\u03c2:<\/strong> \u0391\u03c5\u03c4\u03cc \u03bc\u03b5\u03c4\u03c1\u03ac \u03c4\u03b7 \u03b4\u03c5\u03c3\u03ba\u03b1\u03bc\u03c8\u03af\u03b1 \u03c4\u03b7\u03c2 \u03bc\u03b5\u03bc\u03b2\u03c1\u03ac\u03bd\u03b7\u03c2. \u0388\u03bd\u03b1 \u03c5\u03c8\u03b7\u03bb\u03cc\u03c4\u03b5\u03c1\u03bf \u03bc\u03ad\u03c4\u03c1\u03bf \u03b5\u03bb\u03b1\u03c3\u03c4\u03b9\u03ba\u03cc\u03c4\u03b7\u03c4\u03b1\u03c2 \u03c5\u03c0\u03bf\u03b4\u03b7\u03bb\u03ce\u03bd\u03b5\u03b9 \u03ad\u03bd\u03b1 \u03c0\u03b9\u03bf \u03ac\u03ba\u03b1\u03bc\u03c0\u03c4\u03bf \u03c5\u03bb\u03b9\u03ba\u03cc, \u03b5\u03bd\u03ce \u03ad\u03bd\u03b1 \u03c7\u03b1\u03bc\u03b7\u03bb\u03cc\u03c4\u03b5\u03c1\u03bf \u03bc\u03ad\u03c4\u03c1\u03bf \u03b5\u03bb\u03b1\u03c3\u03c4\u03b9\u03ba\u03cc\u03c4\u03b7\u03c4\u03b1\u03c2 \u03c5\u03c0\u03bf\u03b4\u03b7\u03bb\u03ce\u03bd\u03b5\u03b9 \u03bc\u03b5\u03b3\u03b1\u03bb\u03cd\u03c4\u03b5\u03c1\u03b7 \u03b5\u03c5\u03ba\u03b1\u03bc\u03c8\u03af\u03b1.<\/li>\n\n\n\n
    • \u03a3\u03c5\u03bd\u03b8\u03ae\u03ba\u03b5\u03c2 \u03b4\u03bf\u03ba\u03b9\u03bc\u03ae\u03c2:<\/strong> \u03a4\u03bf ASTM D882 \u03c0\u03b1\u03c1\u03ad\u03c7\u03b5\u03b9 \u03b1\u03ba\u03c1\u03b9\u03b2\u03b5\u03af\u03c2 \u03bf\u03b4\u03b7\u03b3\u03af\u03b5\u03c2 \u03b3\u03b9\u03b1 \u03c4\u03bf\u03bd \u03c4\u03c1\u03cc\u03c0\u03bf \u03c0\u03c1\u03bf\u03b5\u03c4\u03bf\u03b9\u03bc\u03b1\u03c3\u03af\u03b1\u03c2 \u03c4\u03bf\u03c5 \u03b4\u03b5\u03af\u03b3\u03bc\u03b1\u03c4\u03bf\u03c2, \u03c4\u03b9\u03c2 \u03c3\u03c5\u03bd\u03b8\u03ae\u03ba\u03b5\u03c2 \u03c5\u03c0\u03cc \u03c4\u03b9\u03c2 \u03bf\u03c0\u03bf\u03af\u03b5\u03c2 \u03c0\u03c1\u03ad\u03c0\u03b5\u03b9 \u03bd\u03b1 \u03b4\u03b9\u03b5\u03be\u03ac\u03b3\u03b5\u03c4\u03b1\u03b9 \u03b7 \u03b4\u03bf\u03ba\u03b9\u03bc\u03ae \u03ba\u03b1\u03b9 \u03c4\u03bf\u03bd \u03b1\u03c0\u03b1\u03b9\u03c4\u03bf\u03cd\u03bc\u03b5\u03bd\u03bf \u03b5\u03be\u03bf\u03c0\u03bb\u03b9\u03c3\u03bc\u03cc. \u0391\u03ba\u03bf\u03bb\u03bf\u03c5\u03b8\u03ce\u03bd\u03c4\u03b1\u03c2 \u03b1\u03c5\u03c4\u03ac \u03c4\u03b1 \u03c0\u03c1\u03cc\u03c4\u03c5\u03c0\u03b1, \u03bf\u03b9 \u03ba\u03b1\u03c4\u03b1\u03c3\u03ba\u03b5\u03c5\u03b1\u03c3\u03c4\u03ad\u03c2 \u03bc\u03c0\u03bf\u03c1\u03bf\u03cd\u03bd \u03bd\u03b1 \u03b4\u03b9\u03b1\u03c3\u03c6\u03b1\u03bb\u03af\u03c3\u03bf\u03c5\u03bd \u03ad\u03b3\u03c7\u03c1\u03c9\u03bc\u03b7 \u03c4\u03b1\u03b9\u03bd\u03af\u03b1 \u03c4\u03b5\u03bd\u03c4\u03ce\u03bc\u03b1\u03c4\u03bf\u03c2<\/strong> \u03b1\u03c0\u03bf\u03b4\u03af\u03b4\u03b5\u03b9 \u03bc\u03b5 \u03c3\u03c5\u03bd\u03ad\u03c0\u03b5\u03b9\u03b1 \u03ba\u03b1\u03b9 \u03b1\u03be\u03b9\u03bf\u03c0\u03b9\u03c3\u03c4\u03af\u03b1.<\/li>\n<\/ul>\n\n\n\n

      \u03a0\u03ce\u03c2 \u03b7 \u03b4\u03bf\u03ba\u03b9\u03bc\u03ae \u03b5\u03c0\u03b9\u03bc\u03ae\u03ba\u03c5\u03bd\u03c3\u03b7\u03c2 \u03b2\u03bf\u03b7\u03b8\u03ac \u03c3\u03c4\u03b7\u03bd \u03b1\u03be\u03b9\u03bf\u03bb\u03cc\u03b3\u03b7\u03c3\u03b7 \u03c4\u03b1\u03b9\u03bd\u03b9\u03ce\u03bd \u03c4\u03ac\u03bd\u03c5\u03c3\u03b7\u03c2<\/h2>\n\n\n\n

      \u039f \u03b4\u03bf\u03ba\u03b9\u03bc\u03ae \u03b5\u03c0\u03b9\u03bc\u03ae\u03ba\u03c5\u03bd\u03c3\u03b7\u03c2<\/strong> \u03b5\u03af\u03bd\u03b1\u03b9 \u03ad\u03bd\u03b1 \u03ba\u03c1\u03af\u03c3\u03b9\u03bc\u03bf \u03bc\u03ad\u03c1\u03bf\u03c2 \u03c4\u03bf\u03c5 \u03ad\u03b3\u03c7\u03c1\u03c9\u03bc\u03b7 \u03b4\u03bf\u03ba\u03b9\u03bc\u03ae \u03c4\u03b1\u03b9\u03bd\u03af\u03b1\u03c2 \u03c4\u03b5\u03bd\u03c4\u03ce\u03bc\u03b1\u03c4\u03bf\u03c2<\/strong>, \u03ba\u03b1\u03b8\u03ce\u03c2 \u03bc\u03b5\u03c4\u03c1\u03ac\u03b5\u03b9 \u03c0\u03cc\u03c3\u03bf \u03bc\u03c0\u03bf\u03c1\u03b5\u03af \u03bd\u03b1 \u03c4\u03b5\u03bd\u03c4\u03c9\u03b8\u03b5\u03af \u03bc\u03b9\u03b1 \u03bc\u03b5\u03bc\u03b2\u03c1\u03ac\u03bd\u03b7 \u03c0\u03c1\u03b9\u03bd \u03c3\u03c0\u03ac\u03c3\u03b5\u03b9. \u0391\u03c5\u03c4\u03ae \u03b7 \u03b9\u03b4\u03b9\u03cc\u03c4\u03b7\u03c4\u03b1 \u03b5\u03af\u03bd\u03b1\u03b9 \u03b9\u03b4\u03b9\u03b1\u03af\u03c4\u03b5\u03c1\u03b1 \u03c3\u03b7\u03bc\u03b1\u03bd\u03c4\u03b9\u03ba\u03ae \u03c3\u03c4\u03b7 \u03b2\u03b9\u03bf\u03bc\u03b7\u03c7\u03b1\u03bd\u03af\u03b1 \u03c3\u03c5\u03c3\u03ba\u03b5\u03c5\u03b1\u03c3\u03af\u03b1\u03c2, \u03cc\u03c0\u03bf\u03c5 \u03c4\u03bf stretch \u03c6\u03b9\u03bb\u03bc \u03c0\u03c1\u03ad\u03c0\u03b5\u03b9 \u03bd\u03b1 \u03c0\u03c1\u03bf\u03c3\u03b1\u03c1\u03bc\u03cc\u03b6\u03b5\u03c4\u03b1\u03b9 \u03c3\u03c4\u03b5\u03bd\u03ac \u03c3\u03c4\u03bf \u03c3\u03c7\u03ae\u03bc\u03b1 \u03c4\u03bf\u03c5 \u03c0\u03c1\u03bf\u03ca\u03cc\u03bd\u03c4\u03bf\u03c2 \u03c7\u03c9\u03c1\u03af\u03c2 \u03bd\u03b1 \u03c3\u03c0\u03ac\u03b5\u03b9 \u03ae \u03bd\u03b1 \u03c3\u03ba\u03af\u03b6\u03b5\u03c4\u03b1\u03b9.<\/p>\n\n\n\n

      \u03a3\u03b7\u03bc\u03b1\u03c3\u03af\u03b1 \u03c4\u03b7\u03c2 \u03b5\u03c0\u03b9\u03bc\u03ae\u03ba\u03c5\u03bd\u03c3\u03b7\u03c2 \u03c3\u03c4\u03b9\u03c2 \u03c4\u03b1\u03b9\u03bd\u03af\u03b5\u03c2 \u03c4\u03ac\u03bd\u03c5\u03c3\u03b7\u03c2:<\/h2>\n\n\n\n
        \n
      • \u0395\u03c5\u03b5\u03bb\u03b9\u03be\u03af\u03b1:<\/strong> \u0397 \u03b9\u03ba\u03b1\u03bd\u03cc\u03c4\u03b7\u03c4\u03b1 \u03b5\u03c0\u03b9\u03bc\u03ae\u03ba\u03c5\u03bd\u03c3\u03b7\u03c2 \u03c7\u03c9\u03c1\u03af\u03c2 \u03bd\u03b1 \u03c3\u03c0\u03ac\u03b5\u03b9 \u03b5\u03af\u03bd\u03b1\u03b9 \u03ad\u03bd\u03b1 \u03b2\u03b1\u03c3\u03b9\u03ba\u03cc \u03c7\u03b1\u03c1\u03b1\u03ba\u03c4\u03b7\u03c1\u03b9\u03c3\u03c4\u03b9\u03ba\u03cc \u03c4\u03c9\u03bd \u03c4\u03b1\u03b9\u03bd\u03b9\u03ce\u03bd stretch \u03c5\u03c8\u03b7\u03bb\u03ae\u03c2 \u03c0\u03bf\u03b9\u03cc\u03c4\u03b7\u03c4\u03b1\u03c2. \u039c\u03b9\u03b1 \u03bc\u03b5\u03bc\u03b2\u03c1\u03ac\u03bd\u03b7 \u03bc\u03b5 \u03ba\u03b1\u03bb\u03ad\u03c2 \u03b9\u03b4\u03b9\u03cc\u03c4\u03b7\u03c4\u03b5\u03c2 \u03b5\u03c0\u03b9\u03bc\u03ae\u03ba\u03c5\u03bd\u03c3\u03b7\u03c2 \u03bc\u03c0\u03bf\u03c1\u03b5\u03af \u03bd\u03b1 \u03c4\u03b5\u03bd\u03c4\u03c9\u03b8\u03b5\u03af \u03b3\u03b9\u03b1 \u03bd\u03b1 \u03c7\u03c9\u03c1\u03ad\u03c3\u03b5\u03b9 \u03b3\u03cd\u03c1\u03c9 \u03b1\u03c0\u03cc \u03b1\u03bd\u03c4\u03b9\u03ba\u03b5\u03af\u03bc\u03b5\u03bd\u03b1 \u03b1\u03ba\u03b1\u03bd\u03cc\u03bd\u03b9\u03c3\u03c4\u03bf\u03c5 \u03c3\u03c7\u03ae\u03bc\u03b1\u03c4\u03bf\u03c2 \u03c7\u03c9\u03c1\u03af\u03c2 \u03bd\u03b1 \u03c3\u03ba\u03b9\u03c3\u03c4\u03b5\u03af.<\/li>\n\n\n\n
      • \u0391\u03bd\u03b8\u03b5\u03ba\u03c4\u03b9\u03ba\u03cc\u03c4\u03b7\u03c4\u03b1:<\/strong> \u039c\u03b9\u03b1 \u03bc\u03b5\u03bc\u03b2\u03c1\u03ac\u03bd\u03b7 \u03c0\u03bf\u03c5 \u03bc\u03c0\u03bf\u03c1\u03b5\u03af \u03bd\u03b1 \u03b5\u03c0\u03b9\u03bc\u03b7\u03ba\u03c5\u03bd\u03b8\u03b5\u03af \u03c3\u03b7\u03bc\u03b1\u03bd\u03c4\u03b9\u03ba\u03ac \u03b8\u03b1 \u03b5\u03c0\u03b1\u03bd\u03ad\u03bb\u03b8\u03b5\u03b9 \u03c3\u03c4\u03bf \u03b1\u03c1\u03c7\u03b9\u03ba\u03cc \u03c4\u03b7\u03c2 \u03c3\u03c7\u03ae\u03bc\u03b1 \u03bc\u03cc\u03bb\u03b9\u03c2 \u03b1\u03c6\u03b1\u03b9\u03c1\u03b5\u03b8\u03b5\u03af \u03b7 \u03b4\u03cd\u03bd\u03b1\u03bc\u03b7 \u03c4\u03ac\u03bd\u03c5\u03c3\u03b7\u03c2, \u03b3\u03b5\u03b3\u03bf\u03bd\u03cc\u03c2 \u03c0\u03bf\u03c5 \u03c4\u03b7\u03bd \u03ba\u03b1\u03b8\u03b9\u03c3\u03c4\u03ac \u03b9\u03b4\u03b9\u03b1\u03af\u03c4\u03b5\u03c1\u03b1 \u03ba\u03b1\u03c4\u03ac\u03bb\u03bb\u03b7\u03bb\u03b7 \u03b3\u03b9\u03b1 \u03c4\u03b7\u03bd \u03b1\u03c3\u03c6\u03b1\u03bb\u03ae \u03c0\u03b5\u03c1\u03b9\u03c4\u03cd\u03bb\u03b9\u03be\u03b7 \u03b5\u03bc\u03c0\u03bf\u03c1\u03b5\u03c5\u03bc\u03ac\u03c4\u03c9\u03bd.<\/li>\n<\/ul>\n\n\n\n

        \u039c\u03b5 \u03c4\u03b7 \u03b4\u03b9\u03b5\u03bd\u03ad\u03c1\u03b3\u03b5\u03b9\u03b1 \u03b4\u03bf\u03ba\u03b9\u03bc\u03ad\u03c2 \u03b5\u03c0\u03b9\u03bc\u03ae\u03ba\u03c5\u03bd\u03c3\u03b7\u03c2<\/strong> \u03c3\u03c4\u03bf \u03c0\u03bb\u03b1\u03af\u03c3\u03b9\u03bf \u03c4\u03bf\u03c5 \u0394\u03bf\u03ba\u03b9\u03bc\u03ae \u03ad\u03b3\u03c7\u03c1\u03c9\u03bc\u03b7\u03c2 \u03c4\u03b1\u03b9\u03bd\u03af\u03b1\u03c2 \u03c4\u03b5\u03bd\u03c4\u03ce\u03bc\u03b1\u03c4\u03bf\u03c2<\/strong>, \u03bf\u03b9 \u03ba\u03b1\u03c4\u03b1\u03c3\u03ba\u03b5\u03c5\u03b1\u03c3\u03c4\u03ad\u03c2 \u03bc\u03c0\u03bf\u03c1\u03bf\u03cd\u03bd \u03bd\u03b1 \u03b4\u03b9\u03b1\u03c3\u03c6\u03b1\u03bb\u03af\u03c3\u03bf\u03c5\u03bd \u03cc\u03c4\u03b9 \u03bf\u03b9 \u03bc\u03b5\u03bc\u03b2\u03c1\u03ac\u03bd\u03b5\u03c2 \u03c4\u03bf\u03c5\u03c2 \u03b5\u03af\u03bd\u03b1\u03b9 \u03b9\u03ba\u03b1\u03bd\u03ad\u03c2 \u03bd\u03b1 \u03c0\u03b1\u03c1\u03ad\u03c7\u03bf\u03c5\u03bd \u03c4\u03b7\u03bd \u03b1\u03bd\u03c4\u03bf\u03c7\u03ae \u03ba\u03b1\u03b9 \u03c4\u03b7\u03bd \u03b5\u03c5\u03b5\u03bb\u03b9\u03be\u03af\u03b1 \u03c0\u03bf\u03c5 \u03b1\u03c0\u03b1\u03b9\u03c4\u03bf\u03cd\u03bd\u03c4\u03b1\u03b9 \u03b3\u03b9\u03b1 \u03b4\u03b9\u03ac\u03c6\u03bf\u03c1\u03b5\u03c2 \u03b5\u03c6\u03b1\u03c1\u03bc\u03bf\u03b3\u03ad\u03c2 \u03c3\u03c5\u03c3\u03ba\u03b5\u03c5\u03b1\u03c3\u03af\u03b1\u03c2.<\/p>\n\n\n\n

        \u039f \u03c1\u03cc\u03bb\u03bf\u03c2 \u03c4\u03b7\u03c2 \u03b1\u03bd\u03c4\u03bf\u03c7\u03ae\u03c2 \u03c3\u03b5 \u03b5\u03c6\u03b5\u03bb\u03ba\u03c5\u03c3\u03bc\u03cc \u03c4\u03b7\u03c2 \u03bc\u03b5\u03bc\u03b2\u03c1\u03ac\u03bd\u03b7\u03c2 \u03c3\u03c4\u03b7 \u03c3\u03c5\u03c3\u03ba\u03b5\u03c5\u03b1\u03c3\u03af\u03b1<\/h2>\n\n\n\n

        \u0391\u03bd\u03c4\u03bf\u03c7\u03ae \u03c3\u03b5 \u03b5\u03c6\u03b5\u03bb\u03ba\u03c5\u03c3\u03bc\u03cc \u03c6\u03b9\u03bb\u03bc<\/strong> \u03b5\u03af\u03bd\u03b1\u03b9 \u03ad\u03bd\u03b1 \u03bf\u03c5\u03c3\u03b9\u03b1\u03c3\u03c4\u03b9\u03ba\u03cc \u03bc\u03ad\u03c4\u03c1\u03bf \u03c4\u03b7\u03c2 \u03b1\u03bd\u03b8\u03b5\u03ba\u03c4\u03b9\u03ba\u03cc\u03c4\u03b7\u03c4\u03b1\u03c2 \u03ba\u03b1\u03b9 \u03c4\u03b7\u03c2 \u03b1\u03c0\u03cc\u03b4\u03bf\u03c3\u03b7\u03c2 \u03c4\u03c9\u03bd \u03c4\u03b1\u03b9\u03bd\u03b9\u03ce\u03bd stretch. \u0388\u03b3\u03c7\u03c1\u03c9\u03bc\u03b5\u03c2 \u03c4\u03b1\u03b9\u03bd\u03af\u03b5\u03c2 \u03c4\u03b5\u03bd\u03c4\u03ce\u03bc\u03b1\u03c4\u03bf\u03c2<\/strong> \u03c7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03b9\u03bf\u03cd\u03bd\u03c4\u03b1\u03b9 \u03c3\u03c5\u03bd\u03ae\u03b8\u03c9\u03c2 \u03c3\u03b5 \u03b5\u03c6\u03b1\u03c1\u03bc\u03bf\u03b3\u03ad\u03c2 \u03c3\u03c5\u03c3\u03ba\u03b5\u03c5\u03b1\u03c3\u03af\u03b1\u03c2 \u03cc\u03c0\u03bf\u03c5 \u03b1\u03c0\u03b1\u03b9\u03c4\u03b5\u03af\u03c4\u03b1\u03b9 \u03bf\u03c1\u03b1\u03c4\u03cc\u03c4\u03b7\u03c4\u03b1 \u03ba\u03b1\u03b9 \u03b1\u03bd\u03c4\u03bf\u03c7\u03ae. \u039c\u03b9\u03b1 \u03bc\u03b5\u03bc\u03b2\u03c1\u03ac\u03bd\u03b7 \u03bc\u03b5 \u03c5\u03c8\u03b7\u03bb\u03ae \u03b1\u03bd\u03c4\u03bf\u03c7\u03ae \u03c3\u03b5 \u03b5\u03c6\u03b5\u03bb\u03ba\u03c5\u03c3\u03bc\u03cc \u03b5\u03be\u03b1\u03c3\u03c6\u03b1\u03bb\u03af\u03b6\u03b5\u03b9 \u03cc\u03c4\u03b9 \u03bc\u03c0\u03bf\u03c1\u03b5\u03af \u03bd\u03b1 \u03b1\u03bd\u03c4\u03ad\u03be\u03b5\u03b9 \u03c4\u03b9\u03c2 \u03ba\u03b1\u03c4\u03b1\u03c0\u03bf\u03bd\u03ae\u03c3\u03b5\u03b9\u03c2 \u03c4\u03b7\u03c2 \u03c0\u03b5\u03c1\u03b9\u03c4\u03cd\u03bb\u03b9\u03be\u03b7\u03c2, \u03c3\u03c5\u03bc\u03c0\u03b5\u03c1\u03b9\u03bb\u03b1\u03bc\u03b2\u03b1\u03bd\u03bf\u03bc\u03ad\u03bd\u03c9\u03bd \u03b5\u03ba\u03b5\u03af\u03bd\u03c9\u03bd \u03c0\u03bf\u03c5 \u03b5\u03bc\u03c6\u03b1\u03bd\u03af\u03b6\u03bf\u03bd\u03c4\u03b1\u03b9 \u03ba\u03b1\u03c4\u03ac \u03c4\u03b7 \u03bc\u03b5\u03c4\u03b1\u03c6\u03bf\u03c1\u03ac \u03ba\u03b1\u03b9 \u03c4\u03b7\u03bd \u03b1\u03c0\u03bf\u03b8\u03ae\u03ba\u03b5\u03c5\u03c3\u03b7.<\/p>\n\n\n\n

        \u0392\u03b1\u03c3\u03b9\u03ba\u03ac \u03bf\u03c6\u03ad\u03bb\u03b7 \u03c4\u03b7\u03c2 \u03c5\u03c8\u03b7\u03bb\u03ae\u03c2 \u03b1\u03bd\u03c4\u03bf\u03c7\u03ae\u03c2 \u03c3\u03b5 \u03b5\u03c6\u03b5\u03bb\u03ba\u03c5\u03c3\u03bc\u03cc \u03c3\u03b5 \u03c4\u03b1\u03b9\u03bd\u03af\u03b5\u03c2 stretch:<\/h2>\n\n\n\n
          \n
        • \u03a0\u03c1\u03bf\u03c3\u03c4\u03b1\u03c3\u03af\u03b1 \u03ba\u03b1\u03c4\u03ac \u03c4\u03b7 \u03bc\u03b5\u03c4\u03b1\u03c6\u03bf\u03c1\u03ac:<\/strong> \u039c\u03b9\u03b1 \u03c4\u03b1\u03b9\u03bd\u03af\u03b1 \u03bc\u03b5 \u03b5\u03c0\u03b1\u03c1\u03ba\u03ae \u03b1\u03bd\u03c4\u03bf\u03c7\u03ae \u03c3\u03b5 \u03b5\u03c6\u03b5\u03bb\u03ba\u03c5\u03c3\u03bc\u03cc<\/strong> \u03bc\u03c0\u03bf\u03c1\u03bf\u03cd\u03bd \u03bd\u03b1 \u03b1\u03c0\u03bf\u03c4\u03c1\u03ad\u03c8\u03bf\u03c5\u03bd \u03c4\u03b7 \u03bc\u03b5\u03c4\u03b1\u03c4\u03cc\u03c0\u03b9\u03c3\u03b7 \u03c4\u03c9\u03bd \u03c0\u03c1\u03bf\u03ca\u03cc\u03bd\u03c4\u03c9\u03bd \u03ba\u03b1\u03c4\u03ac \u03c4\u03b7 \u03bc\u03b5\u03c4\u03b1\u03c6\u03bf\u03c1\u03ac, \u03c0\u03c1\u03bf\u03c3\u03c4\u03b1\u03c4\u03b5\u03cd\u03bf\u03bd\u03c4\u03ac\u03c2 \u03c4\u03b1 \u03b1\u03c0\u03cc \u03b6\u03b7\u03bc\u03b9\u03ad\u03c2.<\/li>\n\n\n\n
        • \u0399\u03ba\u03b1\u03bd\u03cc\u03c4\u03b7\u03c4\u03b1 \u03c3\u03c5\u03b3\u03ba\u03c1\u03ac\u03c4\u03b7\u03c3\u03b7\u03c2 \u03c6\u03bf\u03c1\u03c4\u03af\u03bf\u03c5:<\/strong> \u039f\u03b9 \u03b9\u03c3\u03c7\u03c5\u03c1\u03ad\u03c2 \u03c4\u03b1\u03b9\u03bd\u03af\u03b5\u03c2 stretch \u03bc\u03c0\u03bf\u03c1\u03bf\u03cd\u03bd \u03bd\u03b1 \u03c3\u03c5\u03b3\u03ba\u03c1\u03b1\u03c4\u03ae\u03c3\u03bf\u03c5\u03bd \u03bc\u03b5 \u03b1\u03c3\u03c6\u03ac\u03bb\u03b5\u03b9\u03b1 \u03b2\u03b1\u03c1\u03cd\u03c4\u03b5\u03c1\u03b1 \u03c6\u03bf\u03c1\u03c4\u03af\u03b1, \u03bc\u03b5\u03b9\u03ce\u03bd\u03bf\u03bd\u03c4\u03b1\u03c2 \u03c4\u03bf\u03bd \u03ba\u03af\u03bd\u03b4\u03c5\u03bd\u03bf \u03ba\u03b1\u03c4\u03b1\u03c3\u03c4\u03c1\u03bf\u03c6\u03ae\u03c2 \u03c4\u03bf\u03c5 \u03c0\u03c1\u03bf\u03ca\u03cc\u03bd\u03c4\u03bf\u03c2.<\/li>\n\n\n\n
        • \u0391\u03bd\u03c4\u03bf\u03c7\u03ae:<\/strong> \u0397 \u03c5\u03c8\u03b7\u03bb\u03ae \u03b1\u03bd\u03c4\u03bf\u03c7\u03ae \u03c3\u03b5 \u03b5\u03c6\u03b5\u03bb\u03ba\u03c5\u03c3\u03bc\u03cc \u03b5\u03be\u03b1\u03c3\u03c6\u03b1\u03bb\u03af\u03b6\u03b5\u03b9 \u03cc\u03c4\u03b9 \u03c4\u03bf \u03b5\u03bb\u03b1\u03c3\u03c4\u03b9\u03ba\u03cc \u03c6\u03b9\u03bb\u03bc<\/strong> \u03b4\u03b9\u03b1\u03c4\u03b7\u03c1\u03b5\u03af \u03c4\u03b7\u03bd \u03b1\u03ba\u03b5\u03c1\u03b1\u03b9\u03cc\u03c4\u03b7\u03c4\u03ac \u03c4\u03b7\u03c2 \u03c3\u03b5 \u03cc\u03bb\u03b7 \u03c4\u03b7 \u03b4\u03b9\u03ac\u03c1\u03ba\u03b5\u03b9\u03b1 \u03c4\u03b7\u03c2 \u03b4\u03b9\u03b1\u03b4\u03b9\u03ba\u03b1\u03c3\u03af\u03b1\u03c2 \u03c4\u03b7\u03c2 \u03b5\u03c6\u03bf\u03b4\u03b9\u03b1\u03c3\u03c4\u03b9\u03ba\u03ae\u03c2 \u03b1\u03bb\u03c5\u03c3\u03af\u03b4\u03b1\u03c2.<\/li>\n<\/ul>\n\n\n\n

          \u03a3\u03c5\u03bc\u03c0\u03ad\u03c1\u03b1\u03c3\u03bc\u03b1: \u0393\u03b9\u03b1\u03c4\u03af \u03b7 \u03b4\u03bf\u03ba\u03b9\u03bc\u03ae \u03ad\u03b3\u03c7\u03c1\u03c9\u03bc\u03b7\u03c2 \u03c4\u03b1\u03b9\u03bd\u03af\u03b1\u03c2 \u03c4\u03b5\u03bd\u03c4\u03ce\u03bc\u03b1\u03c4\u03bf\u03c2 \u03b5\u03af\u03bd\u03b1\u03b9 \u03ba\u03c1\u03af\u03c3\u03b9\u03bc\u03b7<\/h2>\n\n\n\n

          \u039f \u0394\u03bf\u03ba\u03b9\u03bc\u03ae \u03ad\u03b3\u03c7\u03c1\u03c9\u03bc\u03b7\u03c2 \u03c4\u03b1\u03b9\u03bd\u03af\u03b1\u03c2 \u03c4\u03b5\u03bd\u03c4\u03ce\u03bc\u03b1\u03c4\u03bf\u03c2<\/strong> \u03c0\u03b1\u03af\u03b6\u03b5\u03b9 \u03ba\u03b1\u03b8\u03bf\u03c1\u03b9\u03c3\u03c4\u03b9\u03ba\u03cc \u03c1\u03cc\u03bb\u03bf \u03c3\u03c4\u03b7 \u03b4\u03b9\u03b1\u03c3\u03c6\u03ac\u03bb\u03b9\u03c3\u03b7 \u03c4\u03b7\u03c2 \u03b1\u03be\u03b9\u03bf\u03c0\u03b9\u03c3\u03c4\u03af\u03b1\u03c2 \u03ba\u03b1\u03b9 \u03c4\u03b7\u03c2 \u03b1\u03c0\u03cc\u03b4\u03bf\u03c3\u03b7\u03c2 \u03c4\u03c9\u03bd \u03c4\u03b1\u03b9\u03bd\u03b9\u03ce\u03bd stretch \u03c0\u03bf\u03c5 \u03c7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03b9\u03bf\u03cd\u03bd\u03c4\u03b1\u03b9 \u03c3\u03c4\u03b7 \u03c3\u03c5\u03c3\u03ba\u03b5\u03c5\u03b1\u03c3\u03af\u03b1. \u039c\u03b5 \u03b4\u03bf\u03ba\u03b9\u03bc\u03ad\u03c2 \u03b3\u03b9\u03b1 \u03b9\u03b4\u03b9\u03cc\u03c4\u03b7\u03c4\u03b5\u03c2 \u03cc\u03c0\u03c9\u03c2 \u03b1\u03bd\u03c4\u03bf\u03c7\u03ae \u03c3\u03b5 \u03b5\u03c6\u03b5\u03bb\u03ba\u03c5\u03c3\u03bc\u03cc<\/strong>, \u03b5\u03c0\u03b9\u03bc\u03ae\u03ba\u03c5\u03bd\u03c3\u03b7<\/strong>, \u03ba\u03b1\u03b9 \u03bc\u03ad\u03c4\u03c1\u03bf \u03b5\u03bb\u03b1\u03c3\u03c4\u03b9\u03ba\u03cc\u03c4\u03b7\u03c4\u03b1\u03c2 \u03c6\u03b9\u03bb\u03bc<\/strong>, \u03bf\u03b9 \u03ba\u03b1\u03c4\u03b1\u03c3\u03ba\u03b5\u03c5\u03b1\u03c3\u03c4\u03ad\u03c2 \u03bc\u03c0\u03bf\u03c1\u03bf\u03cd\u03bd \u03bd\u03b1 \u03b4\u03b9\u03b1\u03c3\u03c6\u03b1\u03bb\u03af\u03c3\u03bf\u03c5\u03bd \u03cc\u03c4\u03b9 \u03bf\u03b9 \u03ad\u03b3\u03c7\u03c1\u03c9\u03bc\u03b5\u03c2 \u03c4\u03b1\u03b9\u03bd\u03af\u03b5\u03c2 \u03c4\u03ad\u03bd\u03c4\u03c9\u03c3\u03b7\u03c2<\/strong> \u03b5\u03af\u03bd\u03b1\u03b9 \u03b1\u03c1\u03ba\u03b5\u03c4\u03ac \u03b9\u03c3\u03c7\u03c5\u03c1\u03ac, \u03b5\u03cd\u03ba\u03b1\u03bc\u03c0\u03c4\u03b1 \u03ba\u03b1\u03b9 \u03b1\u03bd\u03b8\u03b5\u03ba\u03c4\u03b9\u03ba\u03ac \u03ce\u03c3\u03c4\u03b5 \u03bd\u03b1 \u03b1\u03bd\u03c4\u03b1\u03c0\u03bf\u03ba\u03c1\u03af\u03bd\u03bf\u03bd\u03c4\u03b1\u03b9 \u03c3\u03c4\u03b9\u03c2 \u03b1\u03c0\u03b1\u03b9\u03c4\u03ae\u03c3\u03b5\u03b9\u03c2 \u03c4\u03b7\u03c2 \u03c3\u03cd\u03b3\u03c7\u03c1\u03bf\u03bd\u03b7\u03c2 \u03c3\u03c5\u03c3\u03ba\u03b5\u03c5\u03b1\u03c3\u03af\u03b1\u03c2.<\/p>\n\n\n\n

          \u03a3\u03c4\u03bf \u039a\u03c5\u03c4\u03c4\u03b1\u03c1\u03b9\u03ba\u03ac \u03cc\u03c1\u03b3\u03b1\u03bd\u03b1<\/strong>, \u03c0\u03c1\u03bf\u03c3\u03c6\u03ad\u03c1\u03bf\u03c5\u03bc\u03b5 \u03c0\u03c1\u03bf\u03b7\u03b3\u03bc\u03ad\u03bd\u03b5\u03c2 \u03b4\u03bf\u03ba\u03b9\u03bc\u03ae \u03b5\u03c6\u03b5\u03bb\u03ba\u03c5\u03c3\u03bc\u03bf\u03cd<\/strong> \u0395\u03be\u03bf\u03c0\u03bb\u03b9\u03c3\u03bc\u03cc\u03c2 \u03c3\u03c7\u03b5\u03b4\u03b9\u03b1\u03c3\u03bc\u03ad\u03bd\u03bf\u03c2 \u03bd\u03b1 \u03c0\u03b1\u03c1\u03ad\u03c7\u03b5\u03b9 \u03b1\u03ba\u03c1\u03b9\u03b2\u03b5\u03af\u03c2 \u03ba\u03b1\u03b9 \u03b1\u03ba\u03c1\u03b9\u03b2\u03b5\u03af\u03c2 \u03bc\u03b5\u03c4\u03c1\u03ae\u03c3\u03b5\u03b9\u03c2 \u03b3\u03b9\u03b1 \u03ad\u03b3\u03c7\u03c1\u03c9\u03bc\u03b5\u03c2 \u03c4\u03b1\u03b9\u03bd\u03af\u03b5\u03c2 \u03c4\u03ad\u03bd\u03c4\u03c9\u03c3\u03b7\u03c2<\/strong> \u03ba\u03b1\u03b9 \u03ac\u03bb\u03bb\u03b1 \u03c0\u03bb\u03b1\u03c3\u03c4\u03b9\u03ba\u03ac \u03c5\u03bb\u03b9\u03ba\u03ac. \u03a4\u03bf \u03bc\u03b1\u03c2 \u03b4\u03bf\u03ba\u03b9\u03bc\u03b1\u03c3\u03c4\u03ad\u03c2 \u03b5\u03c6\u03b5\u03bb\u03ba\u03c5\u03c3\u03bc\u03bf\u03cd<\/strong> \u03b5\u03af\u03bd\u03b1\u03b9 \u03c3\u03b5 \u03b8\u03ad\u03c3\u03b7 \u03bd\u03b1 \u03b5\u03ba\u03c4\u03b5\u03bb\u03bf\u03cd\u03bd \u03b4\u03bf\u03ba\u03b9\u03bc\u03ad\u03c2 \u03c3\u03cd\u03bc\u03c6\u03c9\u03bd\u03b1 \u03bc\u03b5 ASTM D882<\/strong>, \u03b4\u03b9\u03b1\u03c3\u03c6\u03b1\u03bb\u03af\u03b6\u03bf\u03bd\u03c4\u03b1\u03c2 \u03cc\u03c4\u03b9 \u03c4\u03b1 \u03c0\u03c1\u03bf\u03ca\u03cc\u03bd\u03c4\u03b1 \u03c3\u03b1\u03c2 \u03c0\u03bb\u03b7\u03c1\u03bf\u03cd\u03bd \u03c4\u03b1 \u03c0\u03c1\u03cc\u03c4\u03c5\u03c0\u03b1 \u03c4\u03bf\u03c5 \u03ba\u03bb\u03ac\u03b4\u03bf\u03c5.<\/p>\n\n\n\n

          \u0395\u03ac\u03bd \u03b1\u03bd\u03b1\u03b6\u03b7\u03c4\u03ac\u03c4\u03b5 \u03b1\u03be\u03b9\u03cc\u03c0\u03b9\u03c3\u03c4\u03b5\u03c2, \u03c5\u03c8\u03b7\u03bb\u03ae\u03c2 \u03c0\u03bf\u03b9\u03cc\u03c4\u03b7\u03c4\u03b1\u03c2 \u03bb\u03cd\u03c3\u03b5\u03b9\u03c2 \u03b4\u03bf\u03ba\u03b9\u03bc\u03ce\u03bd, \u03c4\u03b1 \u03cc\u03c1\u03b3\u03b1\u03bd\u03ac \u03bc\u03b1\u03c2 \u03bc\u03c0\u03bf\u03c1\u03bf\u03cd\u03bd \u03bd\u03b1 \u03c3\u03b1\u03c2 \u03b2\u03bf\u03b7\u03b8\u03ae\u03c3\u03bf\u03c5\u03bd \u03bd\u03b1 \u03b1\u03be\u03b9\u03bf\u03bb\u03bf\u03b3\u03ae\u03c3\u03b5\u03c4\u03b5 \u03c4\u03b7\u03bd \u03b1\u03bd\u03c4\u03bf\u03c7\u03ae \u03ba\u03b1\u03b9 \u03c4\u03b7\u03bd \u03b5\u03c5\u03b5\u03bb\u03b9\u03be\u03af\u03b1 \u03c4\u03c9\u03bd \u03b5\u03bb\u03b1\u03c3\u03c4\u03b9\u03ba\u03ad\u03c2 \u03bc\u03b5\u03bc\u03b2\u03c1\u03ac\u03bd\u03b5\u03c2<\/strong>, \u03b5\u03be\u03b1\u03c3\u03c6\u03b1\u03bb\u03af\u03b6\u03bf\u03bd\u03c4\u03b1\u03c2 \u03c4\u03b7\u03bd \u03ba\u03b1\u03bb\u03cd\u03c4\u03b5\u03c1\u03b7 \u03b4\u03c5\u03bd\u03b1\u03c4\u03ae \u03b1\u03c0\u03cc\u03b4\u03bf\u03c3\u03b7 \u03b3\u03b9\u03b1 \u03c4\u03b9\u03c2 \u03b1\u03bd\u03ac\u03b3\u03ba\u03b5\u03c2 \u03c3\u03c5\u03c3\u03ba\u03b5\u03c5\u03b1\u03c3\u03af\u03b1\u03c2 \u03c3\u03b1\u03c2. \u0395\u03c0\u03b9\u03ba\u03bf\u03b9\u03bd\u03c9\u03bd\u03af\u03b1 \u039a\u03c5\u03c4\u03c4\u03b1\u03c1\u03b9\u03ba\u03ac \u03cc\u03c1\u03b3\u03b1\u03bd\u03b1<\/strong> \u03c3\u03ae\u03bc\u03b5\u03c1\u03b1 \u03b3\u03b9\u03b1 \u03bd\u03b1 \u03bc\u03ac\u03b8\u03b5\u03c4\u03b5 \u03c0\u03b5\u03c1\u03b9\u03c3\u03c3\u03cc\u03c4\u03b5\u03c1\u03b1 \u03b3\u03b9\u03b1 \u03c4\u03b9\u03c2 \u03bb\u03cd\u03c3\u03b5\u03b9\u03c2 \u03b4\u03bf\u03ba\u03b9\u03bc\u03ce\u03bd \u03bc\u03b1\u03c2.<\/p>","protected":false},"excerpt":{"rendered":"

          \u0395\u03b9\u03c3\u03b1\u03b3\u03c9\u03b3\u03ae \u03c3\u03c4\u03b7 \u03b4\u03bf\u03ba\u03b9\u03bc\u03ae \u03ad\u03b3\u03c7\u03c1\u03c9\u03bc\u03c9\u03bd \u03c4\u03b1\u03b9\u03bd\u03b9\u03ce\u03bd \u03c4\u03b5\u03bd\u03c4\u03ce\u03bc\u03b1\u03c4\u03bf\u03c2 \u0397 \u03b4\u03bf\u03ba\u03b9\u03bc\u03ae \u03ad\u03b3\u03c7\u03c1\u03c9\u03bc\u03c9\u03bd \u03c4\u03b1\u03b9\u03bd\u03b9\u03ce\u03bd \u03c4\u03b5\u03bd\u03c4\u03ce\u03bc\u03b1\u03c4\u03bf\u03c2 \u03b5\u03af\u03bd\u03b1\u03b9 \u03bc\u03b9\u03b1 \u03bf\u03c5\u03c3\u03b9\u03b1\u03c3\u03c4\u03b9\u03ba\u03ae \u03b1\u03be\u03b9\u03bf\u03bb\u03cc\u03b3\u03b7\u03c3\u03b7 \u03b3\u03b9\u03b1 \u03c4\u03b7 \u03b2\u03b9\u03bf\u03bc\u03b7\u03c7\u03b1\u03bd\u03af\u03b1 \u03c3\u03c5\u03c3\u03ba\u03b5\u03c5\u03b1\u03c3\u03af\u03b1\u03c2, \u03b5\u03b9\u03b4\u03b9\u03ba\u03ac \u03b3\u03b9\u03b1 \u03c4\u03b9\u03c2 \u03c4\u03b1\u03b9\u03bd\u03af\u03b5\u03c2 \u03c4\u03b5\u03bd\u03c4\u03ce\u03bc\u03b1\u03c4\u03bf\u03c2 \u03c0\u03bf\u03c5 \u03c7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03b9\u03bf\u03cd\u03bd\u03c4\u03b1\u03b9 \u03b3\u03b9\u03b1 \u03c4\u03b7\u03bd \u03b1\u03c3\u03c6\u03ac\u03bb\u03b9\u03c3\u03b7 \u03ba\u03b1\u03b9 \u03c4\u03b7\u03bd \u03c0\u03b5\u03c1\u03b9\u03c4\u03cd\u03bb\u03b9\u03be\u03b7 \u03c0\u03c1\u03bf\u03ca\u03cc\u03bd\u03c4\u03c9\u03bd \u03b3\u03b9\u03b1 \u03c4\u03b7 \u03bc\u03b5\u03c4\u03b1\u03c6\u03bf\u03c1\u03ac \u03ba\u03b1\u03b9 \u03c4\u03b7\u03bd \u03b1\u03c0\u03bf\u03b8\u03ae\u03ba\u03b5\u03c5\u03c3\u03b7. \u039f\u03b9 \u03c4\u03b1\u03b9\u03bd\u03af\u03b5\u03c2 stretch \u03b4\u03b9\u03b1\u03c4\u03af\u03b8\u03b5\u03bd\u03c4\u03b1\u03b9 \u03c3\u03b5 \u03b4\u03b9\u03ac\u03c6\u03bf\u03c1\u03b1 \u03c7\u03c1\u03ce\u03bc\u03b1\u03c4\u03b1 \u03ba\u03b1\u03b9 \u03c3\u03c5\u03bd\u03b8\u03ad\u03c3\u03b5\u03b9\u03c2 \u03ba\u03b1\u03b9 \u03b7 \u03b1\u03c0\u03cc\u03b4\u03bf\u03c3\u03ae \u03c4\u03bf\u03c5\u03c2 \u03c0\u03c1\u03ad\u03c0\u03b5\u03b9 \u03bd\u03b1 \u03b5\u03bb\u03ad\u03b3\u03c7\u03b5\u03c4\u03b1\u03b9 \u03b3\u03b9\u03b1 \u03bd\u03b1 \u03b4\u03b9\u03b1\u03c3\u03c6\u03b1\u03bb\u03b9\u03c3\u03c4\u03b5\u03af \u03cc\u03c4\u03b9 \u03c0\u03bb\u03b7\u03c1\u03bf\u03cd\u03bd \u03c4\u03b9\u03c2 \u03b1\u03c0\u03b1\u03b9\u03c4\u03bf\u03cd\u03bc\u03b5\u03bd\u03b5\u03c2 \u03b1\u03bd\u03c4\u03bf\u03c7\u03ad\u03c2 [...]","protected":false},"author":4,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-1307","post","type-post","status-publish","format-standard","hentry","category-wrap-film-test"],"yoast_head":"\nColored Stretch Film Test And Plastic Tensile Strength Testing<\/title>\n<meta name=\"description\" content=\"Learn about the Colored Stretch Film Test and its importance in determining plastic tensile strength. 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