{"id":110,"count":4,"description":"<h2>\u03a5\u03bb\u03b9\u03ba\u03cc \u03b1\u03af\u03c4\u03b7\u03c3\u03b7\u03c2<\/h2>\r\n<a href=\"https:\/\/www.astm.org\/d0882-18.html\" target=\"_blank\" rel=\"noopener\">ASTM D882<\/a> applies to thin plastic sheeting, typically less than 1.0 mm (0.04 in.) in thickness. This includes films and flexible plastics used in packaging, medical devices, and various industrial applications.\r\n<h2>\u0394\u03b9\u03b1\u03b4\u03b9\u03ba\u03b1\u03c3\u03af\u03b1 \u03b4\u03bf\u03ba\u03b9\u03bc\u03ae\u03c2<\/h2>\r\n<ol>\r\n \t<li><strong>\u03a0\u03c1\u03bf\u03b5\u03c4\u03bf\u03b9\u03bc\u03b1\u03c3\u03af\u03b1 \u03b4\u03b5\u03af\u03b3\u03bc\u03b1\u03c4\u03bf\u03c2<\/strong>: Cut specimens from the plastic sheeting, ensuring they are free from defects. Typical specimen dimensions are 25.4 mm (1 in.) wide and at least 150 mm (6 in.) long.<\/li>\r\n \t<li><strong>\u03a0\u03c1\u03bf\u03b5\u03c4\u03bf\u03b9\u03bc\u03b1\u03c3\u03af\u03b1<\/strong>: Condition the specimens at a standard temperature and humidity (typically 23\u00b0C and 50% relative humidity) for at least 40 hours prior to testing.<\/li>\r\n \t<li><strong>\u0394\u03bf\u03ba\u03b9\u03bc\u03ad\u03c2<\/strong>: Perform the test using a tensile testing machine. Mount the specimen in the grips, ensuring proper alignment to avoid slippage or uneven stress distribution.<\/li>\r\n \t<li><strong>\u0395\u03ba\u03c4\u03ad\u03bb\u03b5\u03c3\u03b7 \u03b4\u03bf\u03ba\u03b9\u03bc\u03ae\u03c2<\/strong>: Apply the tensile force at a constant rate of grip separation until the specimen breaks. Record the force and elongation.<\/li>\r\n<\/ol>\r\n[embed]https:\/\/youtu.be\/DVxj_f6DNmI[\/embed]\r\n<h2>\u0395\u03c1\u03bc\u03b7\u03bd\u03b5\u03af\u03b1 \u03c4\u03c9\u03bd \u03b1\u03c0\u03bf\u03c4\u03b5\u03bb\u03b5\u03c3\u03bc\u03ac\u03c4\u03c9\u03bd \u03c4\u03b7\u03c2 \u03b4\u03bf\u03ba\u03b9\u03bc\u03ae\u03c2<\/h2>\r\n<ul>\r\n \t<li><strong>\u0391\u03bd\u03c4\u03bf\u03c7\u03ae \u03c3\u03b5 \u03b5\u03c6\u03b5\u03bb\u03ba\u03c5\u03c3\u03bc\u03cc<\/strong>: The maximum tensile stress the material can withstand.<\/li>\r\n \t<li><strong>\u0395\u03c0\u03b9\u03bc\u03ae\u03ba\u03c5\u03bd\u03c3\u03b7 \u03ba\u03b1\u03c4\u03ac \u03c4\u03b7 \u03b8\u03c1\u03b1\u03cd\u03c3\u03b7<\/strong>: The extent to which the material stretches before breaking, expressed as a percentage of the original length.<\/li>\r\n \t<li><strong>\u03a3\u03c5\u03bd\u03c4\u03b5\u03bb\u03b5\u03c3\u03c4\u03ae\u03c2 \u03b5\u03bb\u03b1\u03c3\u03c4\u03b9\u03ba\u03cc\u03c4\u03b7\u03c4\u03b1\u03c2<\/strong>: The ratio of stress to strain in the elastic deformation phase, indicating the material's stiffness.<\/li>\r\n<\/ul>\r\n<h2>\u03a4\u03b5\u03c3\u03c4 \u03a3\u03b7\u03bc\u03b1\u03bd\u03c4\u03b9\u03ba\u03cc\u03c4\u03b7\u03c4\u03b1<\/h2>\r\n<ul>\r\n \t<li><strong>\u03a0\u03bf\u03b9\u03bf\u03c4\u03b9\u03ba\u03cc\u03c2 \u03ad\u03bb\u03b5\u03b3\u03c7\u03bf\u03c2<\/strong>: Ensures materials meet specific strength and flexibility requirements for their intended use.<\/li>\r\n \t<li><strong>Material Comparison<\/strong>: Allows for the comparison of different plastic materials or different batches of the same material.<\/li>\r\n \t<li><strong>Design Validation<\/strong>: Assists in validating the design and durability of products that use these materials.<\/li>\r\n<\/ul>\r\n<h2>\u0391\u03c0\u03b1\u03b9\u03c4\u03ae\u03c3\u03b5\u03b9\u03c2 \u03bf\u03c1\u03b3\u03ac\u03bd\u03c9\u03bd<\/h2>\r\n[caption id=\"attachment_4119\" align=\"aligncenter\" width=\"300\"]<a href=\"https:\/\/www.qualitester.com\/el\/%cf%80%cf%81%ce%bf%cf%8a%cf%8c%ce%bd\/tensile-tester-tst-01\/\"><img class=\"size-medium wp-image-4119\" src=\"https:\/\/www.qualitester.com\/wp-content\/uploads\/2023\/04\/TST-01-Tensile-Tester-02-2-300x300.jpg\" alt=\"ASTM D882 Thin Plastic Sheeting Tensile Tester\" width=\"300\" height=\"300\" \/><\/a> <a href=\"https:\/\/www.qualitester.com\/el\/%cf%80%cf%81%ce%bf%cf%8a%cf%8c%ce%bd\/tensile-tester-tst-01\/\" target=\"_blank\" rel=\"noopener\">ASTM D882 Thin Plastic Sheeting Tensile Tester<\/a>[\/caption]\r\n<ul>\r\n \t<li><strong>Tensile Testing Machine<\/strong>: Must be capable of applying the necessary force and measuring elongation accurately.<\/li>\r\n \t<li><strong>Grips<\/strong>: Should be suitable for the material being tested to prevent slippage and ensure even force distribution.<\/li>\r\n \t<li><strong>Environment Control<\/strong>: Equipment to maintain standard temperature and humidity conditions for specimen conditioning.<\/li>\r\n<\/ul>\r\n<h4>Precautions:<\/h4>\r\n<ul>\r\n \t<li><strong>\u03a0\u03c1\u03bf\u03b5\u03c4\u03bf\u03b9\u03bc\u03b1\u03c3\u03af\u03b1 \u03b4\u03b5\u03af\u03b3\u03bc\u03b1\u03c4\u03bf\u03c2<\/strong>: Ensure specimens are cut accurately and without defects.<\/li>\r\n \t<li><strong>Machine Calibration<\/strong>: Regularly calibrate the tensile testing machine to ensure accurate results.<\/li>\r\n \t<li><strong>Alignment<\/strong>: Properly align specimens in the grips to avoid uneven stress distribution.<\/li>\r\n<\/ul>","link":"https:\/\/www.qualitester.com\/el\/product-category\/astm\/astm-d882\/","name":"ASTM D882","slug":"astm-d882","taxonomy":"product_cat","parent":99,"meta":[],"_links":{"self":[{"href":"https:\/\/www.qualitester.com\/el\/wp-json\/wp\/v2\/product_cat\/110","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.qualitester.com\/el\/wp-json\/wp\/v2\/product_cat"}],"about":[{"href":"https:\/\/www.qualitester.com\/el\/wp-json\/wp\/v2\/taxonomies\/product_cat"}],"up":[{"embeddable":true,"href":"https:\/\/www.qualitester.com\/el\/wp-json\/wp\/v2\/product_cat\/99"}],"wp:post_type":[{"href":"https:\/\/www.qualitester.com\/el\/wp-json\/wp\/v2\/product?product_cat=110"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}