{"id":137,"count":4,"description":"<h3><strong>\u5fdc\u52df\u66f8\u985e<\/strong><\/h3>\r\n<a href=\"https:\/\/www.astm.org\/d0689-17.html\" target=\"_blank\" rel=\"noopener\">ASTM D689<\/a> \u7d19\u3068\u677f\u7d19\u306e\u5f15\u304d\u88c2\u304d\u5f37\u5ea6\u3092\u6e2c\u5b9a\u3059\u308b\u305f\u3081\u306e\u6a19\u6e96\u8a66\u9a13\u65b9\u6cd5\u3092\u898f\u5b9a\u3057\u3066\u3044\u307e\u3059\u3002\u3053\u306e\u8a66\u9a13\u306f\u3001\u5305\u88c5\u3001\u5370\u5237\u3001\u304a\u3088\u3073\u7d19\u306e\u5f37\u5ea6\u304c\u91cd\u8981\u3068\u306a\u308b\u305d\u306e\u4ed6\u306e\u7528\u9014\u3067\u4f7f\u7528\u3055\u308c\u308b\u6750\u6599\u306e\u54c1\u8cea\u3068\u8010\u4e45\u6027\u3092\u8a55\u4fa1\u3059\u308b\u305f\u3081\u306b\u4e0d\u53ef\u6b20\u3067\u3059\u3002\r\n<h3><strong>\u30c6\u30b9\u30c8\u30d7\u30ed\u30bb\u30b9<\/strong><\/h3>\r\nThe test involves using a tear tester for paper, such as the Elmendorf-type tear tester. A sample of the paper or paperboard is prepared, with a specific notch cut into it. The sample is then clamped into the tester, and the instrument applies a controlled force to propagate the tear through the material. The force required to complete the tear is recorded.\r\n\r\n[embed]https:\/\/youtu.be\/oo5j21g_thM[\/embed]\r\n<h3><strong>\u30c6\u30b9\u30c8\u7d50\u679c\u306e\u89e3\u91c8<\/strong><\/h3>\r\nThe test result is expressed in terms of the tearing resistance of the paper, usually in grams-force (gf). Higher values indicate greater resistance to tearing, implying a stronger and more durable material. These results help manufacturers and quality control professionals assess the material's suitability for its intended use.\r\n<h3><strong>\u30c6\u30b9\u30c8\u306e\u610f\u7fa9<\/strong><\/h3>\r\nThe tear strength test is significant because it provides a quantitative measure of the paper's durability and performance under stress. This information is vital for ensuring that paper products meet specific quality standards and can withstand handling and processing without failure.\r\n<h3><strong>\u6a5f\u5668\u8981\u4ef6<\/strong><\/h3>\r\n<a href=\"https:\/\/www.qualitester.com\/ja\/%e8%a3%bd%e5%93%81\/easy-to-operate-paper-and-film-tear-testing-instruments-elmendorf-method\/\"><img class=\"aligncenter wp-image-4120 size-medium\" src=\"https:\/\/www.qualitester.com\/wp-content\/uploads\/2023\/04\/SLD-01-Elmendorf-Tearing-Tester-5-300x300.jpg\" alt=\"ASTM D689 \u7d19\u7528\u5f15\u88c2\u8a66\u9a13\u6a5f\" width=\"300\" height=\"300\" \/><\/a>\r\n\r\nThe primary instrument used in this test is the tear tester for paper, which must be calibrated and maintained according to the manufacturer's specifications. The instrument should provide accurate and repeatable results, with a reliable method for clamping and tearing the sample.\r\n<h3><strong>\u4e88\u9632<\/strong><\/h3>\r\n<span style=\"font-size: 16px\">\u30b5\u30f3\u30d7\u30eb\u304c\u6a19\u6e96\u5bf8\u6cd5\u3068\u30ce\u30c3\u30c1\u30f3\u30b0\u8981\u4ef6\u306b\u5f93\u3063\u3066\u6e96\u5099\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002<\/span>\r\n<ol>\r\n \t<li>\u30c6\u30b9\u30c8\u3092\u5b9f\u65bd\u3059\u308b\u524d\u306b\u3001\u5f15\u88c2\u304d\u8a66\u9a13\u6a5f\u304c\u9069\u5207\u306b\u6821\u6b63\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/li>\r\n \t<li>\u7d50\u679c\u306b\u5f71\u97ff\u3092\u53ca\u307c\u3059\u53ef\u80fd\u6027\u306e\u3042\u308b\u30c6\u30b9\u30c8\u524d\u306e\u640d\u50b7\u3092\u907f\u3051\u308b\u305f\u3081\u3001\u7d19\u306e\u30b5\u30f3\u30d7\u30eb\u306f\u614e\u91cd\u306b\u53d6\u308a\u6271\u3063\u3066\u304f\u3060\u3055\u3044\u3002<\/li>\r\n \t<li>\u5f15\u88c2\u8a66\u9a13\u88c5\u7f6e\u3092\u4f7f\u7528\u3059\u308b\u969b\u306f\u3001\u602a\u6211\u3092\u9632\u3050\u305f\u3081\u306b\u3059\u3079\u3066\u306e\u5b89\u5168\u624b\u9806\u306b\u5f93\u3063\u3066\u304f\u3060\u3055\u3044\u3002<\/li>\r\n<\/ol>\r\n<h3>\u53c2\u7167<\/h3>\r\nASTM D689-17 \u7d19\u306e\u5185\u90e8\u5f15\u88c2\u62b5\u6297\u306e\u6a19\u6e96\u8a66\u9a13\u65b9\u6cd5","link":"https:\/\/www.qualitester.com\/ja\/%e8%a3%bd%e5%93%81%e3%82%ab%e3%83%86%e3%82%b4%e3%83%aa\/astm\/astm-d689\/","name":"ASTM D689","slug":"astm-d689","taxonomy":"product_cat","parent":99,"meta":[],"_links":{"self":[{"href":"https:\/\/www.qualitester.com\/ja\/wp-json\/wp\/v2\/product_cat\/137","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.qualitester.com\/ja\/wp-json\/wp\/v2\/product_cat"}],"about":[{"href":"https:\/\/www.qualitester.com\/ja\/wp-json\/wp\/v2\/taxonomies\/product_cat"}],"up":[{"embeddable":true,"href":"https:\/\/www.qualitester.com\/ja\/wp-json\/wp\/v2\/product_cat\/99"}],"wp:post_type":[{"href":"https:\/\/www.qualitester.com\/ja\/wp-json\/wp\/v2\/product?product_cat=137"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}