{"id":18612,"date":"2025-10-12T12:46:26","date_gmt":"2025-10-12T12:46:26","guid":{"rendered":"https:\/\/www.qualtechproductsindustry.com\/tappi-t-549-cof-of-paper-paperboard-with-the-horizontal-plane-method-discuss-the-specific-use-and-purpose-you-can-write-extensively-about-what-a-particular-astm-test-method-is-design\/"},"modified":"2025-10-19T18:37:25","modified_gmt":"2025-10-19T18:37:25","slug":"tappi-t-549","status":"publish","type":"post","link":"https:\/\/www.qualtechproductsindustry.com\/fi\/tappi-t-549\/","title":{"rendered":"TAPPI T 549 \u2014 Paperin ja kartongin laatu: k\u00e4ytt\u00f6, tarkoitus ja alan n\u00e4kemykset"},"content":{"rendered":"<p>Kun sinun on mitattava, kuinka helposti paperi tai kartonki liukuu pintoja vasten, TAPPI T 549 tarjoaa alan standardimenetelm\u00e4n kitkakertoimen (COF) m\u00e4\u00e4ritt\u00e4miseen. T\u00e4ss\u00e4 testiss\u00e4 k\u00e4ytet\u00e4\u00e4n vaakasuoraa tasomenetelm\u00e4\u00e4 mittaamaan voimaa, joka tarvitaan yhden materiaalin siirt\u00e4miseen toisen yli vakionopeudella. Testi on v\u00e4ltt\u00e4m\u00e4t\u00f6n\u2026 <\/p>\n<div class=\"pmpro\">\n<div class=\"pmpro_card pmpro_content_message\">\n<h2 class=\"pmpro_card_title pmpro_font-large\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"24\" height=\"24\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"var(--pmpro--color--accent)\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\" class=\"feather feather-lock\"><rect x=\"3\" y=\"11\" width=\"18\" height=\"11\" rx=\"2\" ry=\"2\"><\/rect><path d=\"M7 11V7a5 5 0 0 1 10 0v4\"><\/path><\/svg>N\u00e4kemyksi\u00e4 ja kommentteja tarjoavan kokoelman j\u00e4senyys vaaditaan<\/h2>\n<div class=\"pmpro_card_content\">\n<p> Sinun on oltava Insights &amp; Commentary Collectionin j\u00e4sen k\u00e4ytt\u00e4\u00e4ksesi t\u00e4t\u00e4 sis\u00e4lt\u00f6\u00e4.<\/p>\n<p><a class=\"pmpro_btn\" href=\"https:\/\/www.qualtechproductsindustry.com\/fi\/membership-checkout\/?pmpro_level=1\">Liity nyt<\/a><\/p>\n<\/div>\n<div class=\"pmpro_card_actions pmpro_font-medium\">Oletko jo j\u00e4sen? <a href=\"https:\/\/www.qualtechproductsindustry.com\/fi\/login\/?redirect_to=https%3A%2F%2Fwww.qualtechproductsindustry.com%2Ffi%2Ftappi-t-549%2F\">Kirjaudu sis\u00e4\u00e4n t\u00e4\u00e4lt\u00e4<\/a><\/div>\n<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>When you need to measure how easily paper or paperboard slides against surfaces, TAPPI T 549 provides the industry standard method for determining the coefficient of friction (COF). This test uses the horizontal plane method to measure the force needed to move one material across another at a constant speed. The test is essential for... <\/p>\n<div class=\"pmpro\"><div class=\"pmpro_card pmpro_content_message\"><h2 class=\"pmpro_card_title pmpro_font-large\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"24\" height=\"24\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"var(--pmpro--color--accent)\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\" class=\"feather feather-lock\"><rect x=\"3\" y=\"11\" width=\"18\" height=\"11\" rx=\"2\" ry=\"2\"><\/rect><path d=\"M7 11V7a5 5 0 0 1 10 0v4\"><\/path><\/svg>N\u00e4kemyksi\u00e4 ja kommentteja tarjoavan kokoelman j\u00e4senyys vaaditaan<\/h2><div class=\"pmpro_card_content\"><p> Sinun on oltava Insights &amp; Commentary Collectionin j\u00e4sen k\u00e4ytt\u00e4\u00e4ksesi t\u00e4t\u00e4 sis\u00e4lt\u00f6\u00e4.<\/p><p><a class=\"pmpro_btn\" href=\"https:\/\/www.qualtechproductsindustry.com\/fi\/membership-checkout\/?pmpro_level=1\">Liity nyt<\/a><\/p><\/div><div class=\"pmpro_card_actions pmpro_font-medium\">Oletko jo j\u00e4sen? <a href=\"https:\/\/www.qualtechproductsindustry.com\/fi\/login\/?redirect_to=https%3A%2F%2Fwww.qualtechproductsindustry.com%2Ffi%2Ftappi-t-549%2F\">Kirjaudu sis\u00e4\u00e4n t\u00e4\u00e4lt\u00e4<\/a><\/div><\/div><\/div>","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"pmpro_default_level":"","footnotes":""},"categories":[534,543],"tags":[],"class_list":["post-18612","post","type-post","status-publish","format-standard","hentry","category-science","category-tappi","pmpro-level-required","pmpro-level-1","pmpro-no-access"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>TAPPI T 549 \u2014 COF of Paper &amp; Paperboard: Use, Purpose, and Industry Insight - QUALTECH PRODUCTS INDUSTRY<\/title>\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.qualtechproductsindustry.com\/fi\/tappi-t-549\/\" \/>\n<meta property=\"og:locale\" content=\"fi_FI\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"TAPPI T 549 \u2014 COF of Paper &amp; Paperboard: Use, Purpose, and Industry Insight - QUALTECH PRODUCTS INDUSTRY\" \/>\n<meta property=\"og:description\" content=\"When you need to measure how easily paper or paperboard slides against surfaces, TAPPI T 549 provides the industry standard method for determining the coefficient of friction (COF). 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