{"id":528868,"date":"2024-11-05T15:42:31","date_gmt":"2024-11-05T15:42:31","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/din-en-13999-4\/"},"modified":"2024-11-05T15:42:31","modified_gmt":"2024-11-05T15:42:31","slug":"din-en-13999-4","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/din\/din-en-13999-4\/","title":{"rendered":"DIN EN 13999-4"},"content":{"rendered":"<p>This European Standard specifies a procedure for the determination of volatile isocyanates in the exhaust air of an emission test chamber after application of a low-solvent or solvent-free adhesive as defined in EN 923. The method is based on chemosorption of volatile isocyanates with 1-(2-methoxyphenyl) piperazine (in the following: 1-2MP) impregnated filters with subsequent desorption and liquid chromatographic analysis. The method permits measurement of a wide range of organic compounds containing isocyanate functional groups (NCO), including isocyanate monomers. For testing of adhesives emissions mainly toluene diisocyanate (TDI) and methylene bis (4-phenyl isocyanate also known as 4,4-diisocyanato-diphenylmethane or MDI), are of concern. The method as described in this European Standard can be used for other isocyanates too, such as isophorone diisocyanate (IPDI) and 1,6-hexamethylene diisocyanate (HDI) &#8211; see ISO 16702. Isocyanate oligomers or prepolymers are not volatile enough to be detected in emission test chambers at room temperature.<\/p>\n","protected":false},"excerpt":{"rendered":"<p><b>Adhesives &#8211; Short term method for measuring the emission properties of low-solvent or solvent-free adhesives after application &#8211; Part 4: Determination of volatile diisocyanates<\/b><\/p>\n<table style=\"width: 100%\" border=\"0\" cellspacing=\"0\" cellpadding=\"0\">\n<tbody>\n<tr>\n<td>Published By<\/td>\n<td>Publication Date<\/td>\n<td>Number of Pages<\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/pdfstandards.shop\/product-category\/publishers\/din\/\"><b>DIN<\/b><\/a><\/td>\n<td>2009-08<\/td>\n<td>13<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":528883,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[1196,2635],"product_tag":[],"class_list":{"0":"post-528868","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-83-180","7":"product_cat-din","9":"first","10":"instock","11":"sold-individually","12":"shipping-taxable","13":"purchasable","14":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/528868","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media\/528883"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=528868"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=528868"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=528868"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}