{"id":424522,"date":"2024-10-20T06:52:10","date_gmt":"2024-10-20T06:52:10","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-en-iso-113372023-tc\/"},"modified":"2024-10-26T12:55:02","modified_gmt":"2024-10-26T12:55:02","slug":"bs-en-iso-113372023-tc","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-en-iso-113372023-tc\/","title":{"rendered":"BS EN ISO 11337:2023 &#8211; TC"},"content":{"rendered":"<p>This document specifies a method for determining ??caprolactam and ??laurolactam in polyamides by gas chromatography. It is applicable particularly to the determination of ??caprolactam in polyamide&nbsp;6 and ??laurolactam in polyamide&nbsp;12. Two variants of the basic method are specified. \u2014&nbsp;&nbsp;&nbsp; Method&nbsp;A is an extraction method with boiling methanol, and the extract is injected into a gas chromatograph. \u2014&nbsp; &nbsp;&nbsp; Method&nbsp;B is a method using a solvent, and the solution is injected into a gas chromatograph.<\/p>\n<h4>PDF Catalog<\/h4>\n<table border=\"1px\" class=\"des-table\">\n<tr>\n<th>PDF Pages<\/th>\n<th>PDF Title<\/th>\n<\/tr>\n<tr>\n<td><b>30<b><\/td>\n<td>undefined  <\/td>\n<\/tr>\n<tr>\n<td><b>32<b><\/td>\n<td>European foreword <br \/> Endorsement notice  <\/td>\n<\/tr>\n<tr>\n<td><b>34<b><\/td>\n<td>Foreword   <\/td>\n<\/tr>\n<tr>\n<td><b>35<b><\/td>\n<td>1 Scope  <br \/> 2 Normative references  <br \/> 3 Terms and definitions  <br \/> 4 Method A: Extraction method  <br \/> 4.1 Principle  <br \/> 4.2 Reagents   <\/td>\n<\/tr>\n<tr>\n<td><b>36<b><\/td>\n<td>4.3 Apparatus and materials   <\/td>\n<\/tr>\n<tr>\n<td><b>37<b><\/td>\n<td>4.4 Preparation of test sample   <\/td>\n<\/tr>\n<tr>\n<td><b>38<b><\/td>\n<td>4.5 Procedure  <br \/> 4.5.1 Test portion  <br \/> 4.5.2 Extraction  <br \/> 4.5.3 Preparation of internal-standard solution  <br \/> 4.5.4 Preparation of sample solution  <br \/> 4.5.5 Preparation of calibration solution  <br \/> 4.5.6 Gas-chromatographic analysis of sample and calibration solutions   <\/td>\n<\/tr>\n<tr>\n<td><b>39<b><\/td>\n<td>4.5.7 Evaluation of gas chromatographic peaks  <br \/> 4.6 Expression of results  <br \/> 4.7 Precision   <\/td>\n<\/tr>\n<tr>\n<td><b>40<b><\/td>\n<td>4.8 Test report  <br \/> 5 Method B: Dissolution method  <br \/> 5.1 Principle  <br \/> 5.2 Reagents   <\/td>\n<\/tr>\n<tr>\n<td><b>41<b><\/td>\n<td>5.3 Apparatus   <\/td>\n<\/tr>\n<tr>\n<td><b>42<b><\/td>\n<td>5.4 Preparation of internal-standard solutions  <br \/> 5.4.1 General  <br \/> 5.4.2 Internal standard for unextracted polyamide 6  <br \/> 5.4.3 Internal standard for extracted polyamide 6  <br \/> 5.4.4 Internal standard for polyamide 12   <\/td>\n<\/tr>\n<tr>\n<td><b>43<b><\/td>\n<td>5.4.5 Preparation of calibration solutions   <\/td>\n<\/tr>\n<tr>\n<td><b>44<b><\/td>\n<td>5.4.6 Calibration  <br \/> 5.5 Procedure  <br \/> 5.5.1 Preparation and injection of sample solution  <br \/> 5.5.2 Evaluation of gas-chromatographic peaks  <br \/> 5.5.3 Solvent recovery   <\/td>\n<\/tr>\n<tr>\n<td><b>45<b><\/td>\n<td>5.6 Expression of results  <br \/> 5.7 Precision  <br \/> 5.8 Test report   <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"<p><b>Tracked Changes. Plastics. Polyamides. Determination of \u03b5-caprolactam and \u03c9-laurolactam by gas chromatography<\/b><\/p>\n<table class=\"shortdes-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\/bsi\/\"><b>BSI<\/b><\/a><\/td>\n<td>2023<\/td>\n<td>46<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":424530,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[1179,2641],"product_tag":[],"class_list":{"0":"post-424522","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-83-080-20","7":"product_cat-bsi","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\/424522","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\/424530"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=424522"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=424522"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=424522"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}