{"id":324121,"date":"2024-10-19T22:28:02","date_gmt":"2024-10-19T22:28:02","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-iso-209212019\/"},"modified":"2024-10-25T21:03:21","modified_gmt":"2024-10-25T21:03:21","slug":"bs-iso-209212019","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-iso-209212019\/","title":{"rendered":"BS ISO 20921:2019"},"content":{"rendered":"<p>This document specifies the determination of the ratio of nitrogen isotopes in cotton fibres that are used for textile production. It applies not only to cotton textiles but also to raw cotton taken from cotton fields.<\/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>2<b><\/td>\n<td>National foreword  <\/td>\n<\/tr>\n<tr>\n<td><b>6<b><\/td>\n<td>Foreword  <\/td>\n<\/tr>\n<tr>\n<td><b>7<b><\/td>\n<td>Introduction  <\/td>\n<\/tr>\n<tr>\n<td><b>9<b><\/td>\n<td>1 Scope <br \/> 2 Normative references <br \/> 3 Terms and definitions  <\/td>\n<\/tr>\n<tr>\n<td><b>10<b><\/td>\n<td>4 Principle <br \/> 5 Reagent <br \/> 6 Apparatus  <\/td>\n<\/tr>\n<tr>\n<td><b>11<b><\/td>\n<td>7 Preparation <br \/> 7.1 Sampling of test specimen <br \/> 7.2 Pre-treatment of test specimen <br \/> 8 Test procedure <br \/> 8.1 Weighing of aliquot <br \/> 8.1.1 Determination of weighing amount needed <br \/> 8.1.2 General weighing procedure  <\/td>\n<\/tr>\n<tr>\n<td><b>12<b><\/td>\n<td>8.2 Natural 15N abundance analysis <br \/> 8.2.1 Instrumentation <br \/> 8.2.2 General analytical procedure  <\/td>\n<\/tr>\n<tr>\n<td><b>13<b><\/td>\n<td>9 Precision <br \/> 10 Test report  <\/td>\n<\/tr>\n<tr>\n<td><b>14<b><\/td>\n<td>Annex A (normative) Identification procedure of organic raw cotton fibres by using stable nitrogen isotope ratios  <\/td>\n<\/tr>\n<tr>\n<td><b>16<b><\/td>\n<td>Annex B (informative) Analytical results of cotton fibres of various origin and process stage  <\/td>\n<\/tr>\n<tr>\n<td><b>18<b><\/td>\n<td>Bibliography  <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"<p><b>Textiles. Determination of stable nitrogen isotope ratio in cotton fibres<\/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>2019<\/td>\n<td>20<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":324127,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[874,2641],"product_tag":[],"class_list":{"0":"post-324121","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-59-060-10","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\/324121","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\/324127"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=324121"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=324121"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=324121"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}