{"id":324347,"date":"2024-10-19T22:29:15","date_gmt":"2024-10-19T22:29:15","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-en-iso-5398-32018\/"},"modified":"2024-10-25T21:05:03","modified_gmt":"2024-10-25T21:05:03","slug":"bs-en-iso-5398-32018","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-en-iso-5398-32018\/","title":{"rendered":"BS EN ISO 5398-3:2018"},"content":{"rendered":"

This document describes a method for the determination of chromium in aqueous solution obtained from leather. This is an analysis for total chromium in leather; it is not compound specific or specific to its oxidation state.<\/p>\n

This method describes the determination of chromium by atomic absorption spectrometry and is applicable to leathers which are expected to have chromic oxide contents in excess of 5 mg\/kg. Two techniques for the preparation of the solution to be analysed are included. In the case of disputes, the wet oxidation technique is to be used.<\/p>\n

PDF Catalog<\/h4>\n\n\n\n\n\n\n\n\n\n\n\n\n
PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
2<\/td>\nNational foreword <\/td>\n<\/tr>\n
4<\/td>\nEuropean foreword <\/td>\n<\/tr>\n
6<\/td>\nForeword <\/td>\n<\/tr>\n
7<\/td>\nIntroduction <\/td>\n<\/tr>\n
9<\/td>\n1 Scope
2 Normative references
3 Terms and definitions
4 Principle <\/td>\n<\/tr>\n
10<\/td>\n5 Sampling and sample preparation
6 Reagents
6.1 Reagents for wet oxidation method
6.2 Reagents for atomic absorption spectrometry
7 Apparatus <\/td>\n<\/tr>\n
11<\/td>\n8 Methods
8.1 Preparation of analytical solution
8.1.1 Wet oxidation method
8.1.2 Microwave digestion method
8.2 Measurement of the aqueous solution
8.2.1 General
8.2.2 Preparation of calibration graph
8.2.3 Analysis of the test solution <\/td>\n<\/tr>\n
12<\/td>\n9 Calculation and expression of results
10 Test report <\/td>\n<\/tr>\n
13<\/td>\nAnnex A (informative) Determination of water and other volatile matter <\/td>\n<\/tr>\n
14<\/td>\nAnnex B (informative) Suitable atomic absorption spectrometry (AAS) equipment <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

Leather. Chemical determination of chromic oxide content – Quantification by atomic absorption spectrometry<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
BSI<\/b><\/a><\/td>\n2018<\/td>\n16<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":324355,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[904,2641],"product_tag":[],"class_list":{"0":"post-324347","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-59-140-30","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\/324347","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\/324355"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=324347"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=324347"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=324347"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}