{"id":324345,"date":"2024-10-19T22:29:15","date_gmt":"2024-10-19T22:29:15","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-en-iso-5398-12018\/"},"modified":"2024-10-25T21:05:00","modified_gmt":"2024-10-25T21:05:00","slug":"bs-en-iso-5398-12018","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-en-iso-5398-12018\/","title":{"rendered":"BS EN ISO 5398-1:2018"},"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 chrome by iodometric titration and is to be applicable to chromium-tanned leathers which are expected to have chromic oxide contents in excess of 0,3 %. Two different methods are described as alternatives for obtaining chromium in a suitable solution. It is appropriate to use either method.<\/p>\n

PDF Catalog<\/h4>\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 Wet oxidation method
6.2 Alkaline fusion method
6.3 Iodometric titration
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 Alkaline fusion method
8.2 Measurement of the aqueous solution
9 Calculation and expression of results
9.1 General <\/td>\n<\/tr>\n
12<\/td>\n9.2 Repeatability
10 Test report <\/td>\n<\/tr>\n
13<\/td>\nAnnex A (informative) Determination of water and other volatile matter <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

Leather. Chemical determination of chromic oxide content – Quantification by titration<\/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>\n14<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":324354,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[904,2641],"product_tag":[],"class_list":{"0":"post-324345","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\/324345","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\/324354"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=324345"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=324345"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=324345"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}