{"id":309113,"date":"2024-10-19T21:13:26","date_gmt":"2024-10-19T21:13:26","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-iso-16562019\/"},"modified":"2024-10-25T18:54:49","modified_gmt":"2024-10-25T18:54:49","slug":"bs-iso-16562019","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-iso-16562019\/","title":{"rendered":"BS ISO 1656:2019"},"content":{"rendered":"

This document specifies a macro-method and a semi-micro method for the determination of nitrogen in raw natural rubber and in natural rubber latex using variants of the Kjeldahl process.<\/p>\n

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\n NOTE\n <\/div>\n

The determination of nitrogen in natural rubber is usually carried out in order to arrive at an estimate of the protein content. Minor amounts of non-proteinous nitrogen containing constituents are also present. However, in the dry solids prepared from natural rubber latex, these materials can make a substantial contribution to the total nitrogen content.<\/p>\n<\/div>\n

PDF Catalog<\/h4>\n\n\n\n\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
6<\/td>\nForeword <\/td>\n<\/tr>\n
8<\/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 Macro-method
5.1 Reagents <\/td>\n<\/tr>\n
11<\/td>\n5.2 Apparatus
5.3 Sampling and preparation of test portion
5.4 Procedure <\/td>\n<\/tr>\n
12<\/td>\n5.5 Blank test
5.6 Expression of results <\/td>\n<\/tr>\n
13<\/td>\n6 Semi-micro method
6.1 Reagents <\/td>\n<\/tr>\n
15<\/td>\n6.2 Apparatus <\/td>\n<\/tr>\n
23<\/td>\n6.3 Sampling and preparation of test portion
6.4 Procedure <\/td>\n<\/tr>\n
24<\/td>\n6.5 Blank test <\/td>\n<\/tr>\n
25<\/td>\n6.6 Expression of results
7 Precision
8 Test report <\/td>\n<\/tr>\n
27<\/td>\nAnnex\u00a0A (informative) Precision <\/td>\n<\/tr>\n
29<\/td>\nBibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

Rubber, raw natural, and rubber latex, natural. Determination of nitrogen content<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
BSI<\/b><\/a><\/td>\n2019<\/td>\n30<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":309120,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[1172,2641],"product_tag":[],"class_list":{"0":"post-309113","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-83-040-10","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\/309113","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\/309120"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=309113"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=309113"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=309113"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}