{"id":318613,"date":"2024-10-19T22:00:34","date_gmt":"2024-10-19T22:00:34","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-iso-787-282019\/"},"modified":"2024-10-25T20:18:26","modified_gmt":"2024-10-25T20:18:26","slug":"bs-iso-787-282019","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-iso-787-282019\/","title":{"rendered":"BS ISO 787-28:2019"},"content":{"rendered":"

This document specifies a method for determining the total content of polychlorinated biphenyls (PCBs), checking for all 209 possible congeners in pigment materials.<\/p>\n

This document is applicable to a working range from1 mg\/kg to 150 mg\/kg. The lower quantitation limit of this method is 1 mg\/kg per congener. Results below 1 mg\/kg are considered to be qualitative only.<\/p>\n

PDF Catalog<\/h4>\n\n\n\n\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
7<\/td>\nIntroduction <\/td>\n<\/tr>\n
9<\/td>\n1 Scope
2 Normative references
3 Terms and definitions <\/td>\n<\/tr>\n
10<\/td>\n4 Principle
5 Sampling
6 Procedure
6.1 General <\/td>\n<\/tr>\n
11<\/td>\n6.2 Clean-up to eliminate interfering species
6.3 Separation and quantification
7 Reagents
7.1 Safety precautions <\/td>\n<\/tr>\n
12<\/td>\n7.2 Reagents, solvents and absorbents
7.3 Internal reference materials for PCBs, 13C12-labelled <\/td>\n<\/tr>\n
13<\/td>\n7.4 Cleaning\/disposal agents
8 Apparatus <\/td>\n<\/tr>\n
14<\/td>\n9 Procedure
9.1 Preparation of test sample <\/td>\n<\/tr>\n
15<\/td>\n9.2 Liquid-liquid extraction
9.2.1 Separation funnel <\/td>\n<\/tr>\n
16<\/td>\n9.2.2 Ludwig extraction
9.3 Clean-up
9.3.1 General
9.3.2 Diatomaceous earth-sulfuric acid column (optional) <\/td>\n<\/tr>\n
17<\/td>\n9.3.3 Gel permeation (size exclusion) chromatography\/porous styrene divinylbenzene beads-column (optional) <\/td>\n<\/tr>\n
18<\/td>\n9.3.4 Multilayer columns (obligatory) <\/td>\n<\/tr>\n
19<\/td>\n9.3.5 Alumina column (optional)
9.4 Preparation of GC solution and GC procedure <\/td>\n<\/tr>\n
20<\/td>\n9.5 Calculation and quantitation procedure <\/td>\n<\/tr>\n
21<\/td>\n10 Test report <\/td>\n<\/tr>\n
23<\/td>\nAnnex A (informative) Nomenclature of PCBs <\/td>\n<\/tr>\n
29<\/td>\nBibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

General methods of tests for pigments and extenders – Determination of total content of polychlorinated biphenyls (PCB) by dissolution, cleanup and GC-MS<\/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":318618,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[1214,2641],"product_tag":[],"class_list":{"0":"post-318613","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-87-060-10","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\/318613","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\/318618"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=318613"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=318613"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=318613"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}