{"id":446304,"date":"2024-10-20T08:46:09","date_gmt":"2024-10-20T08:46:09","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-iso-184752023\/"},"modified":"2024-10-26T16:20:21","modified_gmt":"2024-10-26T16:20:21","slug":"bs-iso-184752023","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-iso-184752023\/","title":{"rendered":"BS ISO 18475:2023"},"content":{"rendered":"

PDF Catalog<\/h4>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\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>\nundefined <\/td>\n<\/tr>\n
7<\/td>\nForeword <\/td>\n<\/tr>\n
9<\/td>\nIntroduction <\/td>\n<\/tr>\n
11<\/td>\n1 Scope
2 Normative references <\/td>\n<\/tr>\n
12<\/td>\n3 Terms and definitions <\/td>\n<\/tr>\n
13<\/td>\n4 Principle <\/td>\n<\/tr>\n
14<\/td>\n5 Interferences
5.1 Interference with sampling and extraction
5.2 Interference with GC <\/td>\n<\/tr>\n
15<\/td>\n6 Safety remarks
7 Reagents
7.1 General
7.2 Reagents for extraction
7.3 Reagents for clean-up
7.3.1 Clean-up A using aluminium oxide <\/td>\n<\/tr>\n
16<\/td>\n7.3.2 Clean-up B using silica gel 60 for column chromatography
7.3.3 Clean-up C using gel permeation chromatography (GPC)
7.3.4 Clean-up D using Florisil\u00ae <\/td>\n<\/tr>\n
17<\/td>\n7.3.5 Clean-up E using silica H2SO4\/silica NaOH
7.3.6 Clean-up F using benzenesulfonic acid\/sulfuric acid
7.3.7 Clean-up G using TBA sulfite reagent
7.3.8 Clean-up H using pyrogenic copper <\/td>\n<\/tr>\n
18<\/td>\n7.3.9 Clean-up I using silica\/silver nitrate
7.4 Gas chromatographic analysis <\/td>\n<\/tr>\n
19<\/td>\n7.5 Standards
7.5.1 General
7.5.2 Calibration standards
7.5.3 Internal and injection standards <\/td>\n<\/tr>\n
20<\/td>\n7.6 Preparation of standard solutions
7.6.1 Preparation of calibration standard solutions of PCBs <\/td>\n<\/tr>\n
21<\/td>\n7.6.2 Preparation of internal standard solution
7.6.3 Preparation of injection standard solution
8 Apparatus
8.1 Extraction and clean-up procedures <\/td>\n<\/tr>\n
22<\/td>\n8.2 Gas chromatograph
9 Sample storage and preservation
9.1 Sample storage <\/td>\n<\/tr>\n
23<\/td>\n9.2 Sample pre-treatment
10 Procedure
10.1 Blank test
10.2 Extraction
10.2.1 General <\/td>\n<\/tr>\n
24<\/td>\n10.2.2 Extraction procedure 1: Samples using acetone\/petroleum ether or hexane-like solvent and agitation or sonication <\/td>\n<\/tr>\n
25<\/td>\n10.2.3 Extraction procedure 2: Samples using Soxhlet or pressurized liquid extraction
10.2.4 Extraction procedure 3: Samples using acetone\/petroleum ether or hexane-like solvent\/sodium chloride and agitation <\/td>\n<\/tr>\n
26<\/td>\n10.3 Concentration
10.4 Clean-up of the extract
10.4.1 General <\/td>\n<\/tr>\n
27<\/td>\n10.4.2 Clean-up A \u2013 Aluminium oxide
10.4.3 Clean-up B \u2013 Silica gel
10.4.4 Clean-up C \u2013 Gel permeation chromatography <\/td>\n<\/tr>\n
28<\/td>\n10.4.5 Clean-up D \u2013 Florisil\u00ae
10.4.6 Clean-up E \u2013 Silica H2SO4\/silica NaOH
10.4.7 Clean-up F \u2013 Benzenesulfonic acid\/sulfuric acid <\/td>\n<\/tr>\n
29<\/td>\n10.4.8 Clean-up G \u2013 TBA sulfite reagent
10.4.9 Clean-up H \u2013 Clean-up using pyrogenic copper to remove elemental sulfur and some other organic sulfur compounds
10.4.10 Clean up I \u2013 AgNO3\/silica
10.5 Addition of the injection standard
10.6 Gas chromatographic analysis (GC)
10.6.1 General
10.6.2 Setting the gas chromatograph <\/td>\n<\/tr>\n
30<\/td>\n10.7 Mass spectrometry (MS)
10.7.1 Mass spectrometric conditions
10.7.2 Calibration of the method using an internal standard <\/td>\n<\/tr>\n
31<\/td>\n10.7.3 Measurement <\/td>\n<\/tr>\n
32<\/td>\n10.7.4 Identification
10.7.5 Check on method performance <\/td>\n<\/tr>\n
33<\/td>\n10.7.6 Calculation <\/td>\n<\/tr>\n
34<\/td>\n10.8 Electron capture detection (ECD)
10.8.1 General
10.8.2 ECD conditions
10.8.3 Calibration of the method using internal standards
10.8.4 Measurement
10.8.5 Identification
10.8.6 Check on ECD method performance <\/td>\n<\/tr>\n
35<\/td>\n10.8.7 Calculation
11 Performance characteristics
12 Precision <\/td>\n<\/tr>\n
36<\/td>\n13 Test report <\/td>\n<\/tr>\n
37<\/td>\nAnnex A (informative) Repeatability and reproducibility data <\/td>\n<\/tr>\n
42<\/td>\nAnnex B (informative) Examples for gas chromatographic conditions and retention times of PCBs <\/td>\n<\/tr>\n
43<\/td>\nAnnex C (informative) Calculation method for the estimation of total PCB content <\/td>\n<\/tr>\n
50<\/td>\nBibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

Environmental solid matrices. Determination of polychlorinated biphenyls (PCB) by gas chromatography. mass selective detection (GC-MS) or electron-capture detection (GC-ECD)<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
BSI<\/b><\/a><\/td>\n2023<\/td>\n52<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":446315,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[223,2641],"product_tag":[],"class_list":{"0":"post-446304","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-13-080-10","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\/446304","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\/446315"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=446304"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=446304"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=446304"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}