{"id":338643,"date":"2024-10-19T23:42:01","date_gmt":"2024-10-19T23:42:01","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-iso-239202020\/"},"modified":"2024-10-25T22:48:22","modified_gmt":"2024-10-25T22:48:22","slug":"bs-iso-239202020","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-iso-239202020\/","title":{"rendered":"BS ISO 23920:2020"},"content":{"rendered":"

This document specifies a method for the quantification of ammonia by ion chromatography in mainstream smoke using ISO 20778<\/span><\/span> smoking parameters.<\/p>\n

This method is applicable to an ammonia yield of about 10 \u00b5g\/cigarette to 40 \u00b5g\/cigarette. It is not applicable for the determination of ammonia in dark-air cured cigarettes.<\/p>\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>\nundefined <\/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 Apparatus
6 Reagents <\/td>\n<\/tr>\n
11<\/td>\n7 Preparation
7.1 General
7.2 Preparation of solutions
7.2.1 Sulphuric acid, 0,01 M \u2014 Impinger solution (trapping system 1)
7.2.2 Sulphuric acid, 0,1 M \u2014 Solution C (Ion Chromatography Eluent)
7.2.3 MSA 0,003 M \u2014 Solution A (Ion chromatography eluent)
7.2.4 Sulphuric acid, 0,01 M \u2014 Ammonium standards preparation
7.2.5 Hydrochloric acid, 0,05 M \u2014 Solution for GFP impregnation (trapping system 2)
7.2.6 Hydrochloric acid, 0,01 M \u2014 Extraction solution (trapping system 2)
7.3 Preparation of standards
7.3.1 Primary ammonium stock solution <\/td>\n<\/tr>\n
12<\/td>\n7.3.2 Calibration standards
8 Sampling
9 Tobacco product preparation
10 Sample generation \u2014 Smoking of cigarettes
10.1 General
10.2 Smoking machine setup
10.2.1 General
10.2.2 Trapping system 1 \u2014 GFP and impinger traps <\/td>\n<\/tr>\n
13<\/td>\n10.2.3 Trapping system 2 \u2014 Impregnated GFP <\/td>\n<\/tr>\n
14<\/td>\n10.3 Smoking
11 Sample analysis
11.1 Preparation of sample
11.1.1 Extraction of GFP \u2013 Trapping system 1
11.1.2 Extraction of GFP \u2013 Trapping system 2
11.2 Determination
11.2.1 Ion chromatography operating conditions <\/td>\n<\/tr>\n
15<\/td>\n11.2.2 Calibration <\/td>\n<\/tr>\n
16<\/td>\n11.2.3 Calculation
12 Repeatability and reproducibility
12.1 General <\/td>\n<\/tr>\n
17<\/td>\n12.2 Results of the 2015 collaborative study
13 Report <\/td>\n<\/tr>\n
18<\/td>\nAnnex A (informative) Examples of chromatograms <\/td>\n<\/tr>\n
19<\/td>\nBibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

Cigarettes. Determination of ammonia in cigarette mainstream smoke with an intense smoking regime using ion chromatography<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
BSI<\/b><\/a><\/td>\n2020<\/td>\n20<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":338653,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2641],"product_tag":[],"class_list":{"0":"post-338643","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-bsi","8":"first","9":"instock","10":"sold-individually","11":"shipping-taxable","12":"purchasable","13":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/338643","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\/338653"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=338643"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=338643"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=338643"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}