{"id":318860,"date":"2024-10-19T22:01:45","date_gmt":"2024-10-19T22:01:45","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-iso-231682019\/"},"modified":"2024-10-25T20:19:55","modified_gmt":"2024-10-25T20:19:55","slug":"bs-iso-231682019","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-iso-231682019\/","title":{"rendered":"BS ISO 23168:2019"},"content":{"rendered":"
This document specifies a method for the determination of the water content of water-borne coating materials and their raw materials by using a gas chromatograph. The preferred working range of this test method is from a water mass fraction of 15 % to a water mass fraction of 90 % but the method can be applied outside of this range.<\/p>\n
PDF Pages<\/th>\n | PDF Title<\/th>\n<\/tr>\n | ||||||
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2<\/td>\n | National foreword <\/td>\n<\/tr>\n | ||||||
6<\/td>\n | Foreword <\/td>\n<\/tr>\n | ||||||
7<\/td>\n | 1 Scope 2 Normative references 3 Terms and definitions 4 Principle <\/td>\n<\/tr>\n | ||||||
8<\/td>\n | 5 Apparatus 5.1 Gas chromatograph 5.2 Sample injection system 5.3 Oven 5.4 Detector 5.5 Capillary column 5.6 Injection syringe 5.7 Data processing 5.8 Sample vials 5.9 Gas filter <\/td>\n<\/tr>\n | ||||||
9<\/td>\n | 5.10 Carrier gas 5.11 Analytical balance 5.12 Bottle-top dispenser 6 Reagents and materials 6.1 Internal standard (anhydrous) 6.2 Dilution solvent 6.3 Water 6.4 Molecular sieve 7 Sampling <\/td>\n<\/tr>\n | ||||||
10<\/td>\n | 8 Procedure 8.1 Gas-chromatographic conditions 8.2 Water content of the dilution solvent 8.3 Calibration 8.4 Sample preparation <\/td>\n<\/tr>\n | ||||||
11<\/td>\n | 8.5 Quantitative determination of water content <\/td>\n<\/tr>\n | ||||||
12<\/td>\n | 9 Expression of results 10 Precision 10.1 General 10.2 Repeatability limit, r 10.3 Reproducibility limit, R <\/td>\n<\/tr>\n | ||||||
13<\/td>\n | 11 Test report <\/td>\n<\/tr>\n | ||||||
14<\/td>\n | Annex A (informative) Example of gas-chromatographic conditions <\/td>\n<\/tr>\n | ||||||
15<\/td>\n | Annex B (informative) Information about precision <\/td>\n<\/tr>\n | ||||||
17<\/td>\n | Bibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" Paints and varnishes. Determination of water content. Gas-chromatographic method<\/b><\/p>\n |