{"id":423337,"date":"2024-10-20T06:45:57","date_gmt":"2024-10-20T06:45:57","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-iso-23697-22023\/"},"modified":"2024-10-26T12:41:40","modified_gmt":"2024-10-26T12:41:40","slug":"bs-iso-23697-22023","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-iso-23697-22023\/","title":{"rendered":"BS ISO 23697-2:2023"},"content":{"rendered":"
PDF Pages<\/th>\n | PDF Title<\/th>\n<\/tr>\n | ||||||
---|---|---|---|---|---|---|---|
2<\/td>\n | National foreword <\/td>\n<\/tr>\n | ||||||
6<\/td>\n | Foreword <\/td>\n<\/tr>\n | ||||||
7<\/td>\n | Introduction <\/td>\n<\/tr>\n | ||||||
9<\/td>\n | 1 Scope 2 Normative references 3 Terms and definitions <\/td>\n<\/tr>\n | ||||||
10<\/td>\n | 4 Principle 5 Interferences <\/td>\n<\/tr>\n | ||||||
11<\/td>\n | 6 Sampling and sample preparation 7 Reagents 8 Apparatus <\/td>\n<\/tr>\n | ||||||
12<\/td>\n | 8.1 Photometer or spectrophotometer for reading small-scale sealed tubes. 9 Oxidation and colour reactions principle 9.1 General 9.2 Chromotropic acid colour reaction <\/td>\n<\/tr>\n | ||||||
13<\/td>\n | 10 Quality control 10.1 \u200bVerification of the calibration 10.2 System and interferences checks 11 Calculation <\/td>\n<\/tr>\n | ||||||
14<\/td>\n | 12 Expression of results 13 Test report <\/td>\n<\/tr>\n | ||||||
15<\/td>\n | Annex A (informative) Performance data <\/td>\n<\/tr>\n | ||||||
16<\/td>\n | Bibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" Water quality. Determination of total bound nitrogen (ST-TNb) in water using small-scale sealed tubes – Chromotropic acid colour reaction<\/b><\/p>\n |