{"id":293683,"date":"2024-10-19T19:57:27","date_gmt":"2024-10-19T19:57:27","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-iso-49422016\/"},"modified":"2024-10-25T17:09:07","modified_gmt":"2024-10-25T17:09:07","slug":"bs-iso-49422016","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-iso-49422016\/","title":{"rendered":"BS ISO 4942:2016"},"content":{"rendered":"
This document specifies an N-benzoylphenylhydroxylamine (N-BPHA) spectrophotometric method for the determination of vanadium in steels and cast irons.<\/p>\n
This document is applicable to vanadium contents between 0 ,005 % and 0,50 % (mass fraction).<\/p>\n
PDF Pages<\/th>\n | PDF Title<\/th>\n<\/tr>\n | ||||||
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6<\/td>\n | Foreword <\/td>\n<\/tr>\n | ||||||
7<\/td>\n | 1 Scope 2 Normative references 3 Terms and definitions 4 Principle 5 Reagents <\/td>\n<\/tr>\n | ||||||
9<\/td>\n | 6 Apparatus 7 Sampling 8 Procedure 8.1 Test portion 8.2 Blank test <\/td>\n<\/tr>\n | ||||||
10<\/td>\n | 8.3 Determination 8.3.1 Preparation of the test solution 8.3.2 Oxidation of vanadium 8.3.3 Colour development and extraction 8.3.4 Spectrophotometric measurements <\/td>\n<\/tr>\n | ||||||
11<\/td>\n | 8.4 Establishment of the calibration curve 8.4.1 Preparation of the calibration solutions 8.4.2 Spectrophotometric measurements 8.4.3 Plotting of the calibration curve 9 Expression of results 9.1 Method of calculation <\/td>\n<\/tr>\n | ||||||
12<\/td>\n | 9.2 Precision <\/td>\n<\/tr>\n | ||||||
13<\/td>\n | 10 Special cases 11 Test report <\/td>\n<\/tr>\n | ||||||
14<\/td>\n | Annex\u00a0A (informative) Additional information on the international interlaboratory test <\/td>\n<\/tr>\n | ||||||
15<\/td>\n | Annex\u00a0B (informative) Graphical representation of precision data <\/td>\n<\/tr>\n | ||||||
16<\/td>\n | Bibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" Steels and irons. Determination of vanadium content. N-BPHA spectrophotometric method<\/b><\/p>\n |