{"id":294175,"date":"2024-10-19T19:59:51","date_gmt":"2024-10-19T19:59:51","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-en-iso-4392020\/"},"modified":"2024-10-25T17:12:54","modified_gmt":"2024-10-25T17:12:54","slug":"bs-en-iso-4392020","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-en-iso-4392020\/","title":{"rendered":"BS EN ISO 439:2020"},"content":{"rendered":"
This document specifies a gravimetric method for the determination of the silicon content in steel and cast iron.<\/p>\n
The method is applicable to silicon contents between 0,10 % (mass fraction) and 5,0 % {mass fraction).<\/p>\n
For samples containing molybdenum, niobium, tantalum, titanium, tungsten, zirconium or high levels of chromium, the results are less accurate than for unalloyed matrixes. <\/p>\n<\/div>\n
PDF Pages<\/th>\n | PDF Title<\/th>\n<\/tr>\n | ||||||
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2<\/td>\n | National foreword <\/td>\n<\/tr>\n | ||||||
4<\/td>\n | European 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 5 Reagents <\/td>\n<\/tr>\n | ||||||
8<\/td>\n | 6 Apparatus 7 Sampling 8 Procedure 8.1 Test portion <\/td>\n<\/tr>\n | ||||||
9<\/td>\n | 8.2 Blank test 8.3 Determination 8.3.1 Acid dissolution of the test portion and formation of hydrated silicon dioxide 8.3.2 Filtration and washing <\/td>\n<\/tr>\n | ||||||
10<\/td>\n | 8.3.3 Recovery of silicon compounds in the filtrate 8.3.4 Ignition, volatilization of silicon dioxide and weighing 9 Expression of results 9.1 Method of calculation <\/td>\n<\/tr>\n | ||||||
11<\/td>\n | 9.2 Precision 10 Test report <\/td>\n<\/tr>\n | ||||||
12<\/td>\n | Annex A (informative) Additional information on the international interlaboratory test <\/td>\n<\/tr>\n | ||||||
15<\/td>\n | Annex B (informative) Graphical representation of precision data <\/td>\n<\/tr>\n | ||||||
16<\/td>\n | Bibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" Steel and cast iron. Determination of silicon content. Gravimetric method<\/b><\/p>\n |