The method is applicable to different nickel contents. Cobalt, copper and manganese may cause interferences. Specifies principle, reagents, apparatus, sampling, procedure, expression of results and test report. Annex A gives additional information on the international co-operative tests, and Annex B represents the precision data graphically.
Số hiệu tiêu chuẩn
ISO 4939
Tên tiêu chuẩn
Steel and cast iron; Determination of nickel content; Dimethylglyoxime spectrophotometric method
Ngày phát hành
1984-12-00
Tiêu chuẩn tương đương
BS 6200-3.20.3 (1985-12-31), IDT * NF A06-308 (1985-10-01), IDT * JIS G 1216 (1997-04-20), MOD * PN-H-04018 (1992-03-30), MOD * NEN-ISO 4939:1996 en (1996-04-01), IDT
Từ khóa
Cast-iron * Chemical analysis and testing * Determination of content * Nickel * Spectrophotometry * Steels * Testing * Tests * Dimethyl glyoxime