GB/T 3211-2023 Metal chrome

GB/T 3211-2008 Metal chrome

GB/T 3650-1995 The general rules for inspection、 packing、storing transportation、marking and certification of ferroalloy GB/T 3650-2008 The general rules for inspection,packing,storing,transportation,marking and certification of ferroalloy GB/T 4010-1994 Ferroalloys—Sampling and preparation of samples for chemical analysis GB/T 4010-2015 Ferroallys sampling and preparation of samples for chemical analysis GB/T 4702.2-2008 Chromium metal—Determination of silicon content—The perchloric acid gravimetric method GB/T 4702.3-2016 Chromiun metal—The determination of phosphorus content—Bismuth phosphate molybdenum blue spectrophotometric method GB/T 4702.4-2008 Chromium metal—Determination of iron content—EDTA titrimetric method and flame atomic absorption spectrometric method GB/T 4702.5-2008 Chromium metal—Determination of aluminium content—EDTA titrimetric method and flame atomic absorption spectrometric method GB/T 4702.6-2016 Chromium metal—Determination of iron,aluminium,silicon and coppercontent—Inductively coupled plasma atomic emission spectrometry method GB/T 4702.7-2016 Chromium metal─Determination of nitrogen content─Distillation-nessler reagent spectrophotometric method GB/T 4702.8-1985 Methods for chemical analysis of chromium metal—The distillation-molybdenum blue spectrophotometric method for the determination of arsenic content GB/T 4702.9-1985 Methods for chemical analysis of chromium metal—The crystal violet spectrophotometric method for the determination of antimony content GB/T 4702.10-1985 Methods for chemical analysis of chromium metal—The cupral spectrophotometric method for the determination of copper content GB/T 4702.11-1985 Methods for chemical analysis of chromium metal—The alizarin violet spectrophotometric method for the determination of tin content GB/T 4702.14-1988 Methods for chemical analysis of chromium metal—The infrared absorption method for the determination of carbon content GB/T 4702.15-2016 Chromium metal—Determination of lead,tin,bismuth,antimony and arsenic content—Inductively coupled plasma mass spectrometric method GB/T 4702.16-1988 Methods for chemical analysis of chromium metal—The infrared absorption method for the determination of sulfur content GB/T 4702.16-2008 Chromium metal—Determination of sulfur content—Infrared absorption method and combustion-neutralization titration method GB/T 4702.17-1988 Methods for chemical analysis of chromium metal—The combustion-neutralization titration method for the determination of sulfur content GB/T 4702.17-2016 Chromium metal—Determination of oxygen, nitrogen and hydrogen content—Inert gas fusion thermal infrared detection method and conductivity method GB/T 8170-1987 Rules for rounding off of numberical values GB/T 8170-2008 Rules of rounding off for numerical values & expression and judgement of limiting values GB/T 13247-1991 Ferroalloys—Sampling and testing methods for determination of grain size GB/T 13247-2019 Methods for sampling and testing the grain size of ferroalloys products GB/T 14984-1994 Ferroalloys—Vocabulary GB/T 14984.1-2010 Ferroalloys—Vocabulary—Part 1:Materials GB/T 14984.2-2010 Ferroalloys—Vocabulary—Part 2:Sampling and sample preparation GB/T 14984.3-2010 Ferroalloys—Vocabulary—Part 3:Sieve analysis GB/T 4702.3-1984 Methods for chemical analysis of chromium metal--The molybdenum blue photometric method for the determinationof phosphorus content GB/T 4702.16-2025 Chromium metal—Determination of sulfur content—Infrared absorption method and combustion-neutralization titration method GB/T 4702.2-2025 Chromium metal—Determination of silicon content—Perchloric acid gravimetric method and molybdenum blue spectrophotometric method

ISO 10387:1994