GB/T 4699.3-2007 Active National standards

GB/T 4699.3-2007 Ferrochromium, silicochromium and nitrogen-bearing ferrochromium—Determination of phosphorus content—Molybdobismuthylphosphoric blue spectrophotometric method and the molybdenum blue spectrophotometric method

Publish Date: 2007-10-25 Implement Date: 2008-04-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: GB/T 4699.3-2007

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Analysis methods for steel and iron alloys

ICS Name: Iron alloy

Publish Date: 2007-10-25

Implement Date: 2008-04-01

Pages: 8 pages

Scope

This part of GB/T 4699 specifies the determination of phosphorus content by the bismuth phosphomolybdate spectrophotometry and molybdate spectrophotometry methods. This part is applicable to the determination of phosphorus content in chromium iron, vacuum micro-carbon chromium iron, nitrided chromium iron, and silicon-chromium alloys. The determination range (mass fraction) of bismuth phosphomolybdate spectrophotometry is 0.008%~0.080%; the determination range (mass fraction) of molybdate spectrophotometry is <0.15%.

Development Information

Word Count: 13 Thousand words Pages: 8 pages

Replace the following standards

GB/T 4699.3-1984 GB/T 5687.3-1985 Methods for chemical analysis of ferrochromium—The molybdenum blue photometric method for the determination of phosphorus content

Referenced Standards

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

Related Standards

GB/T 3654.10-1983 Replaced

GB/T 3654.10-1983 Methods for chemical analysis of ferroniobium The EDTA volumetric method for the determination of aluminum content

Publish Date: 1983-05-02

GB/T 3654.1-1983 Active

GB/T 3654.1-1983 Methods for chemical analysis of ferroniobium—The paper chromatograph-gravimetric method for the determination of niobium and tantalum

Publish Date: 1983-05-02

GB/T 3654.2-1983 Replaced

GB/T 3654.2-1983 Methods for chemical analysis of ferroniobium—The neocuproine-chloroform extraction photometric method for the determination of copper content

Publish Date: 1983-05-02

GB/T 3654.3-1983 Replaced

GB/T 3654.3-1983 Methods for chemical analysis of ferroniobium The gravimetric method for the determination of silicon content

Publish Date: 1983-05-02

GB/T 3654.4-1983 Active

GB/T 3654.4-1983 Methods for chemical analysis of ferroniobium The combustion gravimetric method for the determination of carbon content

Publish Date: 1983-05-02

GB/T 3654.5-1983 Active

GB/T 3654.5-1983 Methods for chemical analysis of ferroniobium The molybdenum blue photometric method for the determination of the phosphorus comtent

Publish Date: 1983-05-02