GB/T 4702.2-2008 Replaced National standards

GB/T 4702.2-2008 Chromium metal—Determination of silicon content—The perchloric acid gravimetric method

Publish Date: 2008-05-13 Implement Date: 2008-11-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: GB/T 4702.2-2008

Standard Type: National standards

Standard Status: Replaced

is_force_gb: no

CCS Name: Analysis methods for steel and iron alloys

ICS Name: Iron alloy

Publish Date: 2008-05-13

Implement Date: 2008-11-01

Pages: 8 pages

Scope

This section specifies the determination of silicon content in metallic chromium by the weight method using perchloric acid. This section is applicable to the determination of silicon content in metallic chromium. The measurement range (mass fraction): 0.10% to 0.50%.

Development Information

Word Count: 5 Thousand words Pages: 8 pages

Same series standard

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 4702.16-2008 Chromium metal—Determination of sulfur content—Infrared absorption method and combustion-neutralization titration method

Replace the following standards

GB/T 4702.2-1984

Superseded by the following standards

GB/T 4702.2-2025 Chromium metal—Determination of silicon content—Perchloric acid gravimetric method and molybdenum blue spectrophotometric method

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