GB/T 3654.10-1983
Replaced
GB/T 7731.4-2021
Active
National standards
GB/T 7731.4-2021 Ferrotungsten—Determination of phosphorus content—Phosphorus molybdenum blue spectrophotometric method
GB/T 7731.4-2021 Ferrotungsten—Determination of phosphorus content—Phosphorus molybdenum blue spectrophotometric method
Basic Information
Standard Code:
GB/T 7731.4-2021
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:
2021-08-20
Implement Date:
2022-03-01
Publisher:
国家市场监督管理总局、国家标准化管理委员会
Technical Committee:
全国生铁及铁合金标准化技术委员会(SAC/TC 318)
Pages:
8 pages
Scope
本文件规定了磷钼蓝分光光度法测定钨铁中的磷含量。
本文件适用于钨铁中磷含量的测定，测定范围（质量分数）：0.010%～0.080%。
Development Information
Drafting Units:
吉铁铁合金有限责任公司、江西省钨与稀土产品质量监督检验中心、赣州江钨钨合金有限公司、青岛博信达科技有限公司、河北津西国际贸易有限公司、冶金工业信息标准研究院
Drafting Persons:
聂淑兰、刘冰、郑海东、张晓红、王书亮、王芳、钟映兰、凌细平、李京霖、黎福萍、韩雪松、郭秀婷、张倩
Same series standard
GB/T 7731.1-2021 Ferrotungsten—Determination of tungsten content—Cinchonine gravimetric method and ammonium nitrate gravimetric method
GB/T 7731.5-2021 Ferrotungsten—Determination of silicon content—Silicomolybdenum blue spectrophotometric method
GB/T 7731.10-2021 Ferrotungsten—Determination of carbon content—Infrared absorption method
Replace the following standards
GB/T 7731.4-1987
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
GB/T 6682-1992 Water for analytical laboratory use—Specification and test methods
GB/T 6682-2008 Water for analytical laboratory use—Specification and test methods
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
Related Standards
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
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
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
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
GB/T 3654.5-1983
Active