GB/T 20975.31-2019 Active National standards

GB/T 20975.31-2019 Methods for chemical analysis of aluminium and aluminium alloys—Part 31:Determination of phosphorus content—Molybdenum blue spectrophotometry

Publish Date: 2019-06-04 Implement Date: 2020-05-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: GB/T 20975.31-2019

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Analysis methods for light metals and their alloys

ICS Name: Aluminum and aluminum alloys

Publish Date: 2019-06-04

Implement Date: 2020-05-01

Publisher: 国家市场监督管理总局、中国国家标准化管理委员会

Technical Committee: 全国有色金属标准化技术委员会(SAC/TC 243)

Pages: 7 pages

Scope

GB/T 20975的本部分规定了钼蓝分光光度法测定铝及铝合金中磷含量的方法。
本部分适用于铝及铝合金中磷含量的测定。测定范围为：0.000 1%～0.05%。

Development Information

Drafting Units:

内蒙古霍煤鸿骏铝电有限责任公司、有色金属技术经济研究院、国标(北京)检验认证有限公司、中国铝业郑州有色金属研究院有限公司、东北轻合金有限责任公司、广东省工业分析检测中心

Drafting Persons:

李志辉、张燕、杨素丽、姜联玉、席欢、陈雄飞、张丽、张芳、石磊、张莹莹、卢成、周兵、张永进、张天姣、黄葡英

Word Count: 12 Thousand words Pages: 7 pages

Same series standard

GB/T 20975.28-2019 Methods for chemical analysis of aluminium and aluminium alloys—Part 28:Determination of cobalt content—Flame atomic absorption spectrometry GB/T 20975.29-2019 Methods for chemical analysis of aluminium and aluminium alloys—Part 29:Determination of molybdenum content—Thiocyanate spectrophotometry GB/T 20975.30-2019 Methods for chemical analysis of aluminium and aluminium alloys—Part 30:Determination of hydrogen content—Heating extraction-thermal conductivity method

Referenced Standards

GB/T 8170-2008 Rules of rounding off for numerical values & expression and judgement of limiting values 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

Related Standards

GB/T 3250-1982 Replaced

GB/T 3250-1982 Aluminium and aluminium alloys—Riveting test method for rivet wire

Publish Date: 1982-06-21

GB/T 3251-1982 Replaced

GB/T 3251-1982 Aluminium and aluminium alloys—Compression test method for tubes

Publish Date: 1982-06-21

GB/T 3252-1982 Replaced

GB/T 3252-1982 Aluminium and aluminium alloys Shear test method for rivet wire and rivets

Publish Date: 1982-06-21

GB/T 3172-1982 Abolished

GB/T 3172-1982 Determination of adhesion ratio of aluminium powder Steel plate method

Publish Date: 1982-08-19

GB/T 3173-1982 Abolished

GB/T 3173-1982 Determination of coating surface of aluminium powder on water

Publish Date: 1982-08-19

GB/T 4438-1984 Replaced

GB/T 4438-1984 Aluminium and aluminium alloy corrugated sheets

Publish Date: 1984-05-29