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

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Scope

This Part of GB/T 20975 specifies the method for the determination of
phosphorus in aluminum and aluminum alloys by molybdenum blue
spectrophotometry.
This Part applies to the determination of phosphorus content in aluminum and
aluminum alloys. The measurement range is: 0.0001% ~ 0.05%.

Basic Data

Standard ID	GB/T 20975.31-2019 (GB/T20975.31-2019)
Description (Translated English)	Methods for chemical analysis of aluminium and aluminium alloys - Part 31: Determination of phosphorus content - Molybdenum blue spectrophotometry
Sector / Industry	National Standard (Recommended)
Classification of Chinese Standard	H12
Classification of International Standard	77.120.10
Word Count Estimation	7,718
Date of Issue	2019-06-04
Date of Implementation	2020-05-01
Quoted Standard	GB/T 6682; GB/T 8170-2008
Issuing agency(ies)	State Administration for Market Regulation, China National Standardization Administration
Summary	This standard specifies the molybdenum blue spectrophotometric method for the determination of phosphorus content in aluminum and aluminum alloys. This standard applies to the determination of phosphorus content in aluminum and aluminum alloys. The measuring range is: 0.0001%~0.05%.