GB/T 20975.5-2020
Methods for chemical analysis of aluminium and aluminium alloys—Part 5：Determination of silicon content (English Version)

Standard No.

GB/T 20975.5-2020

Language

Chinese, Available in English version

Release Date

2020

Published By

国家市场监督管理总局、中国国家标准化管理委员会

Latest

GB/T 20975.5-2020

Replace

GB/T 20975.5-2008

Scope

This part of GB/T 20975 specifies the determination of silicon content in aluminum and aluminum alloys by molybdenum blue spectrophotometry and gravimetric method. This part is applicable to the arbitration determination of silicon content in aluminum and aluminum alloys. The determination range of molybdenum blue spectrophotometry: 0.001 0% to 15.00%% The determination range of gravimetric method: 10.00% to 63.00%. Note: When the silicon mass fraction is between 10.00% and 15.00%%, the weight method is used as the arbitration method.

GB/T 20975.5-2020 Referenced Document

• GB/T 20975.5 Methods for chemical analysis of aluminium and aluminium alloys—Part 5：Determination of silicon content
• GB/T 8005.2 Terms of aluminium and aluminium alloys—Part 2:Chemical analysis
• GB/T 8170 Rules of rounding off for numerical values & expression and judgement of limiting values

GB/T 20975.5-2020 history

• 2020 GB/T 20975.5-2020 Methods for chemical analysis of aluminium and aluminium alloys—Part 5：Determination of silicon content
• 2008 GB/T 20975.5-2008 Methods for chemical analysis of aluminium and aluminium alloys .Part 5:Determination of silicon content
• 2001 GB/T 6987.6-2001 Aluminium and aluminium alloys--Determination of silicon content--Molybdenum blue spectrophotometric method

GB/T 20975.5-2020 -All Parts