HB 5422.4-1989
Copper alloy chemical analysis method Hexamethylenetetramine hydrolysis precipitation separation-chrome azure S absorptiometry for determination of aluminum content (English Version)

Standard No.

HB 5422.4-1989

Language

Chinese, Available in English version

Release Date

1989

Published By

Professional Standard - Aviation

Latest

HB 5422.4-1989

Scope

This standard specifies the method principle, reagents, analysis steps and tolerances for the determination of aluminum content in copper alloys using hexamethylenetetramine hydrolysis precipitation separation-chromium azure S absorbance photometry. This standard applies to the determination of aluminum content in beryllium bronze. Measuring range: 0.020% ~ 0.25%.

HB 5422.4-1989 history

• 1989 HB 5422.4-1989 Copper alloy chemical analysis method Hexamethylenetetramine hydrolysis precipitation separation-chrome azure S absorptiometry for determination of aluminum content