HB 5422.7-1989
Method for chemical analysis of copper alloy Potassium iodide-thiourea absorbance photometry for determination of bismuth content (English Version)

Standard No.

HB 5422.7-1989

Language

Chinese, Available in English version

Release Date

1989

Published By

Professional Standard - Aviation

Latest

HB 5422.7-1989

Scope

This standard specifies the method principle, reagents, analysis steps, calculation of analysis results and allowable differences for the determination of bismuth content in copper alloys using the potassium iodide-thiourea absorptive light method. This standard is applicable to the determination of bismuth content in brass (tin-containing brass and lead brass) and tin bronze. Measuring range: 0.001% ~ 0.005%.

HB 5422.7-1989 history

• 1989 HB 5422.7-1989 Method for chemical analysis of copper alloy Potassium iodide-thiourea absorbance photometry for determination of bismuth content