HB 5422.9-1989
Copper alloy chemical analysis method 1.10—O-phenanthroline absorptiometry for determination of iron content (English Version)

Standard No.

HB 5422.9-1989

Language

Chinese, Available in English version

Release Date

1989

Published By

Professional Standard - Aviation

Latest

HB 5422.9-1989

Scope

This standard specifies the method principle, reagents, instruments, analysis steps, working curve drawing, calculation of analysis results and allowable differences for the determination of iron content in copper alloys using the 1.10-phenanthroline absorbance photometry method. This standard applies to the determination of iron content in brass, tin bronze and beryllium bronze. Measuring range: 0.02% ~ 0.50%

HB 5422.9-1989 history

• 1989 HB 5422.9-1989 Copper alloy chemical analysis method 1.10—O-phenanthroline absorptiometry for determination of iron content