HB 5220.39-1995
Chemical Analysis Method of Superalloys PMBP Direct Extraction-ArsenazoⅢ Absorbance Spectrophotometry Determination of Total Rare Earth (English Version)

Standard No.

HB 5220.39-1995

Language

Chinese, Available in English version

Published By

Professional Standard - Aviation

Status

Be replaced 2008-10

Replace By

HB 5220.39-2008

Latest

HB 5220.39-2008

Replace

HB 5220.21(1)-82

Scope

This standard specifies the method summary, reagents, analysis steps, working curve drawing, calculation of analysis results and allowable deviation for the determination of total rare earth content in superalloys using PMBP direct extraction-arsenazo III absorbance photometry. This standard is applicable to the determination of total rare earth content in high-temperature alloys.

HB 5220.39-1995 history

• 2008 HB 5220.39-2008 Methods for chemical analysis of superalloys. Part 39: Determination of total rare earth content by PMBP direct extraction-arsenazo Ⅲ photometric method
• 1970 HB 5220.39-1995 Chemical Analysis Method of Superalloys PMBP Direct Extraction-ArsenazoⅢ Absorbance Spectrophotometry Determination of Total Rare Earth