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 (English Version)

Standard No.

HB 5220.39-2008

Language

Chinese, Available in English version

Release Date

2008

Published By

Professional Standard - Aviation

Latest

HB 5220.39-2008

Replace

HB 5220.39-1995

Scope

This part specifies the principles, reagents and materials, instruments, sample preparation, analysis steps, calculation of analysis results, tolerance and quality control and Require. This section applies to the determination of the total amount of rare earths in high-temperature alloys. Measuring range: 0.002% ~ 0.05%.

HB 5220.39-2008 Referenced Document

• GB/T 7729 Chemical analysis of metallurgical products—General rule for spectrophotometric methods*， 2021-08-20 Update
• HB 5421 General rules and general regulations for chemical composition analysis methods of metallic materials
• HB/Z 205 Specification for sampling of specimens for chemical analysis of steels and superalloys

HB 5220.39-2008 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