HB 5220.31-1995
Superalloy Chemical Analysis Method Cinchonine-Binaphthaquinoline Gravimetric Method for Determination of Tungsten Content (English Version)

Standard No.

HB 5220.31-1995

Language

Chinese, Available in English version

Release Date

1995

Published By

Professional Standard - Aviation

Status

Be replaced 2008-10

Replace By

HB 5220.31-2008

Latest

HB 5220.31-2008

Replace

HB 5220.16(1)-82

Scope

This standard specifies the method summary, reagents, analysis steps, calculation of analysis results and tolerances for the determination of tungsten content in superalloys using the cinchonine-bhenaquinoline gravimetric method. This standard is applicable to the determination of tungsten content in high-temperature alloys.

HB 5220.31-1995 history

• 2008 HB 5220.31-2008 Methods for chemical analysis of superalloys. Part 31: Determination of tungsten content by cinchonine-ethylnaphthalene quinoline gravimetric method
• 1995 HB 5220.31-1995 Superalloy Chemical Analysis Method Cinchonine-Binaphthaquinoline Gravimetric Method for Determination of Tungsten Content