HB 5220.8-1995
Chemical Analysis Methods of Superalloys-N-Butanol-Chloroform Extraction-Absorptiometry for Determination of Phosphorus Content (English Version)

Standard No.

HB 5220.8-1995

Language

Chinese, Available in English version

Published By

Professional Standard - Aviation

Status

Be replaced 2008-10

Replace By

HB 5220.8-2008

Latest

HB 5220.8-2008

Replace

HB 5220.4(2)-82

Scope

This standard specifies the method summary, reagents, analysis steps, drawing of working curves, calculation of analysis results and allowable differences for the determination of phosphorus content in superalloys using n-butanol-chloroform extraction absorbance photometry. This standard is applicable to the determination of phosphorus content in high-temperature alloys.

HB 5220.8-1995 history

• 2008 HB 5220.8-2008 Methods for chemical analysis of superalloys.Part 8: Determination of phosphorus content by n-butyl alcohol-chloroform extraction photometric method
• 1970 HB 5220.8-1995 Chemical Analysis Methods of Superalloys-N-Butanol-Chloroform Extraction-Absorptiometry for Determination of Phosphorus Content
• 1970 HB 5220.8-1982 Determination of vanadium content in superalloy