HB 5220.7-1995
Chemical Analysis Method of Superalloy Ether Extraction-Molybdenum Blue Absorption Spectrophotometry Determination of Phosphorus Content (English Version)

Standard No.

HB 5220.7-1995

Language

Chinese, Available in English version

Published By

Professional Standard - Aviation

Status

Be replaced 2008-10

Replace By

HB 5220.7-2008

Latest

HB 5220.7-2008

Replace

HB 5220.4(1)-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 ether extraction-molybdenum blue absorptiophotometry. This standard is applicable to the determination of phosphorus content in high-temperature alloys.

HB 5220.7-1995 history

• 2008 HB 5220.7-2008 Methods for chemical analysis of superalloys. Part 7: Determination of phosphorus content by ethyl ether extraction molybdenum blue photometric method
• 1970 HB 5220.7-1995 Chemical Analysis Method of Superalloy Ether Extraction-Molybdenum Blue Absorption Spectrophotometry Determination of Phosphorus Content
• 1970 HB 5220.7-1982 Determination of Chromium Content in Superalloys