HB 5220.40-2008
Methods for chemical analysis of superalloys. Part 40: Determination of boron content by methanol distillation-curcumin photometric method (English Version)

Standard No.

HB 5220.40-2008

Language

Chinese, Available in English version

Release Date

2008

Published By

Professional Standard - Aviation

Latest

HB 5220.40-2008

Replace

HB 5220.40-1995

Scope

This part specifies the principles, reagents and materials, instruments, sample preparation, analysis steps, calculation of analysis results, tolerance and quality control and requirements for the determination of boron content in high-temperature alloys by methanol distillation-curcumin absorptiophotometry. This section applies to the determination of boron content in high-temperature alloys. Measuring range: 0.0005%~0.20%.

HB 5220.40-2008 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 5220.40-2008 history

• 2008 HB 5220.40-2008 Methods for chemical analysis of superalloys. Part 40: Determination of boron content by methanol distillation-curcumin photometric method
• 1970 HB 5220.40-1995 Method for Chemical Analysis of Superalloys Methanol Distillation-Curcumin Absorption Spectrophotometry for Determination of Boron Content