HB 20055.4-2011
Methods for analysis of chemical milling solutions for aluminum alloy.Part 4:Determination of triethanolamine content by ammonium vanadate spectrophotometric method (English Version)

Standard No.

HB 20055.4-2011

Language

Chinese, Available in English version

Release Date

2011

Published By

Professional Standard - Aviation

Latest

HB 20055.4-2011

Scope

This section specifies the principles, reagents, instruments, analysis steps and calculation of analysis results for the determination of triethanolamine [N(CHOH)] content in aluminum alloy chemical milling solutions using ammonium vanadate spectrophotometry. This section is applicable to the determination of triethanolamine content in aluminum alloy chemical milling solutions. Measuring range: 25g/L～70g/L.

HB 20055.4-2011 Referenced Document

• GB/T 7729 Chemical analysis of metallurgical products—General rule for spectrophotometric methods*， 2021-08-20 Update

HB 20055.4-2011 history

• 2011 HB 20055.4-2011 Methods for analysis of chemical milling solutions for aluminum alloy.Part 4:Determination of triethanolamine content by ammonium vanadate spectrophotometric method