GB/T 40395-2021
Determination of ammonium in methanol for industrial use—Ion chromatography (English Version)

Standard No.

GB/T 40395-2021

Language

Chinese, Available in English version

Release Date

2021

Published By

国家市场监督管理总局、中国国家标准化管理委员会

Latest

GB/T 40395-2021

Scope

This document specifies a method for the determination of free and dissolved magnesium ions in methanol for industrial use by ion chromatography. This document is applicable to the determination of the free state and ion content in methanol for industrial use. When the injection volume is 50 AL, the lower limit of determination is 0.01 mg/L.

GB/T 40395-2021 Referenced Document

• GB/T 33087 Ultra pure water for instrumental analysis specification and test methods
• GB/T 34672 Chemical reagent—General rules for the ion chromatography
• GB/T 3723 Sampling of chemical products for industrial use--Safety in sampling
• GB/T 6680 General rules for sampling liquid chemical products
• GB/T 8170 Rules of rounding off for numerical values & expression and judgement of limiting values

GB/T 40395-2021 history

• 2021 GB/T 40395-2021 Determination of ammonium in methanol for industrial use—Ion chromatography