GB/T 38521-2020Gas analysis - Purity analysis and the treatment of purity data (English PDF)
气体分析 纯度分析和纯度数据的处理
GB/T 38521 | Evolution and historical versions
| Std ID | Title | Status |
|---|---|---|
| GB/T 38521-2025 | Gas analysis—Purity analysis and the treatment of purity data | Valid |
| GB/T 38521-2020 | Gas analysis - Purity analysis and the treatment of purity data | Obsolete |
GB/T 38521-2020 is obsolete. It has been replaced by GB/T 38521-2025. This page sells the obsolete edition, for projects and contracts that still cite it.
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Issued by
State Administration for Market Regulation; Standardization Administration of China
Level / Type
National · Recommended
Issue date
March 6, 2020
Implementation date
February 1, 2021
Scope
GB/T 38521-2020 is the English-translated version of 气体分析 纯度分析和纯度数据的处理.
GB/T 38521-2020 is the Chinese national standard "Gas analysis - Purity analysis and the treatment of purity data". It was issued on March 6, 2020 by the State Administration for Market Regulation and the Standardization Administration of China, and took effect on February 1, 2021. It is obsolete: it has been replaced by GB/T 38521-2025.
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Document preview — GB/T 38521-2020
National Standard of the People's Republic of China
Issued by: State Administration for Market Regulation; Standardization Administration of China
Contents
- Document data
1 Document data
Sector: National standard (Recommended).
Issuing body: State Administration for Market Regulation; Standardization Administration of China.
Date of issue: 2020-03-06.
Date of implementation: 2021-02-01.
Status: obsolete, replaced by GB/T 38521-2025.
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — all pages — is available in the English PDF.
Referenced standards
Cited by
- GB/T 5275.7-2025Gas analysis - Preparation of calibration gas mixtures using dynamic methods - Part 7: Thermal mass-flow controllers
- GB/T 5275.1-2024Gas analysis - Preparation of calibration gas mixtures using dynamic methods - Part 1: General aspects
- GB/T 38527-2020Technologic rules for calibration gas mixtures
- GB/T 5275-2005Gas analysis - Preparation of calibration gas mixtures using dynamic methods - Part 1: General aspects
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