GB 4962-1985
Replaced
GB/T 38521-2025
Active
National standards
GB/T 38521-2025 Gas analysis—Purity analysis and the treatment of purity data
GB/T 38521-2025 Gas analysis—Purity analysis and the treatment of purity data
Price:
$ 50.00
Basic Information
Standard Code:
GB/T 38521-2025
Standard Type:
National standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
Industrial gases and chemical gases
ICS Name:
Industrial gases
Publish Date:
2025-08-29
Implement Date:
2026-03-01
Pages:
24 pages
Scope
This document specifies the requirements for the analysis of the purity of the raw materials used in the preparation of calibration gas mixtures, and describes the methods of obtaining and using purity data in the calculation of the composition of the prepared gas mixtures.
Development Information
Replace the following standards
Referenced Standards
ISO 6141
ISO 6143
ISO 7504
ISO 12963
ISO 14912
ISO/IEC Guide 98-3
Adopt standards
ISO 19229:2019
Related Standards
GB/T 8981-1988
Replaced
GB/T 8981-1988 Determination of trace hydrogen in gases—Gas chromatographic method
GB/T 10627-1989
Replaced
GB/T 10627-1989 Gas analysis—Preparation of calibration gas mixtures—Static volumetric methods
GB/T 10628-1989
Replaced
GB/T 10628-1989 Gas analysis—Determination of composition of calibration gas mixtures—Comparison methods
GB 13548-1992
Replaced
GB 13548-1992 General principle of safety assessment for phosgene and its products plant
GB 13591-1992
Replaced