GB/T 5832.3-2025 Active National standards

GB/T 5832.3-2025 Gas analysis—Determination of moisture in gases—Part 3:The method of cavity ring-down spectroscopy

GB/T 5832.3-2025 Gas analysis—Determination of moisture in gases—Part 3:The method of cavity ring-down spectroscopy

Publish Date: 2025-10-05 Implement Date: 2026-05-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: GB/T 5832.3-2025

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Industrial gases and chemical gases

ICS Name: Industrial gases

Publish Date: 2025-10-05

Implement Date: 2026-05-01

Pages: 12 pages

Scope

This document specifies the test method for determining trace moisture in gases using optical cavity ring-down spectroscopy, including the principles, test conditions, reagents and materials, instrumentation, sampling, test steps, test data processing, precision, quality assurance and control, and specific requirements for the test report.
This document is applicable to the determination of trace and ultra-trace moisture content in gases, with a measurement range of 1.0×10-9 (mole fraction) to 20×10-6 (mole fraction).
This document is not applicable to gases that can damage glass mirrors, such as hydrogen fluoride and fluorine gas; nor is it applicable to gases that interfere with the absorption spectrum of water, such as silane, methane, and germanane.

Development Information

Word Count: 15 Thousand words Pages: 12 pages

Replace the following standards

GB/T 5832.3-2011 Determination of moisture in gases—Part 3:The method of Cavity Ring-Down Spectroscopy

Referenced Standards

GB/T 4842-1995 Pure argon GB/T 4842-2006 Argon GB/T 4842-2017 Argon GB/T 4844-2011 Pure helium,high pure helium and ultra pure helium GB 4844.2-1995 Pure helium GB/T 4844.3-1995 High purity helium GB/T 5274.1-2018 Gas analysis—Preparation of calibration gas mixtures—Part 1:Gravimetric method for class Ⅰ mixtures GB/T 5275.6-2014 Gas analysis—Preparation of calibration gas mixtures using dynamic volumetric methods—Part 6:Gritical orifices GB/T 5275.6-2023 Gas analysis—Preparation of calibration gas mixtures using dynamic methods—Part 6:Critical flow orifices GB/T 5275.7-2014 Gas analysis—Preparation of calibration gas mixtures using dynamic volumetric methods—Part 7:Thermal mass-flow controllers GB/T 5275.7-2025 Gas analysis—Preparation of calibration gas mixtures using dynamic methods— Part 7:Thermal mass-flow controllers GB/T 5275.8-2014 Gas analysis—Preparation of calibration gas mixtures using dynamic volumetric methods—Part 8:Diffusion method GB/T 5275.10-2009 Gas analysis—Preparation of calibration gas mixtures using dynamic volumetric methods—Part 10:Permeation method GB/T 8979-1996 Pure nitrogen GB/T 8979-2008 Pure nitrogen and high purity nitrogen and ultra pure nitrogen GB/T 8979-2025 Pure nitrogen,high purity nitrogen and ultra pure nitrogen GB/T 14850-1993 Gas analysis—Vocabulary GB/T 14850-2008 Gas analysis—Vocabulary GB/T 14850-2020 Gas analysis—Vocabulary GB/T 43306-2023 Gas analysis—Sampling guidelines GB/T 4844-2025 Pure helium,high purity heliun and ultra purity helium

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