T/CPCIF 0378-2024 Gas analysis, determination of trace moisture content, capacitance method

Scope

Scope: This document describes the method and principle of determining the water content in gases by capacitance method, and specifies the test conditions, instrumentation, test steps, test data processing, precision and measurement uncertainty, quality assurance and control, and requirements for test reports. This document is applicable to the determination of trace water content in hydrogen, oxygen, nitrogen, helium, neon, argon, krypton, xenon, methane, carbon monoxide, air gases, and their mixtures, but it is not applicable to gases that corrode aluminum or polymer capacitors, or gases that react with water. Main technical content: This document describes the method and principle of determining the water content in gases by capacitance method, and specifies the test conditions, instrumentation, test steps, test data processing, precision and measurement uncertainty, quality assurance and control, and requirements for test reports. This document is applicable to the determination of trace water content in hydrogen, oxygen, nitrogen, helium, neon, argon, krypton, xenon, methane, carbon monoxide, air gases, and their mixtures, but it is not applicable to gases that corrode aluminum or polymer capacitors, or gases that react with water.

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