GB/T 42426-2023 Active National standards

GB/T 42426-2023 Chemicals—Vapor pressure test

Publish Date: 2023-03-17 Implement Date: 2023-10-01 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 42426-2023

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Logo, packaging, transportation, storage

ICS Name: \nProtection against dangerous goods

Publish Date: 2023-03-17

Implement Date: 2023-10-01

Pages: 20 pages

Scope

This document describes the measurement methods for chemical vapor pressure tests using dynamic methods, static methods, liquid vapor pressure gauge methods, exudation methods - vapor pressure equilibrium, exudation methods - Nozzle tank, exudation methods - isothermal thermal weight, gas saturation methods, and rotary methods. This document is suitable for measuring the vapor pressure of solids and liquids in the range of 10-10 Pa to 105 Pa, and is used for samples that do not decompose under the specified measurement conditions. When the above conditions are not applicable, the vapor pressure estimation methods in Appendix A can be referred to. A comparison of vapor pressure test methods is shown in Table 1.