GB/T 21789-2025 specifies the method for the determination of the flash point of petroleum products and other liquids using an Abel closed-cup apparatus. This method involves heating the sample under specified conditions in a closed cup, periodically introducing a test flame into the vapor space, and observing the lowest temperature at which flash ignition occurs. It is used to assess the fire hazard of liquids during storage, transportation, and use.
This summary is not the original standard text and is for reference only. For accurate information, please obtain it through official channels.
| Status | Active | ||
|---|---|---|---|
| CCS | G00/09 | ICS | 71.100 |
| Release Date | 2025-10-05 00:00:00 | Implementation Date | 2026-02-01 00:00:00 |