GB/T 45012-2024 specifies the method for determining the linear thermal expansion coefficient of industrial thermal insulation products under low-temperature environments. This method is primarily applicable to the temperature range of -196°C to 25°C. By measuring the change in length of the specimen during the cooling process, its linear thermal expansion coefficient is calculated, which is crucial for evaluating the dimensional stability of thermal insulation materials under cryogenic or low-temperature operating conditions.
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 | Q 25 | ICS | 91.100.60 |
| Release Date | 2024-11-28 00:00:00 | Implementation Date | 2025-06-01 00:00:00 |