This standard describes in detail the test method for the breaking strength retention rate of polyimide fibers after high temperature treatment, ultraviolet light radiation and acid immersion. Applicable to polyimide fibers, Miscellaneous fibers can be used with reference. The standard cites relevant documents and defines the term breaking strength retention rate. The principle is to measure the change in the performance of the fibers according to the ratio of the breaking strength after treatment to the breaking strength before treatment. Instrumentation and equipment required for the test include Electronic Balance.
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 | (W50) 化学纤维综合 | ICS | (59.060.20) 人造纤维 |
| Release Date | 2019-11-11 00:00:00 | Implementation Date | 2020-04-01 00:00:00 |