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GB/T 7759.2-2014 Active
GB/T 7759.2-2014 Rubber,vulcanized or thermoplastic—Determination of compression set—Part 2:At low temperatures
Abstract
This part of GB/T 7759 specifies the test method for determining the compression permanent deformation performance of vulcanized rubber or thermoplastic rubber under low-temperature conditions.
This method is used to measure the ability of rubber with a hardness ranging from 10 IRHD to 95 IRHD to maintain its elasticity after continuous compression under specified temperature and compression ratio (usually 25%) conditions. When the rubber hardness is greater than 80 IRHD, a lower compression ratio should be selected: for 80 IRHD to 89 IRHD, the compression ratio is 15%; for 90 IRHD to 95 IRHD, the compression ratio is 10%.
General Product Information
| Document Type | National standards |
|---|---|
| Standard Status | Active |
| Standard Code | GB/T 7759.2-2014 |
| CCS | Rubber products and their auxiliary materials |
| ICS | Rubber |
| Implement Date | 2015-06-01 |
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