EN 374 Part 4:2015
Determination of resistance to degradation
抗降解性的测定
The principle of this testing is to measure if there is a change in the force required to puncture the glove material after continuous contact of its external surface with a challenge chemical.
该测试的原理是测量在手套外表面与耐抗化学品持续接触之后，刺穿手套材料所需的力是否发生变化。
This puncture test is very similar to the procedure detailed in the performance standard to assess protection from mechanical risks detailed in EN 388:2016. The force required to push a standard stylus through a sample of the glove material is compared before and after exposureto the challenge chemical.
在EN 388：2016中详细规定了的评估机械风险防护的性能标准，该穿刺测试与其中的具体程序非常类似。需要比较手套与耐抗化学品接触前和接触后，用标准触针穿过手套材料样品分别所需的力。
For more information see the Spotlight article:
EN 374-4 degradation testing of gloves.
有关详细信息，请参阅Spotlight文章：
EN 374-4手套降解测试。
https://www.satra.com/spotlight/article.php?id=491
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