ASTM D2132电绝缘材料的尘雾起痕和耐腐蚀性的标准试验方法
日期:2012-02-10 10:31
egories as they apply to specific uses will be specified in the appropriate material specifications, but guideline figures are suggested in Note 3. Tracking-resistant materials, unless erosion failure occurs first, can last many hundreds of hours (Note 4). Erosion, though it can progress laterally, generally results in a failure perpendicular to the specimen surface. Therefore, only specimens of the same nominal thickness can be compared for resistance to tracking-induced erosion. The extent of
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