ASTM D2900-1990(1997)E1 用于铠装式电加热元件的电气级氧化镁的加速寿命试验的方法
ASTM D2900-1990(1997)E1 标准详情
- 标准号:ASTM D2900-1990(1997)E1
- 中文标题:用于铠装式电加热元件的电气级氧化镁的加速寿命试验的方法
- 英文标题:standard test method for accelerated life test of electrical grade magnesium oxide as used in sheathed-type electric heating elements withdrawn 2003
- 标准类别:美国材料与试验协会ASTM
- 发布日期:1990
内容简介
1.1 This test method covers the accelerated life testing of electrical grade magnesium oxide (MgO) under conditions involving thermal cycling to an elevated temperature. The test determines both the rate at which electrical insulation impedance (Note
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