ASTM E780测量室温时绝缘矿物,铠装金属热电偶和热电偶电缆绝缘电阻标准试验方法
日期:2012-02-08 11:05
for use in air, whose sheath or thermoelements are comprised of refractory metals, that are tested in a dry and chemically inert environment, and that may employ compacted ceramic insulating materials other than magnesia (MgO) or alumina (Al2O3). Users of this test method should note that specifications dealing with compacted ceramic insulating materials other than magnesia or alumina, which are described in Specification E1652, are not currently available. As a result, acceptance criteria must
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