Chinese Standard: GB/T 4993-2010

Nickel-Chromium/Copper-Nickel(Constantan)thermocouple wires

全国仪表功能材料标准化技术委员会(SAC/TC 419)

本标准规定了镍铬-铜镍（康铜）热电偶丝的产品分类、技术要求、试验方法、检验规则、供应方式、包装及标志。
本标准适用于制造工业镍铬-铜镍（康铜）热电偶（E型热电偶）用合金丝(以下简称偶丝)。

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