1 范围 1-1 本标准主要包括97％钨3％铼配75％钨25％铼、95％钨5％铼配74％钨26％铼热电偶的分度表(温度热电动势表)。这两类难熔金属热电偶广泛应用于工业测温。 1-2 本标准还包括1-1条所列热电偶型号的初始分度允差(表1)及其配用的补偿导线合金丝的初始分度允差(表2)。 1-3 这些数据适用于工业和实验室测温。 2 数据来源 1 Scope 1-1 This standard mainly includes 97% tungsten 3% rhenium with 75% tungsten 25% rhenium, 95% tungsten 5% rhenium with 74% tungsten 26% rhenium thermocouple index table (temperature thermodynamic table). These two types of refractory metal thermocouples are widely used in industrial temperature measurement. 1-2 This standard also includes the initial graduation tolerances for the thermocouple models listed in Table 1-1 (Table 1) and the initial graduation tolerances for the compensating wire alloyed wires (Table 2). 1-3 These data are suitable for industrial and laboratory temperature measurement. 2 data source