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铂对于测量温度具有独一无二的特性。铂的纯度很高,因此它显示出如下一系列优点:很好的可重复性,电特性稳定,耐化学性好,熔点高,比电阻亦较高,电阻与温度之间还存在简单易懂的数学关系。因此,在IPTS-68型仪器中铂便被用作温度范围在-259.34℃(氢的三相点)和+630.74℃(锑的凝固点)之间的内插式仪表的基板材料。大约25年以来这种铂电阻温度计还在工业上被看作是精确和可靠的测量
Platinum has unique properties for measuring temperature. Platinum purity is high, so it shows a series of advantages: good repeatability, stable electrical properties, good chemical resistance, high melting point, high specific resistance and easy to understand between resistance and temperature Mathematical relationship. Therefore, platinum is used as a substrate material for interpolated meters in the IPTS-68 range between -259.34 ° C (hydrogen triple point) and + 630.74 ° C (antimony solidification point). This platinum resistance thermometer has also been considered industrially as an accurate and reliable measurement for about 25 years