ASTM E1652-21
用于制造贱金属热电偶、金属护套铂电阻温度计和贵金属热电偶的氧化镁和氧化铝粉末及可压碎绝缘子的标准规范
Standard Specification for Magnesium Oxide and Aluminum Oxide Powder and Crushable Insulators Used in the Manufacture of Base Metal Thermocouples, Metal-Sheathed Platinum Resistance Thermometers, and