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 Noble Metal Thermocouples
NORMA vydána dne 1.10.2026
Označení normy: ASTM E1652-21(2026)
Datum vydání normy: 1.10.2026
Počet stran: 8
Přibližná hmotnost: 24 g (0.05 liber)
Země: Americká technická norma
Kategorie: Technické normy ASTM
This specification covers the requirements for magnesium oxide (MgO) and aluminum oxide (Al2O3) powders and crushable insulators used to manufacture metal-sheathed platinum resistance thermometers (PRTs), noble metal thermocouples, base metal thermocouples, and their respective cables. The following test shall be performed to meet the requirements specified: breaking force test; wet chemical analysis; fusion calorimetric analysis; quantitative analysis; and density determination.
Keywords:
aluminum oxide, crushable, insulator, magnesium oxide, mineral-insulated, metal-sheathed cable, platinum resistance thermometer, thermocouple, base metal, thermocouple, noble metal ,, ICS Number Code 17.200.20 (Temperature-measuring instruments),29.035.30 (Glass and ceramic insulating materials)