Historical
ASTM C1098-93
Standard Specification for Nuclear-Grade Hafnium Oxide Powder
This specification defines the physical and chemical requirements for hafnium oxide powder intended for fabrication into shapes for use in a nuclear reactor core. 1.2 The material described herein shall be particulate in nature. 1.3 The values stated in SI units are to be regarded as the standard.
ASTM International [astm]