Test method of physiical characters of rare earth metals and compounds. Determination on specific surface area of rare earth compounds
Standard Number | GB/T 20170.2-2006 |
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Organization |
Standardization Administration of China
|
Level | National |
Category | Test Method | Characterization | Measurement |
Status |
|
ABSTRACT
This standard specifies the determination of the specific surface area of rare earth compounds. This standard applies to the determination of the specific surface area of rare earth compounds. This standard measure of the total surface area of ??the powder surface, including the nitrogen molecules can enter any opening surface of the powder body.