This standard specifies the scope of methods, apparatus, reagents, sampling and sample preparation, methods, result calculation and test report for determining chemical activity of caustic burned magnesia and active magnesia content.
This standard is applicable to determine the activity of caustic burned magnesia whose particle size is less than 0.045mm (passing through 320-mesh sieve) or less than 0.125mm (passing through 120-mesh sieve).
2 Normative References
The following documents contain provisions which, through reference in this standard, constitute provisions of this standard. For dated reference, subsequent amendments to (excluding any corrigendum), or revisions of, any of these publications do not apply. However, parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below. For undated references, the latest edition of the document referred to applies.
GB/T 8170 Rules for Rounding off of Numberical Values
GB/T 12573 Sampling Method of Cement
GB/T 12805 Laboratory Glassware C Burettes
GB/T 12806 Laboratory Glassware - One-mark Volumetric Flask
GB/T 12808 Laboratory Glassware - One-mark Pipettes
3 Reagents
Unless otherwise specified in analysis, only approved analytical reagents and distilled water or water with equivalent purity is applied.
