ASTM C 204

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• • ASTM C 204 is an international standard about standard test methods for fineness of hydraulic cement by air-permeability apparatus

• 1. Scope
• 2. Referenced documents
• – TEST METHOD A: REFRENCE METHOD
• 3. Apparatus
• 4. Calibration of apparatus
• 5. Procedure
• 6. Calculation
• 7. Report
• 8. Precesion and bias
• – TEST METHOD B: AUTOMATED APPARATUS
• 9. Apparatus
• 10. Calibration of apparatus
• 11. Procedure
• 12. Performance requiremet (Qualification) for the automated apparatus
• 13. Requalification of a method
• 14. Precision and bias