• 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

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