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BS ISO 11456:2025 Copper and zinc sulfide concentrates. Determination of silver content. Acid digestion and flame atomic absorption spectrometric or inductively coupled plasma optical emission spectrometric method >
BS ISO 11456:2025 Copper and zinc sulfide concentrates. Determination of silver content. Acid digestion and flame atomic absorption spectrometric or inductively coupled plasma optical emission spectrometric method, 2025
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- Foreword
- 1 Scope
- 2 Normative references
- 3 Terms and definitions
- 4 Principle
- 5 Reagents [Go to Page]
- 6 Apparatus
- 7 Instrument operating parameters [Go to Page]
- 8 Sample and sample preparation [Go to Page]
- 9 Procedure [Go to Page]
- 10 Calculations
- 11 Procedure for obtaining the final result
- 12 Test report
- 13 Precision and accuracy [Go to Page]
- Annex A (normative) Procedure for obtaining the final results
- Annex B (informative) Procedure for the preparation and determination of the mass of a predried test portion
- Annex C (informative) Precision experiment and trueness test
- Bibliography [Go to Page]