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BS ISO 13756:2015 Jewellery. Determination of silver in silver jewellery alloys. Volumetric (potentiometric) method using sodium chloride or potassium chloride >
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BS ISO 13756:2015 Jewellery. Determination of silver in silver jewellery alloys. Volumetric (potentiometric) method using sodium chloride or potassium chloride, 2015
- Foreword
- Introduction
- 1 Scope
- 2 Normative references
- 3 Principle
- 4 Reagents
- 5 Apparatus
- 6 Sampling
- 7 Procedure
- 7.1 Determination of sodium chloride or potassium chloride standard solution factor
- 7.1.1 Preparation of silver standards
- 7.1.2 Titration of standard silver solution
- 7.1.3 Calculation of sodium chloride or potassium chloride standard solution factor
- 7.2 Determination
- 7.2.1 Preparation of the sample solution
- 7.2.2 Elimination of palladium
- 7.2.3 Titration of the sample solution
- 8 Calculation and expression of results
- 8.1 Calculation
- 8.2 Repeatability
- 9 Test report
- Bibliography [Go to Page]
