EN 15484:2007

Foreword
1 Scope
2 Normative references
3 Principle
4 Reagents and materials
5 Apparatus
6 Samples and sampling
7 Calibration
   7.1 Preparation of the blank test solution
   7.2 Preparation of a 5,00 ml standard solution
   7.3 Titration
   7.4 Standardisation of 10,00 ml potassium chloride solution
   7.5 Calculation of concentration of silver nitrate solution
   7.6 Calculation of value of blank test
8 Sample analysis
   8.1 Preparation of the dry residue
   8.2 Preparation of the sample solution
   8.3 Titration
9 Calculation
10 Expression of results
11 Precision
   11.1 Repeatability, r
   11.2 Reproducibility, R
12 Test report
Annex A (informative) Measurement example
Annex B (informative) Interferences
      B.1 Introduction
      B.2 Other halogens
      B.3 Oxidizing agents
      B.4 Ammonium and iron (III) salts
      B.5 Cyanides, thiocyanates and sulphides
Bibliography

This standard specifies a potentiometric method for the determination of inorganic chloride content in ethanol from 4 mg/l to 30 mg/l. The chloride content is determined in aqueous solution after dissolution of the evaporation residue of the ethanol sample.WARNING — Use of this standard may involve hazardous materials, operations and equipment. This standard does not purport to address all of the safety problems associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and to determine the applicability of regulatory limitations prior to use.NOTEFor the purposes of this document, the terms “% (m/m)” and “% (V/V)” are used to represent respectively the mass fraction and the volume fraction.