BS EN 12671:2016 – TC:2020 Edition
$186.33
Tracked Changes. Chemicals used for treatment of water intended for human consumption. Chlorine dioxide generated in situ
| Published By | Publication Date | Number of Pages |
| BSI | 2020 | 60 |
This European Standard is applicable to chlorine dioxide generated on site for treatment of water intended for human consumption. It describes the characteristics for chlorine dioxide and specifies the composition and the corresponding test methods for chlorine dioxide. It gives information on its use in water treatment. It also determines the rules relating to safe handling and use of chlorine dioxide generated on site (see Annex B).
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 34 | Contents Page |
| 36 | European foreword |
| 37 | Introduction |
| 38 | 1 Scope 2 Normative references 3 Description 3.1 Identification 3.1.1 Chemical name 3.1.2 Synonym or common name 3.1.3 Relative molecular mass 3.1.4 Empirical formula 3.1.5 Chemical formula 3.1.6 CAS Registry Number 0F ) 3.1.7 EINECS reference 1F ) |
| 39 | 3.2 Presentation form 3.3 Physical properties 3.3.1 Appearance 3.3.2 Density 3.3.3 Solubility in water Table 1 — Solubility values 3.3.4 Vapour pressure |
| 40 | Table 2 — Vapour pressure of pure chlorine dioxide 3.3.5 Boiling point at 101,3 kPa 3F ) 3.3.6 Crystallization point 3.3.7 Specific heat 3.3.8 Viscosity (dynamic) 3.3.9 Critical temperature 3.3.10 Critical pressure 3.3.11 Physical hardness 3.3.12 Dissolution heat 3.4 Chemical properties |
| 41 | 4 Purity criteria 4.1 General 4.2 Composition of in situ generated product 4.3 Impurities and main by-products 4.4 Chemical parameters |
| 42 | 5 Test methods 5.1 Sampling 5.2 Determination of chlorine dioxide and chlorite concentrations 5.2.1 General 5.2.2 Principle 5.2.2.1 General |
| 43 | 5.2.2.2 With iodometry at pH 7,2 5.2.2.3 Subsequent iodometry at pH 2 5.2.2.4 Chlorite determination 5.2.3 Reagents |
| 44 | 5.2.4 Apparatus 5.2.5 Procedure |
| 45 | 5.2.6 Expression of results 5.2.6.1 Calculation 5.2.6.2 Precision 6 Labelling, distribution and storage 6.1 Labelling according to the EU legislation 4F ) Table 3 — Risk and safety labelling |
| 47 | 6.2 Means of distribution 6.3 Storage, stability |
| 48 | Annex A (informative) General information on chlorine dioxide A.1 Origin A.1.1 Raw materials A.1.2 Manufacturing process |
| 49 | A.2 Use A.2.1 Function A.2.2 Form in which it is used A.2.3 Treatment dose A.2.4 Means of application A.2.5 Secondary effects A.2.6 Removal of excess product A.3 Spectrometric method for specific determination of CIO2 A.3.1 Principle |
| 50 | A.3.2 Reagents A.3.3 Apparatus |
| 51 | A.3.4 Procedure A.3.4.1 Calibration A.3.4.2 Determination |
| 52 | A.3.5 Precision A.3.6 Specificity A.4 Determination of chlorite and chlorate ions contents in aqueous chlorine dioxide as produced by the reactors A.4.1 General A.4.2 Sample collection and preparation A.4.3 Principle A.4.4 Reagents |
| 53 | A.4.5 Apparatus A.4.6 Procedure |
| 54 | A.4.7 Expression of results A.4.8 Detection limit |
| 55 | Annex B (normative) General rules relating to safety B.1 Rules for safe handling and use B.2 Emergency procedures B.2.1 First aid B.2.2 Spillage B.2.3 Fire |
| 56 | Bibliography |
