ДСТУ EN 900:2022 Химикаты для очищения воды, предназначенной для потребления человеком. Гипохлорит кальция (EN 900:2014, IDT)



ДСТУ EN 900:2022
(EN 900:2014, IDT)

Хімікати для очищення води, призначеної для
споживання людиною. Гіпохлорит кальцію

 
   
 
 
     
Не є офіційним виданням.
Офіційне видання розповсюджує національний орган стандартизації
(ДП «УкрНДНЦ» http://uas.gov.ua)

Contents

Foreword

Introduction

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

3.1.7 EINECS reference

3.2 Commercial form

3.3 Physical properties

3.3.1 Appearance

3.3.2 Density

3.3.3 Solubility in water

3.3.4 Vapour pressure

3.3.5 Boiling point at 100 kPa

3.3.6 Melting 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

3.4 Chemical properties

4 Purity criteria

4.1 General

4.2 Composition of commercial product

4.3 Impurities and main by-products

4.4 Chemical parameters

5 Test methods

5.1 Sampling

5.2 Analysis

5.2.1 Determination of calcium hypochlorite content (main product)

5.2.2 Dissolution quality (available chlorine after 1 min)

5.2.3 Impurities

5.2.4 Chemical parameters

6 Labelling - Transportation - Storage

6.1 Means of delivery

6.2 Labelling according to the EU legislation

6.3 Transportation regulations and labelling

6.4 Marking

6.5 Storage

6.5.1 General

6.5.2 Long term stability

6.5.3 Storage incompatibilities

Annex A (informative) General information on calcium hypochlorite

A.1 Origin

A.1.1 Raw materials

A.1.2 Manufacturing process

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

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

Annex C (normative) Determination of arsenic, antimony and selenium (atomic absorption spectrometry hydride technique)

C.1 General principle

C.2 Interferences

C.3 Reagents

C.4 Apparatus

C.4.1 General

C.5 Procedure

C.5.1 Preparation of the apparatus

C.5.2 Preparation of calibration solutions

C.5.3 Preparation of test solutions and standard solutions

C.5.4 Determination of arsenic with sodium borohydride

C.5.5 Determination of selenium with sodium borohydride

C.5.6 Determination of antimony with sodium borohydride

C.6 Calculation

C.7 Repeatability limit

Annex D (informative) Environmental, health and safety precautions within chemical laboratory

Bibliography