Chemicals used for treatment of water intended for human consumption - Hydrogen peroxide

This European Standard is applicable only to hydrogen peroxide and not to mixtures with other chemicals used for treatment of water intended for human consumption. It describes the characteristics of hydrogen peroxide and specifies the requirements and the corresponding test methods for hydrogen peroxide. It gives information on its use in water treatment. It also determines the rules relating to safe handling and use (see Annex B).

Produkte zur Aufbereitung von Wasser für den menschlichen Gebrauch - Wasserstoffperoxid

Diese Europäische Norm gilt ausschließlich für Wasserstoffperoxid, nicht jedoch für Mischungen mit anderen Chemikalien, zur Aufbereitung von Wasser für den menschlichen Gebrauch. Es beschreibt die Eigenschaften von Wasserstoffperoxid und legt die Anforderungen sowie die entsprechenden Prüfverfahren für Wasserstoffperoxid fest. Es enthält Angaben für dessen Anwendung in der Wasseraufbereitung. Es legt darüber hinaus Regeln für die sichere Handhabung und Verwendung fest (siehe Anhang B).

Produits chimiques utilisés pour le traitement de l'eau destinée à la consommation humaine - Peroxyde d'hydrogène

Le présent document s’applique uniquement au peroxyde d’hydrogène et ne s’applique pas aux mélanges avec d’autres substances chimiques utilisées pour le traitement de l’eau destinée à la consommation humaine. Il décrit les caractéristiques du peroxyde d’hydrogène et spécifie les exigences et les méthodes d’essai correspondantes. Il donne des informations sur son emploi pour le traitement de l’eau. Il définit également les règles relatives aux précautions d’emploi et de manipulation (voir l’Annexe B).

Kemikalije, ki se uporabljajo za pripravo pitne vode - Vodikov peroksid

Ta dokument se uporablja le za vodikov peroksid, in ne za mešanice z drugimi kemikalijami, ki se uporabljajo za pripravo pitne vode. Opisuje lastnosti vodikovega peroksida ter določa zahteve in ustrezne preskusne metode zanj. Podaja informacije za njegovo uporabo pri pripravi vode. Določa tudi pravila za varno ravnanje in uporabo.

General Information

Status
Published
Publication Date
24-May-2016
Current Stage
9020 - Submission to 2 Year Review Enquiry - Review Enquiry
Due Date
15-Jul-2021
Completion Date
15-Jul-2021

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SLOVENSKI STANDARD
SIST EN 902:2016
01-julij-2016
1DGRPHãþD
SIST EN 902:2009
Kemikalije, ki se uporabljajo za pripravo pitne vode - Vodikov peroksid
Chemicals used for treatment of water intended for human consumption - Hydrogen
peroxide
Produkte zur Aufbereitung von Wasser für den menschlichen Gebrauch -
Wasserstoffperoxid

Produits chimiques utilisés pour le traitement de l'eau destinée à la consommation

humaine - Peroxyde d'hydrogène
Ta slovenski standard je istoveten z: EN 902:2016
ICS:
13.060.20 Pitna voda Drinking water
71.100.80 .HPLNDOLMH]DþLãþHQMHYRGH Chemicals for purification of
water
SIST EN 902:2016 en,fr,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 902:2016
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SIST EN 902:2016
EN 902
EUROPEAN STANDARD
NORME EUROPÉENNE
May 2016
EUROPÄISCHE NORM
ICS 71.100.80 Supersedes EN 902:2009
English Version
Chemicals used for treatment of water intended for human
consumption - Hydrogen peroxide

Produits chimiques utilisés pour le traitement de l'eau Produkte zur Aufbereitung von Wasser für den

destinée à la consommation humaine - Peroxyde menschlichen Gebrauch - Wasserstoffperoxid

d'hydrogène
This European Standard was approved by CEN on 18 March 2016.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this

European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references

concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN

member.

This European Standard exists in three official versions (English, French, German). A version in any other language made by

translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management

Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,

Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,

Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and

United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels

© 2016 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 902:2016 E

worldwide for CEN national Members.
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SIST EN 902:2016
EN 902:2016 (E)
Contents Page

European foreword ....................................................................................................................................................... 4

Introduction .................................................................................................................................................................... 5

1 Scope .................................................................................................................................................................... 6

2 Normative references .................................................................................................................................... 6

3 Description ........................................................................................................................................................ 6

3.1 Identification .................................................................................................................................................... 6

3.1.1 Chemical name ................................................................................................................................................. 6

3.1.2 Synonym or common name ......................................................................................................................... 6

3.1.3 Relative molecular mass ............................................................................................................................... 6

3.1.4 Empirical formula ........................................................................................................................................... 6

3.1.5 Chemical formula ............................................................................................................................................ 6

3.1.6 CAS Registry Number ..................................................................................................................................... 6

3.1.7 EINECS reference ............................................................................................................................................. 7

3.2 Commercial form ............................................................................................................................................. 7

3.3 Physical properties ......................................................................................................................................... 7

3.3.1 Appearance and odour .................................................................................................................................. 7

3.3.2 Density ................................................................................................................................................................ 7

3.3.3 Solubility in water ........................................................................................................................................... 7

3.3.4 Vapour pressure .............................................................................................................................................. 7

3.3.5 Boiling point at 100 kPa ............................................................................................................................... 7

3.3.6 Crystallization point ....................................................................................................................................... 8

3.3.7 Specific heat ...................................................................................................................................................... 8

3.3.8 Viscosity, dynamic .......................................................................................................................................... 8

3.3.9 Critical temperature ...................................................................................................................................... 9

3.3.10 Critical pressure .............................................................................................................................................. 9

3.3.11 Physical hardness ........................................................................................................................................... 9

3.4 Chemical properties ....................................................................................................................................... 9

4 Purity criteria ................................................................................................................................................... 9

4.1 General ................................................................................................................................................................ 9

4.2 Composition of commercial product ..................................................................................................... 10

4.3 Impurities and main by-products .......................................................................................................... 10

4.4 Chemical parameters .................................................................................................................................. 10

5 Test methods ................................................................................................................................................. 10

5.1 Sampling .......................................................................................................................................................... 10

5.2 Analysis ............................................................................................................................................................ 10

5.2.1 Determination of hydrogen peroxide content (main product) ................................................... 10

5.2.2 Chemical parameters .................................................................................................................................. 13

6 Labelling - Transportation - Storage ..................................................................................................... 15

6.1 Means of delivery ......................................................................................................................................... 15

6.2 Labelling according to the EU Legislation ........................................................................................... 15

6.3 Transportation regulations and labelling ........................................................................................... 19

6.4 Marking ............................................................................................................................................................ 19

6.5 Storage ............................................................................................................................................................. 19

6.5.1 Containers ....................................................................................................................................................... 19

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SIST EN 902:2016
EN 902:2016 (E)

6.5.2 Long term stability ....................................................................................................................................... 19

6.5.3 Storage incompatibilities ........................................................................................................................... 20

Annex A (informative) General information on hydrogen peroxide ...................................................... 21

A.1 Origin ................................................................................................................................................................ 21

A.1.1 Raw materials ................................................................................................................................................ 21

A.1.2 Manufacturing process ............................................................................................................................... 21

A.2 Use ...................................................................................................................................................................... 21

A.2.1 Function ........................................................................................................................................................... 21

A.2.2 Form in which it is used.............................................................................................................................. 21

A.2.3 Treatment dose ............................................................................................................................................. 21

A.2.4 Means of application .................................................................................................................................... 21

A.2.5 Secondary effects .......................................................................................................................................... 21

A.2.6 Removal of excess product ........................................................................................................................ 21

A.3 Routine analyses ........................................................................................................................................... 22

A.3.1 Determination of chemical parameters ............................................................................................... 22

Annex B (normative) General rules relating to safety .................................................................................. 23

B.1 Rules for safe handling and use ............................................................................................................... 23

B.2 Emergency procedures ............................................................................................................................... 23

B.2.1 First aid ............................................................................................................................................................ 23

B.2.2 Spillage ............................................................................................................................................................. 23

B.2.3 Fire ..................................................................................................................................................................... 23

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

spectrometry hydride technique) .......................................................................................................... 24

C.1 Safety precautions ........................................................................................................................................ 24

C.2 General principle .......................................................................................................................................... 24

C.3 Interferences .................................................................................................................................................. 24

C.4 Reagents ........................................................................................................................................................... 24

C.5 Apparatus ........................................................................................................................................................ 26

C.6 Procedure ........................................................................................................................................................ 28

C.6.1 Preparation of the apparatus ................................................................................................................... 28

C.6.2 Preparation of calibration solutions ..................................................................................................... 29

C.6.3 Preparation of test solutions and standard solutions ..................................................................... 29

C.6.4 Determination of arsenic with sodium borohydride ....................................................................... 29

C.6.5 Determination of selenium with sodium borohydride ................................................................... 29

C.6.6 Determination of antimony with sodium borohydride .................................................................. 30

C.7 Calculation....................................................................................................................................................... 30

Bibliography ................................................................................................................................................................. 31

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SIST EN 902:2016
EN 902:2016 (E)
European foreword

This document (EN 902:2016) has been prepared by Technical Committee CEN/TC 164 “Water supply”,

the secretariat of which is held by AFNOR.

This European Standard shall be given the status of a national standard, either by publication of an

identical text or by endorsement, at the latest by November 2016, and conflicting national standards

shall be withdrawn at the latest by November 2016.

Attention is drawn to the possibility that some of the elements of this document may be the subject of

patent rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent

rights.
This document supersedes EN 902:2009.

Significant technical differences between this edition and EN 902:2009 are as follows:

a) deletion of the reference to EU Directive 67/548/EEC of June 27,1967 in order to take into account

the latest Directive in force (see [1]);
b) use of the changed classification and labelling (see [3]).

According to the CEN/CENELEC Internal Regulations, the national standards organizations of the

following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,

Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia,

France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta,

Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland,

Turkey and the United Kingdom.
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SIST EN 902:2016
EN 902:2016 (E)
Introduction

In respect of potential adverse effects on the quality of water intended for human consumption, caused

by the product covered by this European Standard:

1) this European Standard provides no information as to whether the product may be used without

restriction in any of the Member States of the EU or EFTA;

2) it should be noted that, while awaiting the adoption of verifiable European criteria, existing

national regulations concerning the use and/or the characteristics of this product remain in force.

NOTE 1 Conformity with this standard does not confer or imply acceptance or approval of the product in any of

the Member States of the EU or EFTA. The use of the product covered by this European Standard is subject to

regulation or control by National Authorities.

NOTE 2 This product is a biocide and needs to comply with the relevant legislation in force. In the European

Union, at the time of publication, this legislation is REGULATION (EU) No 528/2012 [1].

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SIST EN 902:2016
EN 902:2016 (E)
1 Scope

This European Standard is applicable only to hydrogen peroxide and not to mixtures with other

chemicals used for treatment of water intended for human consumption. It describes the characteristics

of hydrogen peroxide and specifies the requirements and the corresponding test methods for hydrogen

peroxide. It gives information on its use in water treatment. It also determines the rules relating to safe

handling and use (see Annex B).
2 Normative references

The following documents, in whole or in part, are normatively referenced in this document and are

indispensable for its application. For dated references, only the edition cited applies. For undated

references, the latest edition of the referenced document (including any amendments) applies.

EN ISO 3696, Water for analytical laboratory use — Specification and test methods (ISO 3696)

EN ISO 12846, Water quality — Determination of mercury — Method using atomic absorption

spectrometry (AAS) with and without enrichment (ISO 12846)
ISO 3165, Sampling of chemical products for industrial use — Safety in sampling
ISO 6206, Chemical products for industrial use — Sampling — Vocabulary

ISO 8288, Water quality — Determination of cobalt, nickel, copper, zinc, cadmium and lead — Flame

atomic absorption spectrometric methods

ISO 9174, Water quality — Determination of chromium — Atomic absorption spectrometric methods

3 Description
3.1 Identification
3.1.1 Chemical name
Hydrogen peroxide.
3.1.2 Synonym or common name
None.
3.1.3 Relative molecular mass
34,02.
3.1.4 Empirical formula
H O .
2 2
3.1.5 Chemical formula
H-O-O-H.
3.1.6 CAS Registry Number
7722-84-1.
1) Chemical Abstracts Service Registry Number.
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SIST EN 902:2016
EN 902:2016 (E)
3.1.7 EINECS reference
231-765-0.
3.2 Commercial form
The product is supplied as an aqueous solution.
3.3 Physical properties
3.3.1 Appearance and odour
The product is colourless liquid, slightly pungent odour.
3.3.2 Density
The density of hydrogen peroxide is given in Table 1.
Table 1 — Density
Solution concentration Density
Mass fraction in% g/ml at 20 °C
20 1,075
30 1,114
35 1,132
50 1,195
60 1,241
70 1,289
3.3.3 Solubility in water
The product is miscible with water in all proportions.
3.3.4 Vapour pressure

The vapour pressure of hydrogen peroxide depending on concentration is given in Table 2.

Table 2 — Vapour pressure
Solution concentration Vapour pressure
Mass fraction in % kPa at 20 °C
20 2,0
30 1,8
35 1,7
50 1,3
60 1,1
70 0,8
3.3.5 Boiling point at 100 kPa

The boiling point of hydrogen peroxide depending on concentration is given in Table 3.

2) European Inventory of Existing Commercial Chemical Substances.
3) 100 kPa = 1 bar.
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SIST EN 902:2016
EN 902:2016 (E)
Table 3 — Boiling point
Solution concentration Boiling point
Mass fraction in % °C at 100 kPa
20 103
30 106
35 108
50 114
60 119
70 125
3.3.6 Crystallization point

The crystallization point of hydrogen peroxide depending on concentration is given in Table 4.

Table 4 — Crystallization point
Solution concentration Crystallization point
Mass fraction in % °C
20 – 14,6
30 – 25,7
35 – 32,5
50 – 51
60 – 55
70 – 37
3.3.7 Specific heat

The specific heat of hydrogen peroxide depending on concentration is given in Table 5.

Table 5 — Specific heat
Solution concentration Specific heat
Mass fraction in % kJ/(kg.K)
20 3,82 at 20 °C
50 3,32 at 20 °C
100 2,63 at 25 °C
3.3.8 Viscosity, dynamic

The viscosity of hydrogen peroxide depending on concentration is given in Table 6.

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SIST EN 902:2016
EN 902:2016 (E)
Table 6 — Viscosity
Solution concentration Viscosity
Mass fraction in % MPa.s at 20 °C
20 1,04
30 1,07
35 1,10
50 1,17
60 1,20
70 1,24
100 1,25
3.3.9 Critical temperature
The critical temperature of pure hydrogen peroxide is 457 °C.
3.3.10 Critical pressure
The critical pressure of pure hydrogen peroxide is 21,7 mPa.
3.3.11 Physical hardness
Not applicable.
3.4 Chemical properties
Hydrogen peroxide is a weak acid.

According to species in solution, it is an oxidizing agent (E° = 1,776 V) or a reducing agent

(E ° = 0,682 V).
Oxidizing agent:
+ -
H O + 2H + 2e ––- > 2H O
2 2 2
Reducing agent:
+ -
H O ––- > O + 2H + 2e
2 2 2

NOTE 1 It can be activated by ultraviolet light, ozone or metals to generate free radicals.

NOTE 2 Singlet oxygen can be obtained by reaction of hydrogen peroxide with hypochlorite ion.

4 Purity criteria
4.1 General

This European Standard specifies the minimum purity requirements for hydrogen peroxide used for the

treatment of water intended for human consumption. Limits are given for impurities commonly present

in the product. Depending on the raw material and the manufacturing process other impurities may be

present and, if so, this shall be notified to the user and when necessary to relevant authorities.

Users of this product should check the national regulations in order to clarify whether it is of

appropriate purity for treatment of water intended for human consumption, taking into account raw

water quality, required dosage, contents of other impurities and additives used in the product not

stated in this product standard.
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SIST EN 902:2016
EN 902:2016 (E)

Limits have been given for impurities and chemicals parameters where these are likely to be present in

significant quantities from the current production process and raw materials. If the production process

or raw materials lead to significant quantities of impurities, by-products or additives being present, this

shall be notified to the user.
4.2 Composition of commercial product

The hydrogen peroxide is usually available in concentrated solution with concentration within the

range of mass fraction of 20 % to 70 %. Diluted products are also available.

The concentration of hydrogen peroxide shall be equal to or greater than the manufacturer specified

value.
4.3 Impurities and main by-products
Not applicable.
4.4 Chemical parameters
The product shall conform to the requirements specified in Table 7.
Table 7 — Chemical parameters
Parameter Limit in mg/kg of product
(mass fraction 100 %)
Type 1 Type 2
Arsenic (As) max. 0,5 1
Cadmium (Cd) max. 0,5 1
Chromium (Cr) max. 0,5 1
Mercury (Hg) max. 0,5 1
Nickel (Ni) max. 1 5
Lead (Pb) max. 0,5 1
Antimony (Sb) max. 0,5 1
Selenium (Se) max. 0,5 1
NOTE Cyanide which does not exist in a strong oxidizing medium such
as hydrogen peroxide is not a relevant chemical parameter. Pesticides and
polycyclic aromatic hydrocarbons are not by-products of the manufacturing
process. For parametric values of chemical parameters in drinking water,
see [2].
5 Test methods
5.1 Sampling
Observe the general recommendations of ISO 3165 and take ISO 6206 into account.
5.2 Analysis
5.2.1 Determination of hydrogen peroxide content (main product)
5.2.1.1 Principle

Titration of a test portion of hydrogen peroxide in acidic medium with a potassium permanganate

standard volumetric solution.
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SIST EN 902:2016
EN 902:2016 (E)
5.2.1.2 Reagents

All reagents shall be of a recognized analytical grade and the water used shall conform to grade 3 in

accordance with EN ISO 3696.
5.2.1.2.1 Sulfuric acid, solution, free from reducing substance, 440 g/l:

Check for the absence of reducing substances by adding two drops of the potassium permanganate

solution (5.2.1.2.2) to 1 l of the sulfuric acid solution. The pink coloration shall persist for at least

30 min.

5.2.1.2.2 Potassium permanganate, standard volumetric solution, c(KMnO ) = 0,1 mol/l.

Weigh about 16 g of potassium permanganate (KMnO ) and dissolve in 1 l of water.

Mix the solution and store it in a coloured, ground glass stoppered bottle for at least 10 days before

standardizing.

The standardization shall be carried out in accordance with the following procedure:

a) Preparation of the sodium oxalate, standard volumetric solution, c(Na C O ) = 0,25 mol/l:

2 2 4

Dry the sodium oxalate (Na C O ) at 200 °C for 24 h and allow to cool in a desiccator. Weigh to the

2 2 4

nearest 0,000 1 g, 16,75 g of this product and dissolve it in 200 ml of the sulfuric acid

solution (5.2.1.2.1). Transfer the solution quantitatively to a 500 ml one-mark volumetric flask, dilute to

the mark with water and mix.

Store the solution in a coloured, ground glass stoppered bottle. Store for at least 3 days before using and

discard after 30 d.
b) Determination of the concentration:

Introduce 50 ml (V ) of the sodium oxalate solution (a) into a 500 ml conical flask and add 45 ml of

water and 15 ml of the sulfuric acid solution (5.2.1.2.1).

Heat the mixture to 40 °C by means of a hot water bath. Using a burette, quickly add 38 ml of the

potassium permanganate solution (5.2.1.2.2.). Discoloration shall occur after shaking for several

seconds; if necessary raise the temperature of the test solution slightly. Continue adding the potassium

permanganate solution, drop by drop, until a pink coloration is obtained which persists for 30 s. Note

the volume V
c) Calculation:

The concentration (c ) of the potassium permanganate solution (5.2.1.2.2) expressed in moles per litre

is given by the following formula:
c = 2/5 × (c × V )/V (1)
2 1 1 2
where

c1 is the concentration, in moles per litre, of the sodium oxalate solution used for the titration

in c) (c = 0,25 mol/l);

V is the volume, in millilitres, of the sodium oxalate solution used for the titration in b)

(V = 50,00 ml);

V is the volume, in millilitres, of the potassium permanganate solution used for the titration in

b).
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SIST EN 902:2016
EN 902:2016 (E)
5.2.1.3 Apparatus

Ordinary laboratory apparatus and glassware together with glass containers, about 10 mm in diameter

and 20 mm long.
5.2.1.4 Procedure
5.2.1.4.1 Test portion

Depending on the concentration of the test sample, weigh, to the nearest 0,000 1 g, into one of the clean

glass containers (5.2.1.3) the mass of the test sample (m ) indicated below:
— about 1,1 g for H O solutions with concentration of mass fraction 35 %;
2 2
— about 0,75 g for H O solutions with a concentration of mass fraction 50 %;
2 2
— about 0,55 g for H O solutions with a concentration of mass fraction 70 %.
2 2
5.2.1.4.2 Determination

Introduce 60 ml of water and 15 ml of the sulfuric acid solution (5.2.1.2.1) into a 500 ml conical flask.

Add the potassium permanganate solution (5.2.1.2.2), drop by drop, shaking continuously, until a slight

pink coloration is obtained which persists for 30 s (one drop is usually sufficient).

Add the test portion in the glass container and titrate with the potassium
...

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