EN 899:2003
(Main)Chemicals used for treatment of water intended for human consumption - Sulfuric acid
Chemicals used for treatment of water intended for human consumption - Sulfuric acid
This European standard is applicable to sulfuric acid used for treatment of water intended for human consumption. It describes the characteristics of sulfuric acid and specifies the requirements and the corresponding test methods for sulfuric acid. It gives information on its use in water treatment.
NOTE Conformity with the 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.
Produkte zur Aufbereitung von Wasser für den menschlichen Gebrauch - Schwefelsäure
Diese Europäische Norm gilt für Schwefelsäure zur Aufbereitung von Wasser für den menschlichen Gebrauch. Sie beschreibt die Eigenschaften von Schwefelsäure und legt die Anforderungen sowie die entsprechenden Prüfverfahren für Schwefelsäure fest. Sie gibt Informationen für die Anwendung von Schwefelsäure in der Wasseraufbereitung.
ANMERKUNG Eine Übereinstimmung mit dieser Norm bedeutet keine gleichzeitige Annahme oder Zulassung des Produktes in einem der Mitgliedsländer der EU oder EFTA. Die Anwendung des in dieser Norm beschriebenen Produktes hängt von den jeweiligen Regelungen der nationalen autorisierten Stellen ab.
Produits chimiques utilisés pour le traitement de l'eau destinée à la consommation humaine - Acide sulfurique
La présente Norme européenne est applicable à l'acide sulfurique utilisé pour le traitement de l'eau destinée à la consommation humaine. Elle décrit les caractéristiques de l'acide sulfurique et précise les prescriptions et les méthodes d'essai correspondantes. Elle donne des informations pour son emploi dans le traitement de l'eau.
Kemikalije, ki se uporabljajo za pripravo pitne vode - Žveplova kislina
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN 899:2003
01-oktober-2003
1DGRPHãþD
SIST EN 899:1999
Kemikalije, ki se uporabljajo za pripravo pitne vode - Žveplova kislina
Chemicals used for treatment of water intended for human consumption - Sulfuric acid
Produkte zur Aufbereitung von Wasser für den menschlichen Gebrauch - Schwefelsäure
Produits chimiques utilisés pour le traitement de l'eau destinée a la consommation
humaine - Acide sulfurique
Ta slovenski standard je istoveten z: EN 899:2003
ICS:
13.060.20 Pitna voda Drinking water
71.100.80 .HPLNDOLMH]DþLãþHQMHYRGH Chemicals for purification of
water
SIST EN 899:2003 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN 899:2003
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SIST EN 899:2003
EUROPEAN STANDARD
EN 899
NORME EUROPÉENNE
EUROPÄISCHE NORM
June 2003
ICS 71.100.80 Supersedes EN 899:1996
English version
Chemicals used for treatment of water intended for human
consumption - Sulfuric acid
Produits chimiques utilisés pour le traitement de l'eau Produkte zur Aufbereitung von Wasser für den
destinée à la consommation humaine - Acide sulfurique menschlichen Gebrauch - Schwefelsäure
This European Standard was approved by CEN on 25 April 2003.
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 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 Management Centre has the same status as the official
versions.
CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,
Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and United
Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36 B-1050 Brussels
© 2003 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 899:2003 E
worldwide for CEN national Members.
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SIST EN 899:2003
EN 899:2003 (E)
Contents page
Foreword.3
Introduction .4
1 Scope .5
2 Normative references .5
3 Description .5
3.1 Identification.5
3.2 Commercial forms .6
3.3 Physical properties.6
3.4 Chemical properties .8
4 Purity criteria.8
4.1 General.8
4.2 Composition of commercial product .8
4.3 Chemical parameters and indicator parameters .9
5 Test methods.9
5.1 Sampling.9
5.2 Analyses .10
6 Labelling - Transportation - Storage.13
6.1 Means of delivery.13
6.2 Risk and safety labelling according to the EU Directives .13
6.3 Transportation regulations and labelling .14
6.4 Marking .15
6.5 Storage.15
Annex A (informative) General information on sulfuric acid .16
A.1 Origin.16
A.2 Use.16
Annex B (normative) General rules relating to safety .17
B.1 Rules for safe handling and use.17
B.2 Emergency procedures .17
Bibliography .18
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SIST EN 899:2003
EN 899:2003 (E)
Foreword
This document (EN 899:2003) 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 December 2003, and conflicting national standards shall be withdrawn at the latest
by December 2003.
This document supersedes EN 899:1996.
Significant technical differences between this edition and EN 899:1996 are as follows:
a) new procedure for sampling ;
b) taking into account the new EU Directive 98/83/EC ;
c) expansion of Table 2 to include more details of materials for containers.
Annex A is informative.
Annex B is normative.
NOTE Conformity with the 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.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following
countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal,
Slovakia, Spain, Sweden, Switzerland and the United Kingdom.
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SIST EN 899:2003
EN 899:2003 (E)
Introduction
In respect of potential adverse effects on the quality of water intended for human consumption, caused by the
product covered by this standard:
a) this standard provides no information as to whether the product may be used without restriction in any of
Member States of the EU or EFTA ;
b) 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.
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EN 899:2003 (E)
1 Scope
This European standard is applicable to sulfuric acid used for treatment of water intended for human consumption.
It describes the characteristics of sulfuric acid and specifies the requirements and the corresponding test methods
for sulfuric acid. It gives information on its use in water treatment.
2 Normative references
This European Standard incorporates by dated or undated reference, provisions from other publications. These
normative references are cited at the appropriate places in the text, and the publications are listed hereafter. For
dated references, subsequent amendments to or revisions of any of these publications apply to this European
Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the
publication referred to applies (including amendments).
EN 1483, Water quality – Determination of mercury.
EN 26595, Water quality - Determination of total arsenic – Silver diethyldithiocarbamate spectrophotometric method
(ISO 6595:1982).
EN ISO 3696, Water for analytical laboratory use – Specification and test methods (ISO 3696:1987).
EN ISO 11885, Water quality – determination of 33 elements by inductively coupled plasma atomic emission
spectroscopy (ISO 11885:1996).
ISO 910, Sulfuric acid and oleum for industrial use – Determination of total acidity, and calculation of free sulfur
trioxide content of oleum – Titrimetric method.
ISO 3165, Sampling of chemical products for industrial use – Safety in sampling.
ISO 3423, Sulfuric acid and oleums for industrial use – Determination of sulphur dioxide content - Iodometric
method.
ISO 6206, Chemical products for industrial use – Sampling – Vocabulary.
ISO 6332, Water quality – Determination of iron – Spectrometric method using 1,10-phenanthroline.
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.
ISO 9965, Water quality – Determination of selenium – Atomic absorption spectrometric method (hydride
technique).
3 Description
3.1 Identification
3.1.1 Chemical name
Sulfuric acid.
3.1.2 Synonym or common name
Oil of vitriol.
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SIST EN 899:2003
EN 899:2003 (E)
3.1.3 Relative molecular mass
98.
3.1.4 Empirical formula
H SO .
2 4
3.1.5 Chemical formula
H SO .
2 4
1)
3.1.6 CAS Registry Number
7664-93-9.
2)
3.1.7 EINECS reference
231-639-5.
3.2 Commercial forms
Sulfuric acid is available as aqueous solutions.
NOTE For some water treatment applications diluted acid can be used.
3.3 Physical properties
3.3.1 Appearance
The product is clear or slightly turbid, colourless liquid.
3.3.2 Density
1,84 g/ml for sulfuric acid concentration of mass fraction of 96 % at 20 °C.
1,71 g/ml for sulfuric acid concentration of mass fraction of 78 % at 20 °C.
1,18 g/ml for sulfuric acid concentration of mass fraction of 25 % at 20 °C.
3.3.3 Solubility in water
3.3.4 At all concentrations, the product is miscible with water.Vapour pressure
Below 0,000 01 kPa for sulfuric acid concentration of mass fraction of 96 % at 20 °C.
Below 0,1 kPa for sulfuric acid concentration of mass fraction of 78 % at 20 °C.
Below 1,9 kPa for sulfuric acid concentration of mass fraction of 25 % at 20 °C.
1) Chemical Abstracts Service Registry Number.
2) European Inventory of Existing Commercial Chemical Substances.
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SIST EN 899:2003
EN 899:2003 (E)
3)
3.3.5 Boiling point at 100 kPa
+ 310 °C for sulfuric acid concentration of mass fraction of 96 %.
approximately + 200 °C for sulfuric acid concentration of mass fraction of 78 %.
+ 106,5 °C for sulfuric acid concentration of mass fraction of 25 %.
3.3.6 Melting point
+ 5 °C for sulfuric acid concentration of mass fraction of 98 %.
- 10 °C for sulfuric acid concentration of mass fraction of 96 %.
- 11 °C for sulfuric acid concentration of mass fraction of 78 %.
- 22 °C for sulfuric acid concentration of mass fraction of 25 %.
3.3.7 Specific heat
1,465 kJ/(kg.K) for sulfuric acid concentration of mass fraction of 96 % at 20 °C.
3.3.8 Viscosity (dynamic)
22 mPa.s for sulfuric acid concentration of mass fraction of 96 % at 20 °C.
16,7 mPa.s for sulfuric acid concentration of mass fraction of 78 % at 20 °C.
3.3.9 Critical temperature
Not applicable.
3.3.10 Critical pressure
Not applicable.
3.3.11 Physical hardness
Not applicable.
3) 100 kPa = 1 bar.
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3.4 Chemical properties
Concentrated sulfuric acid reacts violently :
with bases or with water (exothermic reaction) ;
with reducing agents due to oxidizing properties ;
with combustible materials due to oxidizing and dehydrating properties.
The concentrated acid is a strong oxidizing agent and can cause ignition in contact with organic materials.
Sulfuric acid (of sulfuric acid content less than a mass fraction of 70 %) attacks most common metals, e.g. iron,
zinc, liberating the flammable gas hydrogen.
WARNING — Mixing with water produces a marked temperature rise. Therefore ALWAYS ADD THE ACID
TO THE WATER (NEVER THE REVERSE), slowly and agitating continuously.
4 Purity criteria
4.1 General
This European Standard specifies the minimum purity requirements for sulfuric acid 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.
NOTE Users of this product should satisfy themselves that 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 products not stated in the product standard, and other relevant factors.
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 usual commercial concentrations of sulfuric acid available have a mass fraction of 96% or 98 %.
Other concentrations of sulfuric acid between a mass fraction of 25 % and 80 % are also available.
If sold as concentrated acid, the mass fraction of sulfuric acid shall be in the range of 92 % to 98 % sulfuric acid.
The concentration of sulfuric acid shall be within a mass fraction of – 1 % (m/m) of the manufacturer's declared
value.
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SIST EN 899:2003
EN 899:2
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