SIST EN ISO 20843:2011

SLOVENSKI STANDARD
SIST EN ISO 20843:2011
01-marec-2011
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SIST EN ISO 20843:2004
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Petroleum and related products - Determination of pH of fireresistant fluids within
categories HFAE, HFAS and HFC (ISO 20843:2011)
Mineralölerzeugnisse und verwandte Produkte - Bestimmung des pH-Wertes
schwerentflammbarer Flüssigkeiten der Kategorien HFAE, HFAS und HFC (ISO
20843:2011)
Pétrole et produits connexes - Détermination du pH des fluides difficilement
inflammables de catégories HFAE, HFAS ou HFC (ISO 20843:2011)
Ta slovenski standard je istoveten z: EN ISO 20843:2011
ICS:
75.080 Naftni proizvodi na splošno Petroleum products in
general
SIST EN ISO 20843:2011 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO 20843:2011

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SIST EN ISO 20843:2011


EUROPEAN STANDARD
EN ISO 20843

NORME EUROPÉENNE

EUROPÄISCHE NORM
January 2011
ICS 75.120 Supersedes EN ISO 20843:2003
English Version
Petroleum and related products - Determination of pH of fire-
resistant fluids within categories HFAE, HFAS and HFC (ISO
20843:2011)
Pétrole et produits connexes - Détermination du pH des Mineralölerzeugnisse und verwandte Produkte -
fluides difficilement inflammables de catégories HFAE, Bestimmung des pH-Wertes schwerentflammbarer
HFAS ou HFC (ISO 20843:2011) Flüssigkeiten der Kategorien HFAE, HFAS und HFC (ISO
20843:2011)
This European Standard was approved by CEN on 3 January 2011.

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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland,
Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.





EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2011 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 20843:2011: E
worldwide for CEN national Members.

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SIST EN ISO 20843:2011
EN ISO 20843:2011 (E)
Contents Page
Foreword .3

2

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SIST EN ISO 20843:2011
EN ISO 20843:2011 (E)
Foreword
This document (EN ISO 20843:2011) has been prepared by Technical Committee ISO/TC 28 "Petroleum
products and lubricants" in collaboration with Technical Committee CEN/TC 19 “Gaseous and liquid fuels,
lubricants and related products of petroleum, synthetic and biological origin” the secretariat of which is held by
NEN.
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 July 2011, and conflicting national standards shall be withdrawn at the
latest by July 2011.
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 ISO 20843:2003.
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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain,
Sweden, Switzerland and the United Kingdom.
Endorsement notice
The text of ISO 20843:2011 has been approved by CEN as a EN ISO 20843:2011 without any modification.

3

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SIST EN ISO 20843:2011

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SIST EN ISO 20843:2011

INTERNATIONAL ISO
STANDARD 20843
Second edition
2011-01-15


Petroleum and related products —
Determination of pH of fire-resistant
fluids within categories HFAE, HFAS and
HFC
Pétrole et produits connexes — Détermination du pH des fluides
difficilement inflammables de catégories HFAE, HFAS ou HFC




Reference number
ISO 20843:2011(E)
©
ISO 2011

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SIST EN ISO 20843:2011
ISO 20843:2011(E)
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ii © ISO 2011 – All rights reserved

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SIST EN ISO 20843:2011
ISO 20843:2011(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies
(ISO member bodies). The work of preparing International Standards is normally carried out through ISO
technical committees. Each member body interested in a subject for which a technical committee has been
established has the right to be represented on that committee. International organizations, governmental and
non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the
International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.
International Standards are drafted i
...