EN 451-1:2017

Method of testing fly ash - Part 1: Determination of free calcium oxide content

This European Standard specifies the procedure for the determination of free calcium oxide content in fly ash.
The European Standard specifies the reference procedure. If other methods are used it needs to be shown that they give results equivalent to those obtained by the reference method.

Prüfverfahren für Flugasche - Teil 1: Bestimmung des freien Calciumoxidgehalts

Diese Europäische Norm legt das Verfahren zur Bestimmung des freien Calciumoxidgehalts in Flugasche fest.
Diese Europäische Norm legt das Referenzverfahren fest. Wenn andere Verfahren verwendet werden, ist nachzuweisen, dass die mit diesen Verfahren erzielten Ergebnisse denjenigen des Referenzverfahrens entsprechen.

Méthode d'essai des cendres volantes - Partie 1: Détermination de la teneur en oxyde de calcium libre

La présente Norme européenne spécifie le mode opératoire qui permet de déterminer la teneur en oxyde de calcium libre des cendres volantes.
Elle spécifie la méthode de référence. Si d'autres méthodes sont utilisées, il est nécessaire de démontrer qu'elles permettent d'obtenir des résultats équivalents à ceux obtenus au moyen de la méthode de référence.

Metoda preskušanja elektrofiltrskega pepela - 1. del: Ugotavljanje deleža prostega kalcijevega oksida

Ta evropski standard opisuje postopek za ugotavljanje deleža prostega kalcijevega oksida v elektrofiltrskem pepelu.
Standard opisuje referenčni postopek. Če se uporabljajo druge metode, je treba dokazati, da so rezultati enakovredni rezultatom referenčne metode.

General Information

• Status: Published
• Publication Date: 02-May-2017
• Withdrawal Date: 29-Nov-2017
• ICS: 91.100.30 - Concrete and concrete products
• Technical Committee: CEN/TC 104 - Concrete ( performance, production, placing and compliance criteria )
• Drafting Committee: CEN/TC 104/WG 4 - EN 450 fly ash for concrete
• Ref Project: SIST EN 451-1:2017 - Method of testing fly ash - Part 1: Determination of free calcium oxide content

Relations

• Replaces: EN 451-1:2003 - Method of testing fly ash - Part 1: Determination of free calcium oxide content
• Effective Date: 10-May-2017

Standards Content (Sample)

SLOVENSKI STANDARD
01-september-2017
1DGRPHãþD
SIST EN 451-1:2004
Metoda preskušanja elektrofiltrskega pepela - 1. del: Ugotavljanje deleža prostega
kalcijevega oksida
Method of testing fly ash - Part 1: Determination of free calcium oxide content
Prüfverfahren für Flugasche - Teil 1: Bestimmung des freien Calciumoxidgehalts
Méthode d'essai des cendres volantes - Partie 1 : Détermination de la teneur en oxyde
de calcium libre
Ta slovenski standard je istoveten z: EN 451-1:2017
ICS:
91.100.30 Beton in betonski izdelki Concrete and concrete
products
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN 451-1
EUROPEAN STANDARD
NORME EUROPÉENNE
May 2017
EUROPÄISCHE NORM
ICS 91.100.30 Supersedes EN 451-1:2003
English Version
Method of testing fly ash - Part 1: Determination of free
calcium oxide content
Méthode d'essai des cendres volantes - Partie 1: Prüfverfahren für Flugasche - Teil 1: Bestimmung des
Détermination de la teneur en oxyde de calcium libre freien Calciumoxidgehalts
This European Standard was approved by CEN on 27 February 2017.

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, Serbia, 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
© 2017 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 451-1:2017 E
worldwide for CEN national Members.

Contents Page
European foreword . 3
1 Scope . 4
2 Normative references . 4
3 General . 4
3.1 Number of determinations . 4
3.2 Repeatability and reproducibility . 4
3.3 Expression of masses and volumes. 4
4 Reagents . 4
5 Apparatus . 5
6 Procedure. 5
6.1 Preparation of sample . 5
6.2 Determination . 5
6.3 Calculation . 5
7 Result . 6
8 Repeatability and reproducibility . 6

European foreword
This document (EN 451-1:2017) has been prepared by Technical Committee CEN/TC 104 “Concrete
and related products”, the secretariat of which is held by DIN.
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 2017, and conflicting national standards
shall be withdrawn at the latest by November 2017.
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.
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