SIST EN 451-2:2017

Method of testing fly ash - Part 2: Determination of fineness by wet sieving

This European Standard describes the method for the determination of fly ash fineness by wet sieving on a 0,045 mm sieve (ISO 565).
The standard describes 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. In case of a dispute, only the reference method will be used.

Prüfverfahren für Flugasche - Teil 2: Bestimmung der Feinheit durch Nasssiebung

Diese Europäische Norm beschreibt das Verfahren zur Bestimmung der Feinheit von Flugasche durch Nasssiebung mit einem Sieb mit einer Maschenweite von 0,045 mm (ISO 565).
Die Norm beschreibt das Referenzverfahren. Wenn andere Verfahren angewendet werden, ist nachzuweisen, dass die mit diesen Verfahren erzielten Ergebnisse denjenigen des Referenzverfahrens entsprechen. Im Streitfall ist ausschließlich das Referenzverfahren anzuwenden.

Méthode d'essai des cendres volantes - Partie 2: Détermination de la finesse par tamisage humide

La présente Norme européenne spécifie la méthode permettant de déterminer la finesse des cendres volantes par tamisage humide sur un tamis de 0,045 mm (ISO 565).
La présente Norme européenne 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. En cas de litige, seule la méthode de référence est utilisée.

Metoda preskušanja elektrofiltrskega pepela - 2. del: Ugotavljanje finosti z mokrim sejanjem

Ta evropski standard opisuje metodo za ugotavljanje finosti z mokrim sejanjem z 0,045-mm sitom (ISO 565).
Standard opisuje referenčni postopek. Če se uporabljajo druge metode, je treba dokazati, da so rezultati enakovredni rezultatom referenčne metode. V primeru spora se uporablja le referenčna metoda.

General Information

• Status: Published
• Public Enquiry End Date: 14-Oct-2015
• Publication Date: 10-Aug-2017
• ICS: 91.100.30 - Concrete and concrete products
• Technical Committee: BBB - Concrete, reinforced concrete and prestressed concrete
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 19-Jun-2017
• Due Date: 24-Aug-2017
• Completion Date: 11-Aug-2017
• Ref Project: EN 451-2:2017 - Method of testing fly ash - Part 2: Determination of fineness by wet sieving

Relations

• Replaces: SIST EN 451-2:1996 - Method of testing fly ash - Part 2: Determination of fineness by wet sieving
• Effective Date: 01-Sep-2017
• Replaces: SIST EN 451-2:1996 - Method of testing fly ash - Part 2: Determination of fineness by wet sieving
• Effective Date: 08-Jun-2022

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Metoda preskušanja elektrofiltrskega pepela - 2. del: Ugotavljanje finosti z mokrim sejanjemPrüfverfahren für Flugasche - Teil 2: Bestimmung der Feinheit durch NasssiebungMéthode d'essai des cendres volantes - Partie 2: Détermination de la finesse par tamisage humideMethod of testing fly ash - Part 2: Determination of fineness by wet sieving91.100.30Beton in betonski izdelkiConcrete and concrete productsICS:Ta slovenski standard je istoveten z:EN 451-2:2017SIST EN 451-2:2017en,fr,de01-september-2017SIST EN 451-2:2017SLOVENSKI
STANDARDSIST EN 451-2:19961DGRPHãþD



SIST EN 451-2:2017



EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 451-2
May
t r s y ICS
{ sä s r rä u r Supersedes EN
v w sæ tã s { { vEnglish Version
Method of testing fly ash æ Part
tã Determination of fineness by wet sieving Méthode d 5essai des cendres volantes æ Partie
tã Détermination de la finesse par tamisage humide
Prüfverfahren für Flugasche æ Teil
tã Bestimmung der Feinheit durch Nasssieben This European Standard was approved by CEN on
t y February
t r s yä
egulations which stipulate the conditions for giving this European Standard the status of a national standard without any alterationä Upætoædate lists and bibliographical references concerning such national standards may be obtained on application to the CENæCENELEC Management Centre or to any CEN memberä
translation under the responsibility of a CEN member into its own language and notified to the CENæCENELEC Management Centre has the same status as the official versionsä
CEN members are the national standards bodies of Austriaá Belgiumá Bulgariaá Croatiaá Cyprusá Czech Republicá Denmarká Estoniaá Finlandá Former Yugoslav Republic of Macedoniaá Franceá Germanyá Greeceá Hungaryá Icelandá Irelandá Italyá Latviaá Lithuaniaá Luxembourgá Maltaá Netherlandsá Norwayá Polandá Portugalá Romaniaá Serbiaá Slovakiaá Sloveniaá Spainá Swedená Switzerlandá Turkey and United Kingdomä
EUROPEAN COMMITTEE FOR STANDARDIZATION COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre:
Avenue Marnix 17,
B-1000 Brussels
9
t r s y CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Membersä Refä Noä EN
v w sæ tã t r s y ESIST EN 451-2:2017



EN 451-2:2017 (E) 2 Contents Page European foreword . 3 1 Scope . 4 2 Normative references . 4 3 Terms and definitions . 4 4 Reagents . 4 5 Apparatus . 4 6 Checking the Test Sieve . 7 7 Preparation of sample . 8 8 Procedure. 8 9 Calculation . 8 10 Results . 9 11 Repeatability and reproducibility . 9
SIST EN 451-2:2017



EN 451-2:2017 (E) 3 European foreword This document (EN 451-2:2017) 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. This document supersedes EN 451-2:1994. EN 451, Method of testing fly ash, is currently composed with the following parts: — Part 1: Determination of free calcium oxide content; — Part 2: Determination of fineness by wet sieving [the present document]. 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, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. SIST EN 451-2:2017



EN 451-2:2017 (E) 4 1 Scope This European Standard specifies the method for the determination of fly ash fineness by wet sieving on a 0,045 mm sieve (ISO 565). 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. In case of a dispute, only the reference method is used. 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 450-1:2012, Fly ash for concrete — Part 1: Definition, specifications and conformity criteria ISO 565, Test sieves — Metal wire cloth, perforated metal plate and electroformed sheet — Nominal sizes of openings ISO 3310-1, Test
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