prEN 450-2
(Main)Fly ash for concrete - Part 2: Conformity evaluation
Fly ash for concrete - Part 2: Conformity evaluation
This European Standard specifies the scheme for the evaluation of conformity of fly ash according to EN 450-1.
Flugasche für Beton - Teil 2: Konformitätsbewertung
Diese Europäische Norm legt das Verfahren für die Konformitätsbewertung von Flugasche nach EN 450 1 fest.
Diese Norm enthält technische Regeln für die werkseigene Produktionskontrolle durch den Hersteller, einschließlich der internen Überwachungsprüfungen von Proben. Sie enthält darüber hinaus Regeln für Maßnahmen, die bei Nichtkonformität zu ergreifen sind, sowie das Verfahren für die Zertifizierung der Konformität und Anforderungen für die Auslieferungsstellen.
Cendre volante pour béton - Partie 2: Évaluation de la conformité
La présente Norme européenne spécifie le système d’évaluation de la conformité des cendres volantes selon l’EN 450-1.
Cette norme fournit des règles techniques applicables au contrôle de la production en usine par le producteur, qui comprend les essais d’autocontrôle des échantillons. Elle établit également des règles à suivre en cas de non-conformité, le mode opératoire de certification de la conformité et les exigences relatives aux centres de distribution.
Elektrofiltrski pepel - 2. del: Vrednotenje skladnosti
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Standards Content (Sample)
SLOVENSKI STANDARD
01-junij-2010
Elektrofiltrski pepel - 2. del: Vrednotenje skladnosti
Fly ash for concrete - Part 2: Conformity evaluation
Flugasche für Beton - Teil 2: Konformitätsbewertung
Cendre volante pour béton - Partie 2: Évaluation de la conformité
Ta slovenski standard je istoveten z: prEN 450-2
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.
EUROPEAN STANDARD
DRAFT
NORME EUROPÉENNE
EUROPÄISCHE NORM
April 2010
ICS 91.100.30 Will supersede EN 450-2:2005
English Version
Fly ash for concrete - Part 2: Conformity evaluation
Cendre volante pour béton - Partie 2: Évaluation de la Flugasche für Beton - Teil 2: Konformitätsbewertung
conformité
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee CEN/TC 104.
If this draft becomes a European Standard, 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.
This draft European Standard was established by CEN 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 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.
Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are aware and to
provide supporting documentation.
Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without notice and
shall not be referred to as a European Standard.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2010 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 450-2:2010: E
worldwide for CEN national Members.
Contents
Page
Foreword . 4
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
3.1 Specific definitions . 5
3.2 General definitions . 6
4 Tasks for the producer . 7
4.1 Factory production control . 7
4.2 Internal quality control . 8
4.3 Autocontrol testing of samples .10
5 Tasks for the certification body .11
5.1 General .11
5.2 Surveillance, assessment and acceptance of the production control .11
5.3 Evaluation of the results of autocontrol testing of samples .11
5.4 Audit testing of samples taken at the production plant/depot and initial type testing .12
5.5 Initial inspection of the production plant and the production control .13
5.6 Evaluation of test results during the initial period .14
6 Actions in the event of non-conformity .14
6.1 Actions to be taken by the producer .14
6.2 Actions to be taken by the certification body .14
7 Procedure for third party certification of conformity .15
8 Certificate of conformity and conformity mark .15
8.1 Indication of conformity .15
8.2 Certificate of conformity .15
8.3 Conformity mark .16
9 Requirements for dispatching centres .16
9.1 General requirements .16
9.2 Tasks for the intermediary .16
9.3 Tasks for the third party .17
Annex A (normative) Evaluation of the representativeness and the accuracy of the fineness test
results .20
A.1 General .20
A.2 Sets of results considered .20
A.3 Evaluation procedure .20
A.3.1 Introduction .20
A.3.2 Symbols .20
A.3.3 Evaluation of whether set A and set B belong to the same population (sampling error check) .21
A.3.4 Comparison between set B and set C in order to check the accuracy of the autocontrol
testing (testing error check) .21
Annex B (informative) General definitions .22
B.1 Definitions based on the Construction Products Directive .22
B.2 Definitions from or based on EN 45020 .22
B.3 Definition from EN ISO 9000 .22
B.4 Definitions from EN 197-1 and EN 196-7 .23
Bibliography .24
Tables
Table 1 — Actions to be taken by the certification body in the event of non-conformity of the results of
autocontrol and/or audit testing . 18
Table 2 — Confirmation and audit testing of samples of certified fly ash taken at dispatching centres: properties
and minimum testing frequencies . 19
Table A.1 — Symbols . 21
Foreword
This document (prEN 450-2:2010) has been prepared by Technical Committee CEN/TC 104 “Concrete and
related products”, the secretariat of which is held by DIN.
This document is currently submitted to the CEN Enquiry.
This document will supersede EN 450-2:2005.
The following amendments have been made to the 2005-05 edition of this standard:
extension of provision for processing plants with respect to co-combustions and staring conditions
accuracy provisions of fineness test results
general editorial revision
1 Scope
This European standard specifies the scheme for the evaluation of conformity of fly ash according to EN 450-1.
The standard provides technical rules for the production control by the producer, including autocontrol testing of
samples. It also provides rules for actions to be followed in the event of non-conformity, the procedure for the
certification of conformity and requirements for dispatching centres.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated references,
only the edition cited applies. For undated references, the latest edition of the referenced document (including
any amendments) applies.
EN 196-1, Methods of testing cement — Part 1: Determination of strength
EN 196-7, Methods of testing cement — Part 7: Methods of taking and preparing samples of cement
EN 450-1, Fly ash for concrete — Part 1: Definition, specifications and conformity criteria
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1 Specific definitions
3.1.1
certificate of conformity
document issued under the rules of a certain scheme for the evaluation of conformity indicating that adequate
confidence is provided that fly ash is in conformity with EN 450-1
3.1.2
conformity mark
protected mark applied on the basis of the certificate of conformity (see 3.1.1)
3.1.3
certified fly ash
fly ash for which a certificate of conformity has been issued
3.1.4
initial period
immediate period after the first issuing of the certificate of conformity for a fly ash
3.1.5
certification body
impartial body, governmental or non-governmental, possessing the necessary competence and responsibility to
carry out conformity certification according to given rules of procedure and management
3.1.6
production control
permanent internal control of fly ash production exercised by the producer consisting of internal quality control
and autocontrol testing
3.1.7
production plant
facility, which is under the control of the producer and used for the production of fly ash, e.g.:
a) power plant with one(several) boiler(s), and/or
b) processing plant, for example for the classification, selection, sieving, drying, blending, grinding and/or
carbon reduction of fly ash(es).
NOTE The equipment in the production plant is suitable for production of fly ash including the necessary silo capacity for
the storage and dispatch of the fly ash produced, and equipment to test, evaluate and control the fly ash production. This
equipment and the production control applied allow the control of production with sufficient accuracy to ensure that the
requirements of EN 450-1 are met
3.1.8
new production plant
production plant which is not already producing fly ash certified under this scheme
3.1.9
existing production plant
production plant which is already producing fly ash certified under this scheme
3.1.10
depot
bulk fly ash handling facility (not located at the production plant) used for the dispatch of fly ash (whether in bulk
or bagged) after transfer or storage where the producer has full responsibility for all aspects of the quality of the
fly ash
3.1.11
dispatching centre
bulk fly ash handling facility (not located at the production plant) used for the dispatch of fly ash after transfer or
storage where an intermediary has full responsibility for all aspects of the quality of the fly ash
3.1.12
intermediary
natural or legal person who takes from the producer fly ash certified according to EN 450-2 and bearing the
conformity mark, who undertakes full responsibility for maintaining in a dispatching centre all aspects of the
quality of the fly ash and who supplies the fly ash onwards to a further natural or legal person
3.1.13
confirmation autocontrol testing
continual testing carried out by an intermediary which consists of testing of samples taken by the intermediary at
the point(s
...
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