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CEN
EN ISO 7971-2:2009

EN ISO 7971-2:2009

Superseded

Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

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Cereals - Determination of bulk density, called mass per hectolitre - Part 2: Method of traceability for measuring instruments through reference to the international standard instrument (ISO 7971-2:2009)

Superseded date

13-03-2019

Superseded by

EN ISO 7971-2:2019

Published date

15-08-2009

Publisher

Comite Europeen de Normalisation

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Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Requirements
5 Principle
6 Apparatus
7 Procedure
8 Monitoring of instrument performance
9 Test reports
10 Identification of traced measuring instruments
Annex A (normative) Method for calculation of performance
        parameters of standard instruments and of measurement
        instruments
Annex B (informative) Some owners of certified standard
        measurement instruments
Bibliography

ISO 7971-2:2009 specifies a test method for ensuring the traceability of mass per hectolitre measuring instruments through reference to standard measurement instruments. The mass per hectolitre or bulk density is of commercial importance for grain cereals. Several types of instruments with varying performances exist for measuring it.ISO 7971-2:2009 also specifies the performances required of national standards instruments, secondary standards instruments, and measuring instruments used in laboratories or in collection or storage silos.

Committee
CEN/TC 338
DocumentType
Standard
PublisherName
Comite Europeen de Normalisation
Status
Superseded
SupersededBy

ISO 712:2009 Cereals and cereal products — Determination of moisture content — Reference method
ISO 7971-1:2009 Cereals Determination of bulk density, called mass per hectolitre Part 1: Reference method
ISO 3534-2:2006 Statistics — Vocabulary and symbols — Part 2: Applied statistics
EN 15587:2008+A1:2013 Cereals and cereal products - Determination of Besatz in wheat (Triticum aestivum L.), durum wheat (Triticum durum Desf.), rye (Secale cereale L.) and feed barley (Hordeum vulgare L.)
ISO 10012:2003 Measurement management systems — Requirements for measurement processes and measuring equipment
OIML R 15 : 1970 INSTRUMENTS FOR MEASURING THE HECTOLITRE MASS OF CEREALS

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