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  • EN ISO 7971-2:2009

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    Superseded A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.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

    Available format(s): 

    Superseded date:  13-03-2019

    Language(s): 

    Published date:  15-08-2009

    Publisher:  Comite Europeen de Normalisation

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    Table of Contents - (Show below) - (Hide below)

    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

    Abstract - (Show below) - (Hide below)

    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.

    General Product Information - (Show below) - (Hide below)

    Committee CEN/TC 338
    Document Type Standard
    Publisher Comite Europeen de Normalisation
    Status Superseded
    Superseded By

    Standards Referencing This Book - (Show below) - (Hide below)

    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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