Name: EN ISO 7971-2:2009
Brand: CEN

EN ISO 7971-2:2009

Superseded

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Superseded date

03-13-2019

Published date

08-15-2009

Publisher

Comite Europeen de Normalisation

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Status	Superseded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	EN ISO 7971-2:2019

Standards	Relationship
DIN EN ISO 7971-2:2010-01	Identical
UNE-EN ISO 7971-2:2010	Identical
NEN EN ISO 7971-2 : 2009	Identical
BS EN ISO 7971-2:2019	Identical
I.S. EN ISO 7971-2:2009	Identical
PN-EN ISO 7971-2:2019-03	Identical
SN EN ISO 7971-2 : 2010	Identical
NEN EN ISO 7971-2 : 2019	Identical
ISO 7971-2:2019	Identical
ONORM EN ISO 7971-2 : 2009	Identical
ISO 7971-2:2009	Identical
NF EN ISO 7971-2 : 2019	Identical
UNI EN ISO 7971-2 : 2009	Identical
NF EN ISO 7971-2 : 2009	Identical
ÖNORM EN ISO 7971-2: 2019 05 15	Identical
NBN EN ISO 7971-2 : 2009	Identical
NS EN ISO 7971-2 : 2009	Identical
BS EN ISO 7971-2:2009	Identical
PN EN ISO 7971-2 : 2010	Identical
UNI EN ISO 7971-2 : 2019	Identical

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