NF V03-719

NF V03-719

September 1996
Standard Cancelled

Cereals. Determination of bulk density, called "mass per hectolitre".

La masse volumique dite "masse à l'hectolitre", également et traditionnellement appelée "poids spécifique", est un critère universellement utilisé dans le commerce des céréales et principalement du blé. Sa détermination, simple et facile à mettre en oeuvre, donne quelques indications sur la teneur en eau et les impuretés des céréales et le rendement en farine dans le cas des blés.

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Collections

National standards and national normative documents

Publication date

September 1996

Number of pages

9 p.

Reference

NF V03-719

ICS Codes

17.060   Measurement of volume, mass, density, viscosity
67.060   Cereals, pulses and derived products

Classification index

V03-719

Print number

1 - 01/09/1996

International kinship

ISO 7971:1986
Sumary
Cereals. Determination of bulk density, called "mass per hectolitre".

La masse volumique dite "masse à l'hectolitre", également et traditionnellement appelée "poids spécifique", est un critère universellement utilisé dans le commerce des céréales et principalement du blé. Sa détermination, simple et facile à mettre en oeuvre, donne quelques indications sur la teneur en eau et les impuretés des céréales et le rendement en farine dans le cas des blés.
Replaced standards (1)
NF V03-719
August 1988
Standard Cancelled
Cereals. Determination of bulk density, called "MASS per hectolitre".

La masse volumique dite "masse à l'hectolitre", également et traditionnellement appelée "poids spécifique", est un critère universellement utilisé dans le commerce des céréales et principalement du blé. Sa détermination, simple et facile à mettre en oeuvre, donne quelques indications sur la teneur en eau et les impuretés des céréales et le rendement en farine dans le cas des blés. Cependant, cette détermination fait l'objet de critiques nombreuses en raison de son caractère non scientifique ; les résultats étant fortement influencés par l'espace vide entre les grains conjointement mesuré par la méthode. D'autre part, les indications données par cette détermination peuvent être obtenues par des méthodes spécifiques et précises.

Standard replaced by (3)
NF EN ISO 7971-1
October 2009
Standard Current
Cereals - Determination of bulk density, called mass per hectolitre - Part 1 : reference method

ISO 7971-1:2009 specifies the reference method for the determination of bulk density, called “mass per hectolitre”, of cereals as grain.

NF EN ISO 7971-2
October 2009
Standard Cancelled
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 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.

NF EN ISO 7971-3
October 2009
Standard Cancelled
Cereals - Determination of bulk density, called mass per hectolitre - Part 3 : routine method

ISO 7971-3:2009 specifies a routine method for the determination of bulk density, called “mass per hectolitre” of cereals as grain using manual or automatic, mechanical, electric or electronic mass per hectolitre measuring instruments.

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