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Kommittébeteckning: SIS/TK 435 (Livsmedel och foder)
Källa: CEN
Svarsdatum: den 22 feb 2018
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This part of ISO 7971 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.

This part of ISO 7971 also specifies the performances required of national standards instruments, secondary standards instruments, and measuring instruments used in laboratories or in collection or storage silos.

Kommittébeteckning: SIS/TK 435 (Livsmedel och foder)
Källa: CEN
Svarsdatum: den 22 feb 2018
Se merSe mindre
 

This part of ISO 7971 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.

NOTE Further details of the measuring instruments are specified in ISO 7971-2, 6.4.