International Standard
ISO 7971-2:2019
Cereals — Determination of bulk density, called mass per hectolitre — Part 2: Method of traceability for measuring instruments through reference to the international standard instrument
Reference number
ISO 7971-2:2019
Edition 3
International Standard
Read sample
ISO 7971-2:2019
Published (Edition 3, 2019)

ISO 7971-2:2019

ISO 7971-2:2019
CHF 129
Convert Swiss francs (CHF) to your currency


This document specifies a test method for ensuring the traceability of bulk density, called "mass per hectolitre", measuring instruments through reference to standard measurement instruments. The mass per hectolitre is of commercial importance for grain cereals. Several types of instruments with varying performances exist for measuring it.

This document 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 information

  •  : Published
     : 2019-02
    : Close of review [90.60]
  •  : 3
     : 23
  • ISO/TC 34/SC 4
  • RSS updates

Got a question?

Check out our Help and Support

Check out our FAQs

Customer care
+41 22 749 08 88

Opening hours:
Monday to Friday - 09:00-12:00, 14:00-17:00 (UTC+1)