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ISO 5311:2026

Fertilizers — Determination of bulk density (tapped)

Standard Details

This document specifies two methods for the determination of the bulk density (tapped) of solid fertilizers:

  • the machine-tapping method (method 1);
  • the hand-tapping method (method 2).

These methods are applicable to dry fertilizers only.

Neither method is suitable for materials which contain a large proportion of particles exceeding 5 mm in diameter.

Method 2 is applicable only to spherical granules and to prills. It is not applicable to sharp-edged grains.

NOTE            Because of the differences in tapping technique, the two methods will not necessarily give the same value for the bulk density (tapped).

General Information

Status : Published
Standard Type: Main
Document No: ISO 5311:2026
Document Year: 2026
Pages: 5
Edition: 4
  • Section Volume:
  • ISO/TC 134. Fertilizers and soil conditioners

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ISO 5311:2026

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