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ISO/FDIS 5311

Fertilizers — Determination of bulk density (tapped)

General information

50.20     Dec 8, 2025

ISO

ISO/TC 134

International Standard

65.080  

Scope

Specifies two methods for dry fertilizers only: the machine-tapping method and the hand-tapping method. Its principle is pouring the fertilizer from a specified funnel into a specified measuring cylinder of known volume, tapping the cylinder by means of a tapping machine or the walls of the cylinder by hand, and weighing the contents of the cylinder. If the fertilizer has absorbed moisture during transport or storage, it is necessary to dry it in an environmental chamber.

Life cycle

PREVIOUSLY

PUBLISHED
ISO 5311:1992

NOW

PROJECT
ISO/FDIS 5311
50.20 Proof sent to secretariat or FDIS ballot initiated: 8 weeks
Dec 8, 2025

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