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ISO 18549-2:2009

Metallic powders — Determination of apparent density and flow rate at elevated temperatures — Part 2: Determination of flow rate at elevated temperatures

Apr 3, 2009

General information

90.92     Jun 23, 2026

ISO

ISO/TC 119/SC 2

International Standard

77.160  

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Scope

ISO 18549-2:2009 describes two methods for the determination of the time (flow rate) it takes for a given quantity of a heated powder mix, based on iron or steel powders and to be used for warm compaction, to pass through a funnel with a given orifice diameter.
Method A uses a funnel with an orifice of 2,5 mm and a test portion of 50 g and is, to a large extent, based on the method standardized in ISO 4490:2008. The method can only be used for powder mixes that flow freely through the 2,5 mm orifice in the heated condition.
Method B uses a funnel with an orifice of 5 mm and a test portion with a size of 150 g.
Both methods cover a testing temperature range of 60 °C to 180 °C and either of them can be selected after agreement between the parties involved.

Life cycle

NOW

PUBLISHED
ISO 18549-2:2009
90.92 Standard to be revised
Jun 23, 2026

REVISED BY

PROJECT
ISO/AWI 18549-2