ISO 4490:1978
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
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Metallic powders Determination of flowability by means of a calibrated funnel (Hall flowmeter)
Hardcopy , PDF , PDF 3 Users , PDF 5 Users , PDF 9 Users
23-09-2021
French, English
01-07-1978
The method is applicable only to powders which flow freely through the specified test orifice. It measures the time required for 50 g of a metallic powder to flow through the orifice of a calibrated funnel. Specifies apparatus, calibration of the funnel, sampling, procedure, expression of results and test report.
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