ISO 4490:1978 PDF
Metallic powders — Determination of flowability by means of a calibrated funnel (Hall flowmeter)
Open preview (PDF)Metallic powders — Determination of flowability by means of a calibrated funnel (Hall flowmeter)Metallic powders — Determination of flowability by means of a calibrated funnel (Hall flowmeter)
- Document status:
- Withdrawn
- Format:
- Electronic (PDF)
- Number of pages:
- 3
- Publication date:
- July 1, 1978
- Edition:
- ISO IS 4490 edition 1 version 1
- ICS:
- 77.160
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.
Technical details
- Technical committee
- ISO/TC 119/SC 2 - Sampling and testing methods for powders (including powders for hardmetals)
- SKU
- ISO 4490:1978


