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Norm

ÖNORM EN ISO 4590

Issue date: 2016 11 01

Rigid cellular plastics - Determination of the volume percentage of open cells and of closed cells (ISO 4590:2016)

This International Standard specifies a general procedure for the determination of the volume percentage of open and of closed cells of rigid cellular plastics, by measur...
Valid
Publisher:
Austrian Standards International
Format:
Digital | 29 Pages
Language:
German | English | Download GER/ENG
Optionally co-design standards:
This International Standard specifies a general procedure for the determination of the volume percentage of open and of closed cells of rigid cellular plastics, by measurement first of the geometrical volume and then of the air-impenetrable volume of test specimens. The procedure includes the correction of the apparent open-cell volume by taking into account the surface cells opened by cutting during specimen preparation. Three alternative methods (method 1, method 2a and method 2b), and corresponding apparatus, are specified for the measurement of the impenetrable volume.
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