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ISO 4590:2016
M00005283
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ISO 4590:2016 Rigid cellular plastics - Determination of the volume percentage of open cells and of closed cells
standard by International Organization for Standardization, 07/15/2016
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ISO 4590:2016 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.