Resumen
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. Two alternative methods (method 1 and method 2), and corresponding apparatus, are specified for the measurement of the impenetrable volume. The results obtained from method 2 are intended to be used for comparison purposes only.
Informaciones generales
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Estado: RetiradaFecha de publicación: 2002-03Etapa: Retirada de la Norma Internacional [95.99]
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Edición: 2Número de páginas: 17
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Comité Técnico :ISO/TC 61/SC 10ICS :83.100
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Ciclo de vida
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Anteriormente
RetiradaISO 4590:1981
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Ahora
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Revisada por
PublicadoISO 4590:2016