Resumen
Specifies a test method for determinig the number of insoluble and visible particles including all impurties and foreign particles in cellulose acetate. A test portion is dissolved in a mixture of dichloromethane, methanol and dimethylphthalate. Counting of all visible particles with a diameter greater than 0,15 mm in a square area with a side length of 25 mm.
Informaciones generales
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Estado: PublicadoFecha de publicación: 1990-09Etapa: Norma Internacional confirmada [90.93]
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Edición: 2Número de páginas: 3
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Comité Técnico :ISO/TC 61/SC 9ICS :83.080.20
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Ciclo de vida
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Anteriormente
RetiradaISO 1598:1975
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Ahora