Resumen
Specification of a visual method of determining the number of impurities and foreign particles in polyvinylchloride resin. About 200 g of resin are flattened between a rigid white plate and a glass sheet containing a grid. The impurities and foreign particles visible in 25 squares (= 225 cm ) and having a diameter equal or greater than 0,250 mm are counted. Expression of the result by extrapolation as the number of specks per 100 squares of the grid.
Informaciones generales
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Estado: RetiradaFecha de publicación: 1979-07Etapa: Retirada de la Norma Internacional [95.99]
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Edición: 1Número 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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Ahora
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Revisada por
PublicadoISO 1265:2007