Reference number
ISO 1265:1979
© ISO 2024
ISO 1265:1979
Plastics — Polyvinyl chloride resins — Determination of number of impurities and foreign particles
Edition 1
1979-07
Withdrawn
Withdrawn (Edition 1, 1979)

Abstract

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.

General information

  • Status
     : Withdrawn
    Publication date
     : 1979-07
    Stage
    : Withdrawal of International Standard [95.99]
  • Edition
     : 1
    Number of pages
     : 3
  • Technical Committee :
    ISO/TC 61/SC 9
    ICS :
    83.080.20 
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