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     :  Withdrawn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
  • Edition
     : 1
    Number of pages
     : 3
  • Technical Committee
     : ISO/TC 61/SC 9 Thermoplastic materials
  • ICS
     :
    83.080.20 Thermoplastic materials

Life cycle


Got a question?

Check out our FAQs

Customer care
+41 22 749 08 88

Opening hours:
Monday to Friday - 09:00-12:00, 14:00-17:00 (UTC+1)

Keep up to date with ISO

Sign up to our newsletter for the latest news, views and product information.

  2. Store
  3. Standards catalogue
  4. ICS
  5. 83
  6. 83.080
  7. 83.080.20
  8. ISO 1265:1979