ISO 1265:1979
Plastics; Polyvinyl chloride resins; Determination of number of impurities and foreign particles

Standard No.

ISO 1265:1979

Release Date

1979

Published By

International Organization for Standardization (ISO)

Status

Withdraw

Replace By

ISO 1265:2007

Latest

ISO 1265:2007

Scope

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.

ISO 1265:1979 history

• 2007 ISO 1265:2007 Plastics - Poly(vinyl chloride) resins - Determination of number of impurities and foreign particles
• 1979 ISO 1265:1979 Plastics; Polyvinyl chloride resins; Determination of number of impurities and foreign particles