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Norm
ISO 7686:1992
Issue date: 1992 06 18
Plastics pipes and fittings — Opacity — Test method
The principle consists in measuring the light flux passing through a test piece cut from a pipe or fitting as a percentage of the incident light flux on the test piece. T...
Withdrawn: 2005 06 30
Publisher:
International Organization for Standardization
Format:
Digital | 3 Pages
Language:
English
Currently valid:
The principle consists in measuring the light flux passing through a test piece cut from a pipe or fitting as a percentage of the incident light flux on the test piece. The standard lays down the maximum acceptable limit for the light which may pass through the wall of the pipe or fitting, if the product standard specifies that they shall be opaque.
