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ISO 6964:1986

Polyolefin pipes and fittings -- Determination of carbon black content by calcination and pyrolysis -- Test method and basic specification

General information

Withdrawn from 27.02.2019
Directives or regulations
None

Standard history

Status
Date
Type
Name
27.02.2019
Main
11.12.1986
Main
The determination is carried out by pyrolysis of a test portion at 550 °C in nitrogen followd by a calcination in a muffle furnace at 900 °C. The carbon black content is calculated from difference in mass before and after calcination. When so determined the carbon black content in polyethylen pipe material shall be 2,5 0,5 % (m/m).

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