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).
Status: WithdrawnPublication date: 1986-12
Edition: 1Number of pages: 2
Technical Committee: ISO/TC 138/SC 5 General properties of pipes, fittings and valves of plastic materials and their accessories -- Test methods and basic specifications
- ICS :
- 23.040.20 Plastics pipes
ISO 6964:1986Stage: 95.99
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