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).

General information

  • Status :  Withdrawn
    Publication date : 1986-12
  • Edition : 1
    Number of pages : 2
  • :
    ISO/TC 138/SC 5
    General properties of pipes, fittings and valves of plastic materials and their accessories -- Test methods and basic specifications
  • 23.040.20
    Plastics pipes

Life cycle

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