Тезис

The test can be used to determine whether cold slug or unfused areas are present, to determine the amount of moulded-in stress produced by the moulding process, reveal contamination and to show the quality of the weld. Complete fittings are subjected to a temperature of 150° centigrade in an air-circulating oven for a given time depending on the wall thickness of the fitting. The surfaces of the fitting are examined before and after heating. Cracks, blisters,*delamination or weld opening is measured, expressed as a percentage of the wall thickness.


Общая информация 

  • Текущий статус
     : Отозвано
    Дата публикации
     : 1990-11
  • Версия
     : 2
  • Технический комитет
     : ISO/TC 138/SC 5 General properties of pipes, fittings and valves of plastic materials and their accessories -- Test methods and basic specifications
  • ICS
     :
    23.040.45 Plastics fittings

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  2. Интернет-магазин
  3. Каталог стандартов
  4. МКС
  5. 23
  6. 23.040
  7. 23.040.45
  8. ISO 580:1990