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Full Description

ISO 7685:2019 specifies methods for determining the initial ring stiffness of glass-reinforced thermosetting plastics (GRP) pipes. Two methods are given (constant load and constant deflection), and within the specified deflection limits, each is equally valid and can be used for any diameter.

 

Document History

  1. ISO 7685:2019

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    Glass-reinforced thermosetting plastics (GRP) pipes - Determination of initial ring stiffness

    • Most Recent
  2. ISO 7685:1998


    Plastics piping systems -- Glass-reinforced thermosetting plastics (GRP) pipes -- Determination of initial specific ring stiffness

    • Historical Version