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ASTM D380 & D471

Tim_45 Member Posts: 6
Are these likely to tell me if there is a oxygen-diffusion barrier in the tubing?


  • Tim_45
    Tim_45 Member Posts: 6


    (ASTM) American Society for Testing and Materials) D380 and D471

    If rubber tubing for radiant heat has these markings, what does it actually tell me about the tube?
  • Al Letellier_9
    Al Letellier_9 Member Posts: 929
    ASTM markings

    D380 is the standards for rubber hose
    D471 is the standards for rubber tubing and the effects of fluids on the tubing.
    Go to: www.webstone.ansi.org for more info
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