Medical Gas Professional Healthcare Organization

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Testing Medical Gas Piping Systems

  • Friday, June 09, 2017 3:05 PM
    Message # 4890215
    Al Moon (Administrator)

    An ASSE 6030 Verifier is to Certify a newly added medical air line in a existing wing of the hospital. Again only medical air is to be installed and tested. He or She reviews the existing medical air compressor system and the dew-point is 32 deg f at 52 psig at both the systems dew point monitor and the 1/4" sample port with their on site testing monitor (yes all is good and no alarms at both master alarm panels). Part of their testing is the pipeline purity test.

    The reading at the sample location (the last outlet) in the existing wing, on the newly installed medical air line system is 33 deg f at 52 psig.

    QUESTION:

    Pass or Fail per NFPA 99 2012 Edition

     

     

  • Saturday, June 10, 2017 9:44 AM
    Reply # 4891010 on 4890215

    The verifier FAILED to properly do his testing.  


    5.1.12.3.9 Final Tie-In Test.

    5.1.12.3.9.1 Prior to the connection of any work or any extension or addition to an existing piping system, the tests in 5.1.12.3.1 through 5.1.12.3.8 shall be successfully performed on the new work. 


    This purity test is required to be done before the final tie in.....


    5.1.12.3.8.6 The moisture concentration of the outlet test shall not exceed 500 ppm or an equivalent pressure dew point of 12°C (10°F) at a gauge pressure of 345 kPa (50 psi). 


  • Sunday, June 11, 2017 8:10 AM
    Reply # 4891629 on 4890215
    Al Moon (Administrator)

    Lets start again the medical air system is existing.  

    The Pipeline Purify Testing, is allow to be performed with the source gas.

    The source gas is NFPA 99 Code compliant with a pressure dew point of 32 F at 50 to 55 psig. Now do I get down to 10 deg f ?

  • Friday, June 23, 2017 9:35 AM
    Reply # 4914187 on 4890215
    Al Moon wrote:

    An ASSE 6030 Verifier is to Certify a newly added medical air line in a existing wing of the hospital. Again only medical air is to be installed and tested. He or She reviews the existing medical air compressor system and the dew-point is 32 deg f at 52 psig at both the systems dew point monitor and the 1/4" sample port with their on site testing monitor (yes all is good and no alarms at both master alarm panels). Part of their testing is the pipeline purity test.

    The reading at the sample location (the last outlet) in the existing wing, on the newly installed medical air line system is 33 deg f at 52 psig.

    QUESTION:

    Pass or Fail per NFPA 99 2012 Edition

     

     

    Since there was no piping changed, I don't see why the Piping Purity Test even applies.
  • Tuesday, June 27, 2017 6:55 AM
    Reply # 4919584 on 4890215
    Al Moon (Administrator)

    The question is based on a NEW MEDICAL AIR LINE, so testing is required.  

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