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// CODE SNIPPET

1318.13 Category 3 Dental Air and Nitrogen Supply, Systems Purge Tests

California Plumbing Code 2019 > 13 Health Care Facilities and Medical Gas and Medical Vacuum Systems > 1318.0 Testing and Inspection > 1318.13 Category 3 Dental Air and Nitrogen Supply, Systems Purge Tests
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The purge tests for dental air and nitrogen supply systems shall be conducted as follows:
  1. The outlets in each Category 3 dental air and nitrogen supply piping system shall be purged to remove any particulate matter from the distribution piping.
  2. The test gas shall be oil-free, dry nitrogen NF or the system gas.
  3. Each outlet shall be purged with an intermittent high-volume flow of test gas until the purge produces no discoloration in a clean white cloth.
  4. The purging shall be started at the furthest outlet in the system and proceed toward the source equipment. [NFPA 99:5.3.12.2.8]

Related Code Sections


1318.13 Health Care Facilities and Medical Gas and Medical Vacuum Systems, Category 3 Dental Air and Nitrogen Supply, Systems Purge Tests
The purge tests for dental air and nitrogen supply systems shall be conducted as follows: The outlets in each Category 3 dental air and nitrogen ...
California Plumbing Code 2019 > 13 Health Care Facilities and Medical Gas and Medical Vacuum Systems > 1318.0 Testing and Inspection > 1318.13 Category 3 Dental Air and Nitrogen Supply, Systems Purge Tests
1309.3.8 Health Care Facilities and Medical Gas and Medical Vacuum Systems, Nitrogen Purge
regulators alone shall not be used to control purge gas flow rates. [NFPA 99:5.1.10.4.5.4, 5.3.6.8.5]     For Category 3 systems ...
California Plumbing Code 2016 > 13 Health Care Facilities and Medical Gas and Medical Vacuum Systems > 1309.0 Joints and Connections > 1309.3 Brazed Joints and Fittings > 1309.3.8 Nitrogen Purge
1309.8 Health Care Facilities and Medical Gas and Medical Vacuum Systems, Nitrogen Purge
When brazing, joints shall be continuously purged with oil-free, dry nitrogen NF to prevent the formation of copper oxide on the inside surfaces ...
California Plumbing Code 2019 > 13 Health Care Facilities and Medical Gas and Medical Vacuum Systems > 1309.0 Joints and Connections > 1309.8 Nitrogen Purge
1319.9 Health Care Facilities and Medical Gas and Medical Vacuum Systems, Purge Tests
or inlet within the zone. [NFPA 99:5.1.12.2.5.2] Exception: For Category 3 medical gas piping systems, purging shall start at the furthest outlet ...
California Plumbing Code 2016 > 13 Health Care Facilities and Medical Gas and Medical Vacuum Systems > 1319.0 Testing and Inspection > 1319.9 Purge Tests
1313.7.1 Health Care Facilities and Medical Gas and Medical Vacuum Systems, Category 3 Dental Air
Receivers shall have the following: The capacity to prevent short-cycling of the compressor(s) Compliance with Section VIII, "Unfired Pressure ...
California Plumbing Code 2019 > 13 Health Care Facilities and Medical Gas and Medical Vacuum Systems > 1313.0 Medical Air Supply Systems > 1313.7 Medical Air Receivers > 1313.7.1 Category 3 Dental Air
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