TABLE 3
CROSS-CONNECTION TEST PRESSURES
System
psig
Vacuum
10
Nitrogen
30
Nitrous Oxide
40
Oxygen
50
Medical Air
60
3.2.9
Medical Air Compressor and Vacuum Pump Tests by Testing Agency
Operationally test each unit through their respective pressure and capacity
ranges. Test control operations from start-up, low through high speeds,
shut-down and emergency functions and safety limits. Check each unit for
conformance with the indicated or specified performance requirements. Test
medical air from compressor dryer/filter systems for contaminants in
accordance with paragraph entitled "Medical Air Purity, Contaminate Levels,
and Test Methods."
3.2.10
Bulk Liquid Oxygen System Tests by Testing Agency
Check and operate the systems for conformance with NFPA 50 and NFPA 99, the
manufacturer's written performance specifications, and the indicated and
specified requirements.
3.2.11
Component Tests by Testing Agency
Test system controls, alarms, pressure switches, and equipment operations.
Verify the flow rate accuracy of each pressure reducing regulator.
3.2.12
Final Purging and Testing by Testing Agency
Use 414 to 448 kPa (gage) 60 to 65 psig, oil-free dry nitrogen to purge and
clean medical air, oxygen, nitrogen, and nitrous oxide system 24 hours
continuously for a minimum of 24 hours. Allow purge nitrogen to impinge
upon a white cloth at a minimum flow rate of 100 liters per minute 3.50 cfm,
until no evidence of discoloration is present and test gas used during the
previous gas test has been removed from the piping systems. Bleed source
gas for a minimum of one minute continuously through each terminal copper
piping installed, as specified. After completion of purging and cleaning,
completely remove temporary piping, adaptors, and connectors.
3.2.13
System Contaminant Level Tests by Testing Agency
3.2.13.1
Test Gases
After final purging and cleaning, use test gases as specified in paragraph
entitled "Test Gas Purity, Contaminate Levels, and Test Methods," and
provided by the Government, to test for contamination in medical air,
oxygen, nitrogen, and nitrous oxide systems. For medical air system tests,
use medical air as test gas specified in paragraph entitled "Medical Air
Purity, Contaminate Levels, and Test Methods." Minimum flow rate of test
gas shall be 100 liters per minute.
SECTION 15217N
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