erection superintendent. Provide bulk liquid oxygen systems with a
shut-off valve, and a connection point with valve for portable emergency
oxygen supply in accordance with NFPA 99. Connection fittings are to be
sealed for maintaining cleanliness after testing.
3.1.6
Electrical Work
Comply with NFPA 70 and Section 16402 INTERIOR DISTRIBUTION SYSTEM. Ground
metal piping systems. Provide electric motor driven equipment specified
herein complete with motors, motor starters, and controls. Provide motor
starters complete with thermal overload protection and other appurtenances
necessary for the motor control specified. Provide manual or automatic
control and protective devices required for the operation of equipment.
3.2
FIELD QUALITY CONTROL
The Contracting Officer will witness field tests. For field testing by
testing agency, the Contractor shall provide a qualified testing agency as
specified in Part 1, paragraph entitled "QUALITY ASSURANCE." The
Contractor shall give the Contracting Officer 14 days prior notice for
dates and times for acceptance tests.
3.2.1
Agency Testing
Tests for contaminants are required for new medical gas systems or existing
systems which are modified, repaired, or replaced.
3.2.2
Sample Bottles
When gas sample bottles are to be used, the bottles are to be supplied by
the testing agency, sealed and ready for use, and filled and labeled in
accordance with the agency's written instructions.
3.2.3
Test Instruments
Provide vacuum gages with 2 kPa one inch Hg increments, readable to one kPa
1/2 inch Hg. Provide pressure gages with 2 kPa (gage) one psig
increments, readable to one kPa (gage) 1/2 psig. Use only correct adapters
for gages. Do not use universal adapters.
3.2.4
Pressure Test Gases
During initial purging, blowing out, and pressure testing, use only
oil-free dry nitrogen conforming with CGA G-10.1, Grade F, except that
hydrocarbons and halogenated hydrocarbons shall not exceed the limits in
Table 4, "Test Gas Purity, Contaminate Levels, and Test Methods." Use no
other gas, material, or liquid during purging and tests.
3.2.5
Outlet Adapters
Use only correct adapters for specified medical gas outlets.
Do not use
universal adapters.
3.2.6
Positive Pressure Tests
Test only one system at a time. Test each joint with soap solution, repair
leaks found, and retest. In the systems not being tested, install pressure
gages, bleed to zero pressure, and seal. Investigate the cause of
significant pressure rise in the systems not being tested.
SECTION 15217N
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