c.
Original copies of data produced, including results of each test
procedure during field testing, shall be turned over to the
Government at the conclusion of testing prior to Government
approval of the test.
d.
Testing shall not be scheduled during seasonal off-periods of
approved test procedures. The Test Procedures shall cover actual
equipment and functions specified for the project.
3.6.6.3
Hydrostatic Test
**************************************************************************
NOTE: Delete boiler isolation valve test for
single-boiler plants. This test is critical for
multiple-boiler plants as it verifies that
individual boilers can be isolated for maintenance
or replacement while the steam system is in
operation.
**************************************************************************
a.
General: The Contractor shall submit a written field hydrostatic
test schedule seven (7) days in advance to Contracting Officer for
approval.
b.
Contractor, after installation is completed and prior to startup,
shall furnish the services of local boiler and pressure vessel
and piping and certify that installation is in accordance with
ASME code.
c.
Following installation of piping and boiler plant equipment, but
before application of piping and boiler insulation, a hydrostatic
test shall be completed, including boiler and associated piping
within boiler plant. System shall be proved tight for at least
two hours under gauge pressure of 1.5 times the working pressure
specified and not less than the following:
[1. Low pressure lines up to 448 kPa 65 psig working - Test
pressure 590 kPa 100 psig.]
[2. Medium pressure from 448 to 690 kPa 65 to 100 psig, working -
test pressure 1.03 MPa 150 psig.]
MPa 225 psig.]
d.
Boiler isolation valves shall be individually tested to isolate
against the specified hydrostatic test pressure. At the
valves (steam discharge, boiler feedwater, etc.) shall be closed;
the boiler drained down; and pressure monitored on both sides of
each isolation valve for a minimum of two hours to verify that the
valves isolate each boiler.
e
Boilers shall be tested and piping connections inspected by a
certified boiler inspector for compliance with ASME BPVC SEC I.
SECTION 15561A
Page 104