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Sampling for preproduction inspection |
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|  MIL-T-21578A
Sampling for preproduction inspection- Unless otherwise
4.3.1
specified, as soon as practicable after award of a contract or order, the contrac-
tor shall furnish a preproduction sample for inspection to determine conformance
with this specification. The preproduction sample shall consist of one complete
hazardous location test equipment system on contract or order. The sample shall
be identified with the manufacturer's part number and contract number and shall
be inspected as specified herein and in accordance with the contract or order (see
6. 2).
4.4
Quality conformance inspection - The quality conformance
inspection shall consist of individual inspection only,
4.4.1
Individual inspection - Each test equipment system on the
contract or order shall be subjected to the following inspection in the order listed.
Any test equipment system containing a defect or failing to pass any of these tests
shall be rejected.
(4. 6.1)
(a) Examination
(b) Operation
(4. 6.2)
(4, 6.3)
(c) Correlation
4.5
Test conditions - Unless otherwise specified, tests shall be
conducted at an ambient temperature of 77 18 F and at an ambient barometric
pressure of 28 to 32 inches of mercury. If tests are conducted at different ambient
conditions, appropriate correction factors shall be applied to the flow and pres-
sure readings.
Test fluids - Test stands shall be tested using the type fluid
4. 5.1
as specified on the f low meter calibration scales.
Inspections methods -
4.6
Examination - The test equipment system shall be thoroughly
4.6.1
examined to determine conformance with this specification and applicable drawings
with respect to all the requirements not covered by tests.
4.6. 1.1
The test equipment system shall be examined to ascertain
that the preparation for delivery conforms to this specification.
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