MIL-DTL-55023D
3.11 Instruction handbook. An instruction handbook shall be supplied with each
manometer. When specified (see 6.2), the supplier shall furnish the additional quantity of
handbooks specified in the contract. The handbook shall contain operating instructions, drawing,
illustrations, parts list, and safety precautions to ensure proper operation and maintenance of the
manometer. The handbook shall also include a list of indicating fluids for use with the
manometer, with the specific gravity and the freezing or congealing point of each fluid and
factors for converting scale readings in inches to pressure in psig.
3.11.1 Conversion factor table. A conversion factor table, independent of the
instructions handbook, shall be furnished with each manometer. The table shall comprise the
conversion factors of 3.11 and shall be imprinted or otherwise indelibly inscribed on a plate or
card, suitable for attaching to a surface in the proximity of the manometer.
3.12 Workmanship. Workmanship shall be of the highest grade in accordance with good
commercial practice for this type of equipment.
4. VERIFICATION
4.1 Classifications of inspection. The inspection requirements specified herein are
classified as follows:
a. First article inspection (see 4.2)
b. Conformance inspection (see 4.3)
4.2 First article inspection. First article inspection shall be performed on one of each
type, size, and style manometer when a first article sample is required (see 3.2). This inspection
shall include the examination of 4.4 and tests of 4.5. The first article may be a standard
production item from the supplier's current inventory provided the manometer meets the
requirements of this specification and is representative of the design, construction, and
manufacturing technique applicable to the remaining manometers to be furnished under the
contract.
4.3 Conformance inspection. The conformance inspection shall include the examination
of 4.4 and the tests of 4.5.
4.3.1 Inspection lot. A lot shall consist of all manometers of the same type, size, and
style offered for delivery to the Government at one time under a specific contract.
4.3.2 Sampling for examination. A random sample of manometers shall be selected from
each lot in accordance with inspection level II of ANSI Z1.4.
4.3.3 Sampling for tests. A random sample of manometer shall be selected from each lot
in accordance with ANSI Z1.4 at inspection level S-2.
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