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|  MIL-G-47316A (MI)
4.5 Quality conformance inspection. Quality conformance inspections shall be
as specified in table II (see 4.2).
TABLE II. Quality conformance inspection.
Inspection
Requirement paragraph
Test paragraph
Workmanship
3.4
4.6.1
Apparent density
3.3.1
4.6.2
4.5.1 Lot formation. The sample selected shall consist of a random selection
of 10 percent of the lot but not less than one block or billet, as specified in the contract
or order (see 6.2). A lot shall consist of graphite of one shape produced by one
manufacturer, in one unchanged process, using the same materials and methods and
offered for acceptance at one time. The lot size shall be not greater than 100 blocks or
billets.
4.5.2 Sampling. The sample selected shall represent only that quantity of units
from which the sample was drawn and shall not be construed to represent any prior or
subsequent quantities presented for inspection. The sample shall be subjected to
inspections specified in tables II and III.
TABLE III. Sample inspection.
Inspection
Requirement paragraph
Test paragraph
Specific resistance
3.3.2
4.6.3
Flexural strength
3.3.3
4.6.4
Ash content
3.3.4
4.6.5
4.6 Methods of inspection.
4.6.1 Examination. Unless otherwise specified, samples shall be visually
examined with an unaided eye to determine conformance to 3.4.
4.6.2 Apparent density. Apparent density shall be determined in accordance
with the following to determine conformance to 3.3.1:
a. Measure each dimension of the full block or billet to the nearest
0.03 inch in three or more places.
b. Average each dimension and calculate the volume of the block or
billet based on the average dimensions.
c. Weigh the block or billet to the nearest 0.25 pound.
6
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