MIL-DTL-24487B (SH)
TABLE V. Conformance inspection.
Examinations, measurements, and tests
Specimens selection
Requirement
Test
Performed on tiles:
Specific gravity
Note 2
3.2
4.5.2
Hardness
Note 1
3.2
4.5.3
Adhesion
Note 2
3.2
4.5.7
Thickness
Note 2
3.4
4.4.1
Weight
Note 1
3.5
4.4.2
Identification
Note 1
3.8
4.4
Workmanship
Note 1
3.9
4.4
Performed on rubber sheets:
Initial tensile strength and ultimate elongation
1 rubber sheet
3.2
4.5.4.1
1
All tiles selected at random from the lot as specified in Table VI shall be used for this inspection.
2
One tile selected at random from the sampling specified in Table VI shall be used for this inspection.
4.3.1 Lot. A lot shall consist of all the tiles offered for delivery at one time. In each case the number of
tiles shall be the lot size.
4.3.2 Sampling for non-destructive inspection. Random samples of tiles shall be selected in accordance
with Table VI from each lot for non-destructive inspection.
TABLE VI. Sampling for non-destructive inspection.
Lot size number of tiles
Sample size number of tiles
1 to
4
All
5 to
9
5
10 to 25
8
26 to 62
13
63 to 160
20
161 to 410
32
411 to 1,000
50
1,001 to 2,600
80
4.3.3 Sampling for destructive inspection. The following specimens shall be provided for destructive
inspection. This inspection need not be performed if the lot is rejected on the basis of the non-destructive inspection
performed in accordance with 4.4.
a. One tile taken at random from those selected in accordance with 4.3.2.
b. Three sheets of the rubber compound, each 6 by 6 inches (15 by 15 cm) by 0.080 ± 0.010 inch (0.20
± 0.025 cm) thick. The rubber sheets shall have been made from the same rubber compound as the
production tiles and have an equivalent cure.
4.4 Non-destructive inspection. Each of the tiles furnished in accordance with 4.3.1 or selected in
accordance with 4.3.2 shall be examined to determine major and minor defects. Identification of visible defects
shall be in accordance with MIL-STD-407. The dimension, weight, and hardness of each tile shall be determined as
specified in 4.4.1, 4.4.2, and 4.5.3, respectively. Defective tiles shall not be offered for delivery. The tiles shall
conform to the applicable requirements in section 3. Defects in tiles found by non-destructive observations and
measurements shall be graded in accordance with Table VII.
6
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