MIL --- PRF --- 51526B
TABLE II. Sampling
Inspection level and samples sizes
Lot size
I
II
III
IV
V
VI
VII VIII
IX X XI
2 to 8
*
*
*
*
*
*
*
*
5 3 2
9 to 15
*
*
*
*
*
*
13
8
5 3 2
20
13
16 to 25
*
*
*
*
*
8
5 3 3
13
20
26 to 50
*
*
*
*
32
8
5 5 5
13
50
20
51 to 90
*
*
*
32
8
7 6 5
13
50
20
91 to 150
*
*
125
32
12
11 7 6
20
50
20
13 10 7
151 to 280
*
*
125
32
19
29
50
47
16 11 9
281 to 500
*
315
125
48
21
34
75
47
19 15 11
501 to 1200
*
315
125
73
27
* Asterisk means 100% inspection of lot. Accept the lot if there are zero non-
-
conforming characteristics and reject the lot if there are one or more non- conforming
-
characteristics for all inspection levels.
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