TABLE D-I. Sample size series (SSS) sampling plan. 1/ 2/ 3/
Percent defective
allowable (PDA) /
Sample size series
50
30
8
20
11
15
10
7
5
3
2
1.5
1
0.7
0.5
0.3
0.2
0.15
0.1
Acceptance
number (C) (r = c + 1)
Minimum sample sizes
(For device-hours required for life test, multiply by 1000)
0
5
15 22 32 45 76 116
153
231
328
461
767
1152
1534
2303
(1.03)
(0.64) (0.46) (0.34) (0.23) (0.16) (0.11) (0.07) (0.04) (0.03)
(0.02)
(0.02)
(0.01) (0.007) (0.005) (0.003) (0.002)
1
8
13
18
25
38
55
77
129
195
258
390
555
778
1296
1946
2592
3891
(4.4)
(2.7)
(2.0)
(1.4)
(0.94) (0.65) (0.46) (0.28) (0.18) (0.14)
(0.09)
(0.06)
(0.45) (0.027) (0.018) (0.013) (0.009)
2
11
18
25
34
52
75
105
176
266
354
533
759
1065 1773 2662 3547 5323
(0.080) (0.045) (0.031) (0.022) (0.015)
1337 2226 3341 4452 6681
(0.10) (0.062) (0.041) (0.031) (0.018)
1599 2663 3997 5327 7994
(0.12) (0.074) (0.049) (0.037) (0.025)
1855 3090 4638 6181 9275
(0.14) (0.085) (0.056) (0.042) (0.028)
2107 3509 5267 7019 10533
(0.155) (0.093) (0.062) (0.047) (0.031)
2355 3922 5886 7845 11771
(0.17) (0.101) (0.067) (0.051) (0.034)
2599 4329 6498 8660 12995
(0.18) (0.108) (0.072) (0.054) (0.036)
2842 4733 7103 9468 14206
(0.19) (0.114) (0.077) (0.057) (0.038)
3082 5133 7704 10268 15407
(0.20) (0.120) (0.080) (0.060) (0.040)
(7.4)
(4.5)
(3.4)
(2.24)
(1.6)
(1.1)
(0.78) (0.46) (0.31) (0.23)
132 221 333 444
(1.0) (0.62) (0.41) (0.31)
158 265 398 531
(1.3) (0.75) (0.50) (0.37)
184 308 462 617
(1.4) (0.85) (0.57) (0.42)
209 349 528 700
(1.6) (0.94) (0.62) (0.47)
(0.15)
(7.59)
3
13
22
32
43
65
94
668
953
(10.5)
(6.2)
(4.4)
(3.2)
(2.1)
(1.5)
(0.20)
(0.14)
4
16
27
38
52
78
113
798
1140
(12.3)
(7.3)
(5.3)
(3.9)
(2.6)
(1.8)
(0.25)
(0.17)
5
19
31
45
60
91
131
927
1323
(13.6)
(8.4)
(6.0)
(4.4)
(2.9)
(2.0)
(0.28)
(0.20)
6
21
35
51
68
104
149
1054
1503
(15.6)
(9.4)
(6.6)
(4.9)
(3.2)
(2.2)
(0.31)
(0.22)
7
24
39
51
77
116
166
234
390
589
783
1178
1680
(16.6)
(10.2)
(7.2)
(5.3)
(3.5)
(2.4)
(1.7)
(1.0)
(0.67) (0.51)
(0.34)
(0.24)
8
26
43
63
85
128
184
258
431
648 864
(0.72) (0.54)
709 945
(0.77) (0.58)
770 1025
(0.80) (0.60)
832 1109
(0.83) (0.62)
890 1187
(0.86) (0.65)
948 1264
(0.89) (0.67)
1007 1343
(0.92) (0.69)
1086 1422
1300
1854
(18.1)
(10.9)
(7.7)
(5.6)
(3.7)
(2.6)
(1.8)
(1.1)
(0.36)
(0.25)
9
28
47
69
93
140
201
282
471
1421
2027
(19.4)
(11.5)
(8.1)
(6.0)
(3.9)
(2.7)
(1.9)
(1.2)
(0.38)
(0.27)
10
11
12
13
14
15
16
17
18
19
20
25
31
51
75
100
152
218
306
511
1541
2199
(19.9)
(12.1)
(8.4)
(6.3)
(4.1)
(2.9)
(2.0)
(1.2)
(0.40)
(0.28)
33
54
83
111
166
238
332
555
1664
2378
3323
5546
8319
11092 16638
(21.0)
(12.8)
(8.3)
(6.2)
(4.2)
(2.9)
(2.1)
(1.2)
(0.42)
(0.29)
(0.21)
(0.12) (0.083) (0.062) (0.042)
36
59
89
119
178
254
356
594
1781
2544
3562
5936 9804 11872 17808
(0.13) (0.086) (0.065) (0.043)
6321 9482 12643 18964
(21.4)
(13.0)
(8.6)
(6.5)
(4.3)
(3.0)
(2.2)
(1.3)
(0.43)
(0.3)
(0.22)
38
63
95
126
190
271
379
632
1896
2709
3793
(22.3)
(13.4)
(8.9)
(6.7)
(4.5)
(3.1)
(2.26) (1.3)
(0.44)
(0.31)
(0.22) (0.134) (0.089) (0.067) (0.045)
40
67
101
134
201
288
403
672
2015
2878
4029
6716
10073 13431 20146
(23.1)
(13.8)
(9.2)
(6.9)
(4.6)
(3.2)
(2.3)
(1.4)
(0.46)
(0.32)
(0.23) (0.138) (0.092) (0.069) (0.046)
43
71
107
142
213
305
426
711
2133
3046
4265 7108 10662 14216 21324
(0.235) (0.141) (0.094) (0.070) (0.047)
4497 7496 11244 14992 22487
(23.3)
(14.1)
(9.4)
(7.1)
(4.7)
(3.3)
(2.36) (1.41) (0.94) (0.71)
(0.46)
(0.33)
45
74
112
150
225
321
450
750
1124
1499
2249
3212
(24.1)
(14.6)
(9.7)
(7.2)
(4.8)
(3.37) (2.41) (1.44) (0.96) (0.72)
(0.48)
(0.337) (0.241) (0.144) (0.096) (0.072) (0.048)
47
79
118
158
236
338
473
788
1182
1576
2364
3377
4728
7880
11819 15759 23639
(24.7)
(14.7) (9.86) (7.36) (4.93) (3.44) (2.46) (1.48) (0.98) (0.74)
(0.49)
(0.344) (0.246) (0.148) (0.098) (0.074) (0.049)
50
83
124
165
248
354
496
826
1239
1652
2478
3540 4956 8260 12390 16520 24780
(0.351) (0.251) (0.151) (0.100) (0.075) (0.050)
3702 5183 8638 12957 17276 25914
(0.358) (0.256) (0.153) (0.102) (0.077) (0.051)
3864 5410 9017 13526 18034 27051
(0.364) (0.260) (0.156) (0.104) (0.078) (0.052)
4656 6518 10863 16295 21726 32589
(24.9)
(15.0) (10.0) (7.54) (5.02) (3.51) (4.96) (1.5)
(1.0)
(0.75)
(0.50)
52
86 130 173 259 370 518 864
1296
1728
2591
(25.5)
(15.4) (10.2) (7.76) (5.12) (3.58) (2.56) (1.53) (1.02) (0.77)
(0.52)
54
90
(15.6) (10.4) (7.82) (5.19) (3.65) (2.60) (1.56) (1.04) (0.78)
109 163 217 326 466 652 1086 1629 2173
135
180
271
386
541
902
1353
1803
2705
(26.1)
(0.52)
65
3259
(27.0)
(16.1) (10.8) (8.08) (5.38) (3.76) (2.69) (1.61) (1.08) (0.807) (0.538) (0.376) (0.269) (0.161) (0.108) (0.081) (0.054)
1/ Sample sizes are based upon the Poisson exponential binomial limit.
2/ The minimum quality (approximate acceptable quality level (AQL)) required to accept (on the average) 19 of 20 lots is shown in parenthesis for information only.
3/ Minimum size of sample to be tested to assure with a 90 percent confidence that a lot having percent-defective equal to the specified sample size series value will not be accepted (single sample).
ACTEL [ Actel Corporation ]
