MIL-DTL-23661B(OS)
TABLE II. Quality conformance sample size.
Lot size
Sample size
Retained sample
66 to 110
15
*
111 to 180
15
*
181 to 300
20
*
301 to 500
25
*
501 to 800
30
*
801 to 1300
35
*
1301 to 3200
40
*
3200 to 8000
50
*
8001 to 22,000
75
*
* Quantity to be specified in the contract.
4.5 Tests.
4.5.1 Insulation resistance. Prior to assembly of the bridgewire in the body and spacer assembly, the
insulation resistance shall be checked with a 500-volt megohmmeter. Units with a resistance of less than 2
megohms shall be cause for rejection.
4.5.2 Smokeless powder, condition. Smokeless powder shall be inspected in accordance with the applicable
paragraphs of OP 5. Evidence of decomposition shall be cause for rejection.
4.5.3 Visual examination. All cartridges shall be visually examined. Cartridges having any of the defects of
3.11.3 shall be cause for rejection. The preservation-packaging, packing, and marking of the cartridges shall
be examined for conformance to section 5 and the contract (see 6.5).
4.5.4 Bridgewire resistance. Conformance with the bridgewire circuit resistance of 3.11.1 shall be
ascertained on all completely assembled cartridges by means of a test circuit which limits the bridge circuit
current to 50 milliamperes, maximum. A safety chamber with an interlock switch shall be used to protect the
operator during the application of current. A suitable instrument which is known to be accurate to within
0.005 ohm in the range of resistance specified shall be used to determine whether or not the requirement is
being met. Units which fail to meet the requirement of 3.11.1 shall be cause for rejection. The results of
bridge circuit resistance measurements shall not be affected by resistance of the test circuit and connector.
4.5.5 Radiographic examination. All cartridges, in the first article and production test samples, shall be
radiographically examined in accordance with ASTM E 1742. Cartridges having any observable
imperfections in assembly shall be cause for rejection. The cartridges shall be positioned on their sides for the
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