 |
|||
|
Page Title:
Table III. Quality conformance sample size. |
|
||
| ||||||||||
|
|  MIL-I-82877
Test
Test method
Number of samples
Visual
4.6.1
All samples
Resistance
4.6.2
All samples
Radiographic
4.6.3
All samples
Leakage
4.6.4
All samples
Functional at -89F, +70F, and
4.6.10
1/3 sample at each temperature
+250F
4.5.1 Lot size. The production lot size shall be as specified in the contract (see 6.2). The minimum
lot size shall be 51 units and the maximum lot size shall be 500 units.
4.5.2 Sampling. Unless otherwise specified (see 6.2), sampling shall be in accordance with table III.
The additional retained sample shall be for investigative purposes.
TABLE III. Quality conformance sample size.
Lot Size
Test Sample
Retained Sample
51-90
12
3
91-150
21
3
151-280
32
6
281-500
50
6
4.6 Methods of inspection.
4.6.1 Visual examination. Each ignition element shall be visually examined for compliance to the
requirements of 3.2, 3.3.2 and 3.6.
4.6.2 Resistance test. The bridge circuit resistance test shall be performed on each ignition element
by applying a current of no more than 50 milliamperes to the ignition element circuit. A suitable
instrument known to be accurate within 4 X 10-4 ohms shall be used to determine if the ignition element
meets the requirement of 3.3.3. Any ignition element not meeting resistance requirements shall be
considered defective. Defective ignition elements shall be discarded.
4.6.3 Radiographic examination. All assembled ignition elements shall be radiographically
examined in accordance with MIL-STD-453. Any observable imperfections in components or assembly
shall be cause for rejection. The ignition elements shall be positioned for the most revealing exposure
with the long axis of each assembly perpendicular to the rays of the X-ray machine. All ignition elements
shall be identified with serial numbers prior to examination. The serial numbers shall be in consecutive
order and each radiograph shall carry a permanent identification of the cartridges displayed thereon. The
radiograph identification shall include item nomenclature, the complete lot number assigned to that lot,
6
|
|
Privacy Statement - Press Release - Copyright Information. - Contact Us |
Click
here for thousands of PDF manuals