MIL-J-7093A (Weps)
4. 2 Quality Control. - The contractor's quality control system shall conform to the requirements of MIL-Q-9858. The contractor shall maintain average and range statistical control charts for each of the ballistic parameters outlined in 3.3.1 for all production units.
4. 3 Classificaiton of Inspections. - Inspection of the rocket motors shall be classified as follows:
(a) Preproduction evaluation (4.7)
(b) Production acceptance testing (4.8)
4. 4 Lot. - The lot shall consist of motors made from a single batch of propellant including no more than 30 motors.
4. 5 Sampling for Production Acceptance.
4.5. 7 Responsibility for Tests. - Unless otherwise specified, all tests specified herein shall be conducted by the supplier under cognizance of the cus- tomer or his duly authorized Government representative.
4.5. 2 Sampling and Tests.
(a) Initial sampling - First 1,000 motors
(b) Intermediate sampling - Next 2,000 motors
(c) Normal sampling - Balance of production
4.5.2. 1 Initial Sampling Schedule. - From the first 1,000 motors produced,
two motors of each lot shall be selected at random. The motors are to be conditioned and static fired (in accordance with 4.8.3); one at -75°F and one at 150°F.
4.5.2.1.1 Requirements. - Ballistic data obtained from the test firings shall meet the requirements of 3.3.1.
4.5.2.1.2 Nozzle Resizing. - When the results of the above test (4.5.2.1) do not meet the requirements (3.3.1) and it appears that the performance of the pro- pellant batch can be brought within limits by changing the nozzle throat diameter, one (1) additional lot test sample shall be fired with the revised nozzle throat diameter and at a temperature to be specified by the procuring agency. Satis- factory performance of this test shall qualify the lot for acceptance with the re-
vised nozzle size.
4.5.2.1.3 Test Results. - Prior to the initiation of the Intermediate Sampling
Schedule (4.5.2.2) the contractor shall furnish the procuring agency, for review
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