MIL-P-46067B(MR)
4.2.2.1.3 Inspection levels and acceptable quality levels (AQLs) for examinations. The inspection levels for determining the sample size and the acceptable quality level (AQL) expressed as defects per 100 units shall be
as follows:
Examination paragraph Inspection level AQL
4.4.2.1.1
4.4.2.1.2
II
S-2
2.5
2.5
4.2.3 classification of tests. All tests under this specification shall be classified as lot acceptance tests. They shall be made on each lot of material offered against this specification and, in conjunction with the above examination, shall be the basis of acceptance or rejection of the lot.
4.2.4 Testing. The material shall be tested for the applicable characteristics listed in table I in accordance with the test methods specified herein. The lot size, for the purpose of determining the sample size for testing (see MIL-STD-105) shall be expressed in units of 22.6 kg (50 pounds). The sample unit shall consist of sufficient material to prepare all required specimens. The inspection level shall be S-1, with an acceptance number of 0. The results for each test shall be averaged results of the specimens, except where only one determination is required.
4.3 Test methods.
4.3.1 Viscosity of liquid resin. The viscosity of the liquid resin without hardener shall be determined in accordance with ASTM 2393 at a temperature of
25 0.5 c (77 0.9 F). conditioning shall be at 25 0.5 c (77 0.9 F) for a minimum of 16 hours prior to testing. The Brookfield RVF viscometer shall employ spindle #1 at 10 revolutions per minute for composition 1, and spindle #4 at 4 revolutions per minute or spindle #5 at 10 revolutions per minute for compositions 2 and 3. One determination shall be made.
4.3.2 Weight per epoxy equivalent. The weight per epoxy equivalent shall be determined in accordance with ASTM D 1652. Two determinations shall be made.
4.3.3 Specimen curing, conditioning, and testing. Specimens of epoxy embedding compound shall be cured at 25 5 c (77 9 F) for a minimum of 7 days, and conditioned in accordance with procedure A of ASTM D 618. Testing
of specimens shall be at 23 2 c (73.4 3.6 F) and 50 5 percent relative humidity, except for ash content determination (see 4.5.6).
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