A-A-209B
5.2 Examination and Testing:
5.2.1 Suppliers are encouraged to use quality control (QC) techniques that exhibit control over their processes, e.g. (Statistical Process Control SPC techniques), as defined in American National Standards Institute (ANSI) Z1.1, Z1.2 and Z1.3/ American Society for Quality Control (ASQC) B.1, B.2, B.3 that systematically reduce excess variations. Objective evidence shall be available that demonstrates overall measurement adequacy techniques and controls. These techniques shall ensure quality levels equal to or, greater, those cited in applicable technical document or herein.
5.2.2 End item inspection/testing may be used by end offeror or the Government representative, as a means to determine the effectiveness of the in process quality controls. In process controls shall not be substituted for end item performance testing.
5.2.3 For those characteristics for which there are no such controls, or for end item performance test, lot by lot sampling for inspection/test shall be required. The sample unit shall be either one bottle or container. Sampling shall be in accordance with the American National Standards Institute (ANSI)/American Society for Quality Control (ASQC) Z1.4, Sampling Procedures and Tables for Inspection by Attributes.
5.2.4 An inspection lot shall consist of all like items submitted for inspection at one time. The inspection level for visual examination shall be S-4 with an AQL of 4.0 percent defective. The inspection level for performance tests shall be S-1 with an AQL of 4.0 percent defective. The supplier must provide objective evidence (test and inspection records) that the presented material meets the requirements of the sampling plan as indicated above.
6. Performance Test:
6.1 Drying Time Type I & Type II. impressions shall be made from fabric pads, foam latex rubber pads, or foam plastic pads (Type I) or wooden pads (Type II) with clean rubber stamps on test paper in accordance with A-A-2804A, Type III white bond paper having a pH of 5.0 with a basis weight of 60 grams per square meter (16 pound, 17x22-500). A tolerance of 5% is allowable. Test paper shall have an additional requirement of 160-140seconds maximum smoothness on both sides using the Sheffield method per the most current TAPPI T538 test method. Alternately, paper conforming to JCP-O-60 can be used as an alternate source. After 30 seconds the impressions shall be sufficiently dry not to smear when rubbed lightly with index finger, or when ink is transferred to another sheet of test paper when ten (10) sheets are laid on top of the impression.
6.2 Stability. The fabric, foam latex rubber, foam plastics or wooden pads used in testing drying time shall be exposed, uncovered, in a atmosphere of 73.4oF + 3.6o for 3 days and 50 + 5% relative humidity (the use of a desiccator or chamber which does not allow for the even exchange of air shall be prohibited). The impressions made from the exposed pad shall dry as quickly and be at least as sharp and intensely colored as the impressions made before exposure. There shall be no swelling of the foam latex rubber pad.
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