A-A-51131A
4.2 Sampling inspection. As a minimum sampling inspection, the supplier shall randomly select the number of samples in table IV that are applicable to the quantity of items being purchased. Each sample item shall be inspected to determine conformance with the examination In 4.3 and the dimensional inspection in 4.4. Should any of the samples fail to meet either the examination or inspection below, the entire lot shall be considered defective and unsuitable for acceptance. A lot is defined as all items of the same type, style, size, and class presented at one time for acceptance.
TABLE IV. Sampling plan.
|
Quantity of items being purchased |
Sample size |
Quantity of items being purchased |
Sample size |
|
2 to 8 |
2 |
91 to 150 |
20 |
|
9 to 15 |
3 |
150 to 280 |
32 |
|
16 to 25 |
5 |
281 to 500 |
50 |
|
26 to 50 |
8 |
501 to 1200 |
80 |
|
51 to 90 |
|
|
|
4.3 Examination. Each tool holder submitted for sample inspection shall be visually examined to determine conformance with all requirements of this description except the hardness tests.
4.4 Dimensional inspection. Each tool holder submitted for sample inspection shall be inspected to assure conformance with all dimensional and tolerance requirements specified herein.
4.5 Hardness test. After the sample inspection has been completed, a hardness test shall be performed on 10 per cent of the sample shanks and bar holding heads. If any of the test samples fail to meet the applicable hardness specified herein, the total lot from which the samples were selected shall be rejected.
4.6 Packaging inspection. Packaging shall be inspected for conformance with section 5.
5. PACKAGING.
5.1 Preservation, packing, and marking. Unless otherwise specified in the contract or purchase order preservation, packing, and marking shall be in accordance with ASTM D 3951. When specified (see 6.1) preservation, packing, and marking shall be in accordance with PPP-P-40, level as specified.
6. NOTES
6.1 Ordering data. Purchasers should select the preferred options permitted herein, and include the following information in procurement documents:
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