A-A-1898D
3.3 Physical properties. The cushioning material shall meet all of the requirements of this commercial item description. All tests, except the expansion test, shall be performed on fully expanded cushioning material.
3.3.1 Thickness. The measured thickness shall be not less than 85 percent of the nominal thickness (see 2.4) when tested as specified in 5.2.2.
3.3.2 Strain. The strain limit shall be not less than 50 or greater than 75 percent when tested as specified in 5.2.3.
3.3.3 Expansion. The cushioning material when longitudinally compressed shall expand not less than 4.8 times its compressed length without rupture of the plies when tested as specified in
5.2.4.
3.3.4 Absorbency capacity. The grade I cushioning material's water/fiber ratio shall be not less than 14 when tested as specified in 5.2.5. The grade II cushioning material's water/fiber ratio shall be not greater than 3, when tested as specified in 5.2.5.
3.3.5 Tensile Strength. The tensile strength in each direction shall be not less than that specified in table I, when tested as specified in 5.2.6.
TABLE I. Tensile strengths.
Nominal Thickness |
Low Strength Tensile |
Medium Strength Tensile |
High Strength Tensile |
25.4 mm (1.00′′) 19.1 mm (0.75′′) 12.7 mm (0.50′′) 9.4 mm (0.37′′) 6.4 mm (0.25′′) 5.1 mm (0.20′′) |
4.448N (1.00 lb) 3.336N (0.75 lb) 2.224N (0.50 lb) 1.646N (0.37 lb) 1.112N (0.25 lb) 0.890N (0.20 lb) |
26.689N (6.00 lb) 20.017N (4.50 lb) 13.345N (3.00 lb) 9.875N (2.22 lb) 6.672N (1.50 lb) 5.338N (1.20 lb) |
177.929N (40.00 lb) 133.447N (30.00 lb) 88.964N (20.00 lb) 65.834N (14.80 lb) 44.482N (10.00 lb) 35.586N (8.00 lb) |
* N - Newtons
4. REGULATORY REQUIREMENTS. The offeror/contractor is encouraged to use recovered materials in accordance with Paragraph 23.403 of the Federal Acquisition Regulation.
5. PRODUCT CONFORMANCE.
5.1 Product conformance. The products provided shall meet the salient characteristics of this commercial item description, conform to the producer's own drawings, specifications, standards, and quality assurance practices, and be the same product offered for sale in the commercial market. The Government reserves the right to require proof of such conformance.
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