PPP-C-1120D
3. REQUIREMENTS
3.1 First article. When specified (see 6.2), samples shall be subjected to first article inspection in accordance with 4.2.
3.2 Material (see 6.4).
3.2.1 Cushioning material. The cushioning material shall consist of a fibrous filler and a binding material which shall bind the fiber into a coherent resilient form.
3.2.2 Filler material. The filler material shall consist of vegetable fiber or synthetic fiber and shall be clean and free of foreign matter. There is no exclusion to the use of recovered materials provided the finished product meets the requirements of this specification (see 6.4).
3.2.3 Binding material. With the exception of natural latex rubber, the binding material shall not contain protein or starch. The supplier shall certify the absence of protein or starch.
3.3 Form. The cushioning material shall be furnished uncompressed in flat sheets, rolls, or molded forms (see 6.2).
3.3.1 Molded forms. Special dynamic compression resistance requirements and detailed dimensions for molded forms shall be as specified in procurement documents. In addition, all relevant requirements of this specification apply to molded forms.
3.3.2 Sheet and roll dimensions. The width, length, and thickness of flat sheets or rolls shall be as specified in 6.2.
3.3.2.1 Dimensional tolerances.
3.3.2.1.1 Width. The width of sheets and rolls shall be within 3 percent or ¼ inch, whichever is larger, of the specified width.
3.3.2.1.2 Length. The length of sheets shall be within 5 percent or ½ inch, whichever is larger, of the specified length. The length of any individual roll shall be not less than 95 percent of the specified length, and the average length of all rolls in any lot shall be not less than the specified length.
3.3.2.1.3 Thickness. For sheet or roll, the thickness shall be within plus or minus 15 percent of the specified thickness when measured under a static load of 0.025 psi.
3.4 Physical properties. When tested as specified in 4.5, the material shall comply with the physical property requirements listed in table I.
3.5 Color coding. The material in roll or sheet form shall be identified according to type by color coding. Either uniform dispersion of color in the binding material or color stripes shall be
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