DOD A-A-54756-1992 BANDAGE FELT ORTHOPEDIC (COTTON)《整形外科的毡绷带(棉花)》.pdf
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1、A-A-5475b 65 D 9999974 0091802 139 I INCH-POUND I A-A-54 7 5 6 30 September 1992 COMMERCIAL ITEM DESCRIPTION BANDAGE, FELT, ORTHOPEDIC (COTTON) The General Services Administration has authorized the use of this Commercial Item Description. Salient Characteristics: The finished bandage shall be suita
2、ble for padding under orthopedic casts, shall be capable of adhering to itself, shall conform to the contour of the body or limb to which applied and shall not slip or roll up under casts nor cause constriction of tourniquet effect. Bandages shall be of the following sizes: - SIZE 1 2 3 4 WIDTH f+/-
3、 1/8 INCH) 2 3 4 6 The finished bandage shall have an unstretched length of four yards when made from the plain materiel and shall have a stretched length of four yards when made from the creped and compacted material. The finished bandage shall be one continuous piece. Bandages shall be nonwoven co
4、tton felt made from fully bleached purified new or reworked fine filament cotton. During fabricated cotton fibers shall be physically locked and entangled. Material shall meet the requirements for Purified Cotton, USP, for the following: 1. Residue on ignition, except that residue shall not exceed 0
5、.50 percent 2. Water soluble substances, except that the residue shall not exceed 0.75 percent. FSC 6510 DISTRIBUTION STATEMENT A. distribution is unlimited. Approved for public release; Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-5Lt75b b5 =
6、 9999974 0071803 075 A-A-5 4 7 5 6 3. Absorbency. 4. The cotton from which the material is made shall meet the requirements of Purified Cotton, USP, for fatty matter. The material shall be either plain or shall be creped and compacted. The plain material shall have a plain surface and shall have a m
7、inimum weight of 55 grams per square yard and a minimum average weight of 71 grams per square yard after fabrication of the bandage. The creped and compacted material shall have a rippled surface and shall have a minimum weight of 33 grams per square yard and a minimum average weight of 58 grams per
8、 square yard after fabrication of the bandage. The weights shall be measured by method 5041 of Federal Test Method Standard No. 191. Convert to grams per square yard. The material shall have a pH of 5.0 to 7.0 and shall be all cotton and shall not contain any binders or fillers. Ply adhesion (shear
9、strength). The plain material shall have a minimum average of 25grams with no individual test result less than 18 gram and the creped and compacted material shall have a minimum average of 100 grams with no individual test result less than 90 grams when tested as follows. Condition samples for 24 ho
10、urs at 70 2 2O F and 50 2 2 percent RH. Ten tests shall be performed comprising twenty samples cut 2 by 7 inches with the 7 inches cut in the machine direction. Superimpose one sample over the other so that there is a 5 inch overlap. Ply the samples together using a hand roller. Center the roller on
11、 the sample and slowly roll the overlapped area back and forth one time without exerting any added pressure when rolling. Only the weight of the 4.5 pound roller shall be on the sample. The hand operated roller shall meet the requirements of the Pressure Sensitive Tape Council Standards Appendage B.
12、 Immediately test samples after rolling by clamping the free end of each ply in the tensile machine jaws and pull (shear) the samples apart. The tensile machine shall be a constant-rate-of-extensiom machine using a load cell. The tensile machine shall be capable of measuring one gram and shall be ac
13、curate within 2 2%. The crosshead speed shall be 12 inches per minute. The diameter of the finished roll shall be 2-1/8 2 1/4 inch for the plain material and 2-3/4 2 1/4 inch for the creped and compacted material. Rolls shall be measured at two places 90 from each other, then averaged. Bandages shal
14、l be free of dirt, other foreign matter, lumps and cuts. Bandages shall be evenly rolled. 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-c A-A-5 4 7 5 6 Workmanship. The bandages shall be free from their defects which detract from their appearance
15、 or impair their serviceability. Unit. Package (PG). For Sizes 1, 2 and 3, one package containing 72 bandages, as specified, constitutes one unit. For Size 4, one package containing 36 bandages, as specified, constitutes one unit. Quality Assurance Provisions. Responsibility for inspection. Unless o
16、therwise specified in the contract or purchase order, the contractor is responsible for the performance of all inspection requirements as specified herein. Except as otherwise specified in the contract or purchase order, the contractor may use his own or any facilities suitable for the performance o
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