A-A-54553
The mask shall be essentially rectangular in shape, measuring, when new, and with tucks extended, approximately 7 inches, plus or minus 1/2 inch in nose, mouth and chin dimensions (referred to as length) and approximately 7-1/4 inches plus or minus 1/4 inch in the cheek to cheek dimension (referred to as width). The length of the finished mask with the tuck unextended shall be approximately 3-5/8 inches plus or minus 2/8 inch.
The mask shall be either white or green. If green, the gauze, tie tabs, binding tape and thread shall be a uniform, grayish-green. The color of the fabric in the mask shall be obtained by vat-dyeing and shall show good fastness after 15 hospital launderings.
The use of dyes and compounds containing elementary sulfur capable of oxidation to sulfuric acid is prohibited.
The mask shall be free from abrasion marks, cuts, holes, tears, weak or soft spots, loose threads, and broken yarns. Shrinkage shall be 2 percent or less when tested in accordance with American Association of Textile Chemists and Colorists (AATCC) 135, Method IIIB. Yarn count shall be 180 yarns per square inch in accordance with ASTM D1910.
Workmanship. The surgical mask shall be free from defects which detract from its appearance or impair its serviceability.
Unit. Package (PG). One package containing one hundred and twenty masks, as specified, constitutes one unit.
QUALITY ASSURANCE PROVISIONS.
Responsibility for inspection. Unless otherwise 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 contact or purchase order, the contractor may use his own or any facilities suitable for the performance of the inspection requirements specified herein, unless disapproved by the Government. The Government reserves the right to perform any of the inspections set forth in the specification where such inspections are deemed necessary to assure supplies and services conform to prescribed requirements.
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