REG A-A-2940 A-2002 YARDSTICK (WOOD AND ALUMINUM).pdf
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1、I INCH-POUND IA-A-2940AMarch 5.2002SUPERCEDINGA-A-2940December 15, 1995COMMERCIAL ITEM DESCRIPTIONYARDSTICK (WOOD AND ALUMINUM)The General Services Administration has authorized the use of this Commercial ItemDescription by all federal agencies.1. SCOPE. This Commercial Item Description covers yards
2、ticks used for general purpose measuring2, CLASSIFICATION. The yardsticks shall conform to the following types.2.1 . Wood2.2 Type 2. Aluminum.3. SALIENT CHARACTERISTICS.3.1 Twe 1. Yardstick shall be made of one piece, select, well-seasoned hardwood. The yardstick shallbe 36 inches (+/- 1/32) inch in
3、 length, a minimum of 3/1 6 inch thick, and 1 inch (+/- 1/32 inch) in width.Graduation lines shall be uniform in width and depth and tilled with a durable black material. Figuresshall be clear, permanent, free from ragged edges and breaks, and shall appear in a distinctive manner tobe legible under
4、all service conditions. One side shall be graduated in l/8-inch increments and numberedconsecutively for every inch. The opposite side shall be graduated and numbered at 1/16, 1/8, 1/4, 3/8,1/2, 5/8, 3/4, and 7/8 fractions of a yard and read from left to right. The out of parallel error betweenedges
5、 shall not exceed 1/64 inch in 36 inches. The end shall be within 1/2 degree of being square andhave flush-rigidly mounted, corrosion resistant metal, end caps on each end, not extending more than 1/4inch on to both faces. The yardstick shall be protected with a clear durable coating and may have a
6、holein the end for hanging purposes.3.2 Type 2. Yardstick shall be made of one-piece, tempered aluminum with a matt finish. The yardstickshall be 36 inches (+/- 1/32) inch in length, a minimum of 1/16 inch thick, and 1 inch (+/- 1/32 inch) inwidth. The yardstick shall have graduations on one side on
7、ly and both edges shall be in 1/16-inchincrements and numbered consecutively in inches. Graduation lines shall be straight, of uniform width,and of equal height. Figures shall be clear, permanent, fiee from ragged edges and breaks, and shallappear in a distinctive manner to be legible under all serv
8、ice conditions, The errorbetween any twograduationsshallnot exceed 1/64ofan inch.The out ofparallelerrorbetween edges shallnot exceed1/64inch in36 inchesand theend shallbe within 15 minutes ofbeing square.Graduations shallbeblack and durable. The yardstickshallbe eitheranodized orprotectedwith a cle
9、ardurablecoatingandmay have a hole intheend forhanging purposes.Beneficial comments, recommendations, additions, deletions, clarifications, etc. and any other datathat may improve this document should be sent to: General Services Administration, Federal SupplyService, Hardware SuperStore, 6FEE, 1500
10、 Bannister Rd., Bldg.# 6, Kansas City, Missouri. 64131.FSC 5210Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-2940A3.3 Identification marking. Each yardstick shall be marked in a plain and permanent manner with themanufacturers name or trademark
11、 of such known character that the source of manufacture may bereadily determined, part number, and country of origin.3.4 Workmanship. Details of workmanship shall be in accordance with the best commercial practices.Paints, coatings, plating, and finishes shall be smooth, adherent, continuous and not
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