GSA A-A-2202 A-1997 STAKES WOOD《木支架》.pdf
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1、i INCH- POUND A-A- 2 2 02A October 2, 1997 SUPERSEDING A-A- 22 O2 June 7, 1990 COMMERCIAL ITEM DESCRIPTION STAKES, WOOD The General Services Administration has authorized the use of this commercial item description by all federal agencies. 1. SCOPE AND CLASSIFICATION 1.1 ScoDe. This commercial item
2、description (CID) covers location and hub stakes. Location stakes are intended for use in laying out foundations for buildings and other structures, and for trail marking. Hub stakes are intended for use in surveying applications such as land and building foundations. 1.2 Classification. as specifie
3、d (see 6.2) . The wood stakes shall be of the following type and length, Type I - Location marker Length - Inch (mm) 14 (356) 16 (406) 18 (457) 48 (1219) Type II - Hub, square cross-section Length - Inch (mm) 12 (305) 16 (406) 2. SALIENT CHARACTERISTICS 2.1 Material. Unless otherwise specified (see
4、6-21, the wood species shall be at the option of the manufacturer and of the type accepted within industry for the manufacture of these products. 2.2 Dressed dimensions. dimensions. The stakes shall be furnished in the following dressed Type I - Location stakes shall be 3/4 inch (19.0 mm) thick f 1/
5、16 inch (1.5 mm) and 1-1/2 inches (50.8 mm) I 1/8 inch (3.2 mm) wide. Type II - Hub stakes shall be 1-1/2 inches (38.1 mm) thick and 1-1/2 inches (38.1 mm) wide k 1/8 inch (3.2 mm) in each dimension. li i1 clarifications, etc. and any data which may improve this document11 /should be sent to: Genera
6、l Services Administration, Engineering11 IlBranch (7FXEE), 819 Taylor St., Fort Worth, TX 76102 II IlBeneficial comments, recommendations, additions, deletions, II II FSC 5510 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A- A- 2 2 02A 2.3 Surfaces
7、. Both types of stakes shall be smooth sawn or planed on not less than two sides. Type I - Location stakes shall be surfaced on the two wide faces. Type II - Hub stakes shall be surfaced on two opposite faces. 2.4 Pointed end. Type I - Location stakes shall be pointed on two sides. Type II - Hub sta
8、kes shall be pointed on four sides or shall have a conical end. The pointed ends of the stakes shall have straight or curved sides. The length of points measured along the stakes center line shall be 2-7/8 inches (73.0 mm) plus 1 inch (25.4 mm), minus O. The difference in length between the sides sh
9、all be 1/4 inch (6.3 mm) or less. Points shall be within 1/16 inch (1.5 mm) either side of center. Slightly blunt points shall be acceptable. 2.5 Cross crrain. Slope of grain shall not exceed 1 inch (25.4 mm) in 4 inches (101.6 mm) . 2.6 Workmanshir. The wood stakes shall not have pitch pockets or w
10、anes on the edges or corners greater than 1/4 inch (6.3 mm) in diameter. Splits shall not exceed the width of the face in which the split is located. Stakes shall be free from decay except decay confined to knots. Pointed ends shall be free from burrs, splinters, and tears. Type I stakes shall be fr
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