DLA A-A-52025-1991 LEVELS SURVEYING ABNEY TYPE《阿贝型水平测量仪》.pdf

1、 A-A-52025 66 m 9999974 0060337 4 m 1 INCH-POUND 1 A-A-52025 February 4, 1991 COMMERCIAL ITEM DESCRIPTION LEVELS, SURVEYING: ABNEY TYPE The General Services Administration has authorized the use of this commercial item description in preference to Federal specification GG-L-260E. This description co

2、vers two types of Abney surveying levels used for. measuring land slope in degrees or percent of grade and for topographic surveying. Salient characteristics. Design: The Abney level shail consist of a sighting tube, an arc plate, an index arm, a bubble vial and two interchangeable graduated scale a

3、rcs. drive to adjust the index arm and bubble vial simultaneously, and a knurled knob locking mechanism to hold their position after adjustment, will support the level in an upright position, and a stud or ring for attachment of a neck strap. carrying case. with a belt loop. 2-inch web belt. The cas

4、e closure flap shall have a fastener to keep the case closed. fasten a bubble vial adjusting tool inside the case. The Abney level shall have a nonslip mechanical or friction The Abney level shall have a flat bottom surface, which Each Abney level shall. be supplied with a The carrying case shall be

5、 a close fitting container The opening or the belt loop shall accommodate a The carrying case shall have a provision to securely Classification: The Abney surveying levels shall be of the following types. Type I - With a glass reflector of transparent float, plate or sheet glass of select mirror qua

6、lity. Type II - With a metal reflector of polished chromium plating. Beneficial comments, recommendations, additions, deletions, clarifications, etc. and other data which may improve this document should be sent by letter to: Commander, U.S. Army Belvoir Research, Development and Engineering Center,

7、 ATTN: STRBE-TSE, Fort Belvoir, VA 22060-5606. AMSC N/A FSC 6675 DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. Licensed by Information Handling ServicesF- A-A-52025 bb 9999974 0060338 b A-A-52025 Mat er ia1 s Metal. Metal parts shall be brass or aluminum, except t

8、hat the interchangeable arcs shall be aluminum, corrosion-resistant steel, or nickel silver. Glass. Glass used in the half lens shall be of optical quality, free of imperfections that distort or impair the field of view or focus. Fabric. Fabric used in the case shall be leather, artificial leather,

9、natural or plastic. The fabric shall not deposit any of its finish on the Abney level. Finish: The Abney level shall be free of defects such as sharp edges, burrs, cracks, dents or other defects that could impair the serviceability of the Abney level. The eyepiece of the Abney level shall have round

10、ed edges or, any surface that will contact thz user. Certification of commercial item. The contractor shall certify that the product offered to the Government meets the salient characteristics of this description and that the product conforms to the producers own drawings, specifications, standards,

11、 and quality assurance practices and is thc same product as the manufacturers current product offered by the contractor in the commercial marketplace for at least one year preceding the solicitation. The Government reserves the right to require proof of such conformance prior to first delivery and t

12、hereafter as may be otherwise provided for under the provisions of the contract, Metric productc_. Products manufactured to metric dimensions will be considered on an equal basis with those manufactured using inch-pound units, provided they fall within the tolerances specified using conversion table

13、s contained in the latest revision of FED-STD-376, and all other requirements CII this commercial item description are met. If a product is manufactured to metric dinensionc and thosc dimensionc escec. the tolerances specified in the inch/pounJ units, c request should be mal: tb the contracting offi

14、cer to determine if the product is acceptable. The contracting officer has the option of accepting or rejecting the product Quality assurance: The Abney levels shall be examined for the following defects. Presence of one or more defects shall be cause for rejection. 1. Design not as specified. 2. Ty

15、pe not as specified. 3. Material not as specified. h. Finish not as specified. 5. Packaging and marking not as specified 2 Licensed by Information Handling ServicesA-A-52025 bb = 9999974 00b0319 8 Regulatory requirements. In accordance with section 23.403 of the Federal Acquisition Regulations, the

16、Governments policy is to acquire items composed of the highest percentage of recovered materials practicable, consistent with maintaining a satisfactory level of competition without adversely affecting performance requirements or exposing the suppliers employees to undue hazards O I from the recover

17、ed materials. A-A- 52025 Preservation, packaging, packing. labelinn. and marking. The preservation, packaging packing, labeling, and marking shall be as specified in the contract or order, CID based part identification number. The following part identification numbering procedure is for Government p

18、urposes and does not constitute a requirement for the contractor, Part or identifying number (PIN). type surveying levels shall be as follows: The part or identifying number for Abney A 00000 - XX I CID Document identifier Type I Notes. 1. Purchaser should specify type required. 2. When the commerci

19、al item description is used for acquisition, the commercial item certification must appear in the solicitation, FED-STD-376 is available from the Standardization Documents Order Desk, Building 4D, 700 Robbins Avenue, Philadelphia, PA 19111-5094.) MILITARY INTEREST: Custodians Army - ME Navy - YD Review activity DLA - GS CIVIL AGENCY COORDINATING ACTIVITIES: GSA-FSS USDA - AFS Preparing activity : Army - ME User Activities Army - CE Navy - MC 3 Pro j ect 6675 - 0894 Licensed by Information Handling Services