DLA A-A-59269 A-1999 SCALES DRAFTING AND SCALES PLOTTING [Superseded DLA GG-S-161 D CANC NOTICE 1 DLA GG-S-161 D SUPP 1 DLA GG-S-161 D DLA GG-S-161 C (2) DLA GG-S-161 C (1) DLA GG-.pdf
《DLA A-A-59269 A-1999 SCALES DRAFTING AND SCALES PLOTTING [Superseded DLA GG-S-161 D CANC NOTICE 1 DLA GG-S-161 D SUPP 1 DLA GG-S-161 D DLA GG-S-161 C (2) DLA GG-S-161 C (1) DLA GG-.pdf》由会员分享,可在线阅读,更多相关《DLA A-A-59269 A-1999 SCALES DRAFTING AND SCALES PLOTTING [Superseded DLA GG-S-161 D CANC NOTICE 1 DLA GG-S-161 D SUPP 1 DLA GG-S-161 D DLA GG-S-161 C (2) DLA GG-S-161 C (1) DLA GG-.pdf(5页珍藏版)》请在麦多课文档分享上搜索。
1、INCH-POUNDA-A-59269A26 August 1999SUPERSEDING(See Section 7.)Beneficial comments, recommendations, additions, deletions, clarifications, etc. and any otherdata which may improve this document should be sent to: Defense Supply Center Richmond(DSCR), ATTN: DSCR-VBD, 8000 Jefferson Davis Highway, Richm
2、ond, VA 23297-5610.AMSC N/A FSC 6675DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited.COMMERCIAL ITEM DESCRIPTIONSCALES, DRAFTING AND SCALES, PLOTTINGThe General Services Administration has authorized the use of thiscommercial item description for all federal agencies.
3、1. SCOPE. This commercial item description (CID) covers the requirements for eight types ofdrafting and plotting scales for measuring and laying out linear dimensions.2. CLASSIFICATION. The drafting scales shall be classified by the types listed below. Theselected type of scale to be supplied shall
4、be specified in the acquisition order (see 7.3(b).Type I - Scale, drafting: architects 12-inchType II - Scale, drafting: architects 18-inchType III - Scale drafting: combination English and metric measurement systemType IV - Scale, drafting: surveyorsType V - Scale, plottingType VI - Scale, plotting
5、: plotting and draftingType VII - Scale, plotting: metricType VIII - Scale, plotting: meters and yards3. SALIENT CHARACTERISTICS3.1 Types. The types of scales shall be as specified herein.Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-59269A23.1
6、.1 Type I. Type I scale shall have one edge fully divided into one-sixteenth inch, each inchdirect or boustrophedon numbered. The other edges shall be double divided in the followingcombinations: three-thirty seconds inch and one-eighth inch; three-sixteenths inch and one-quarter inch; three-eighths
7、 inch and one-half inch; three-quarters inch and one inch; one and one-half inches, and three inch divisions. The end unit of each full graduation of open-dividedarchitects scale shall be divided as follows: three-thirty seconds inch and one-eighth inch, sixdivisions; three-sixteenths inch, one-quar
8、ter inch and three-eighths inch, twelve divisions; one-halfinch; three-quarters inch, twenty-four divisions, numbered at three, six, and nine, or unnumbered;one inch, one and one-half inches, forty-eight divisions, numbered at three, six and nine; and threeinches, ninety-six divisions, numbered at t
9、hree, six, and nine. Type I scale shall have the followingshape: six bevels, triangular, facet or concave. It shall be made of wood with plastic facings. Type I scale shall be furnished in 12-inch nominal lengths.3.1.2 Type II. Type II scale shall have one edge fully divided into one-sixteenth inch,
10、 each inchdirect or boustrophedon numbered. The other edges shall be double divided in the followingcombinations: three-thirty seconds inch and one-eighth inch; three-sixteenths inch and one-quarter inch; three-eighths inch and one-half inch; three-quarters inch and two inch; one and one-half inches
11、, and three inch divisions. The end unit of each full graduation of open-dividedarchitects scale shall be divided as follows: three-thirty seconds inch and one-eighth inch, sixdivisions; three-sixteenths inch, one-quarter inch and three-eighths inch, twelve divisions; one-halfinch; three-quarters in
12、ch, twenty-four divisions, numbered at three, six, and nine, or unnumbered;one and one-half inches and two inches, forty-eight divisions, numbered at three, six and nine; andthree inches, ninety-six divisions, numbered at three, six, and nine. Type II scale shall have thefollowing shape: six bevels,
13、 triangular, facet or concave. It shall be made of wood with plasticfacings. Type II scale shall be furnished in 18-inch nominal lengths.3.1.3 Type III. Type III scale shall be fully divided, with one edge divided to a minimum readingof 0.5 millimeter, with every centimeter numbered. The other edge
14、shall be divided into 12inches, subdivided into thirty-seconds of an inch, with each inch numbered. Type III scale shallhave the following shape: Two bevels, flat, opposite (parallelogram). It shall be made of woodwith plastic facings. Type III scale shall be furnished in 30-centimeter nominal lengt
15、hs.3.1.4 Type IV. Type IV scale shall be fully divided to 1,000 parts per foot on one edge and to0.5 millimeters on the other edge. Scales shall be numbered at each tenth of a foot and at eachcentimeter. Type IV scale shall have the following shape: Two bevels, flat, same side (trapezoid).It shall b
16、e made of wood with plastic facings. Type IV scale shall be furnished in 12-inchnominal lengths.3.1.5 Type V. Type V scale shall be direct numbered, with scale graduations open divided. TypeV scale shall be divided in meters on both edges, graduated at 1:25,000 and 1:50,000. The scaleratio shall be
17、marked as a representative fraction. In addition, the scale ratio may also be markedin words and figures. Type V scale shall have the following shape: Two bevels, flat, same side(trapezoid). It shall be made of wood with plastic facings. Type V scale shall be furnished in 30-centimeter nominal lengt
18、hs.Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-59269A33.1.6 Type VI. Type VI scale shall be open divided, with four plotting and two drafting edges. All scales shall be numbered direct, with every 1,000th unit of plotting scales and every sin
19、gle unitof the drafting scales numbered. Plotting scales shall have 1,000 units and drafting scales one unitto the left of the zero mark. Plotting scales shall have every 500th unit graduated. The first edgeshall be graduated in yards at 1:25,000, with 7,000 yards to the right of the zero. The two 5
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