scope:

This specification covers detail requirements for drafting scales graduated in the English and metric systems of measurement.

Scales covered by this specification shall be identified by a type designation number (see 6.2) formed as indicated in GG-S-161. The type designation number is intended for cataloging and ordering purposes and not for printing on the scales. Sub-paragraphs 1.2.1.3 through 1.2.1.10 indicate the options available for the type IV scale and are further identified in GG-S-161.

Spec. No. GG-S-161.

Type of scales - IV.

Shape of scales - −1, −2, or −3.

Composition of scales - −A, −B, −C, −D, −E, −F, or −G.

Grade of scales - −1 or 2.

Size of scales - −B, −D, or −F.

Scale graduations - −1.

Numbering of scales - A.

Style of scales - −A, −B, or −C (see 3.2).

Type of sheath required −1, −2, −3, −4, −5, or −6.

intended Use:

Combination scales are used for marking English and metric system measurements.