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GG-T-621C
TRANSIT, ONE-MINUTE; AND TRANSIT TRIPODS
Organization:
GSA - FSS - Federal Supply Service
Year: 1985
Abstract: This specification covers one-minute transits and tripods for use with transits.
Transits shall be of the following classes, as specified (see 6.2):
Intended Use: The transits are intended for use in surveying operations. Class A covers an instrument of minimum weight, small dimensions, and compactness for use where those factors are of essential importance consistent with the required accuracy. Class B covers an instrument of medium weight and dimensions for use where transportation is not a critical problem or where circles larger than class A are desirable. Class C covers an instrument of maximum weight and dimensions for use where transportation facilities are readily available or where a higher order of refinement in determination of angular values is required.
Transits shall be of the following classes, as specified (see 6.2):
Class A - Small, lightweight; mountain or mining transits. Class B - Average size and weight; engineer's and city transits. Class C - Maximum size and weight; surveyor's traverse and triangulation transits.
Intended Use: The transits are intended for use in surveying operations. Class A covers an instrument of minimum weight, small dimensions, and compactness for use where those factors are of essential importance consistent with the required accuracy. Class B covers an instrument of medium weight and dimensions for use where transportation is not a critical problem or where circles larger than class A are desirable. Class C covers an instrument of maximum weight and dimensions for use where transportation facilities are readily available or where a higher order of refinement in determination of angular values is required.
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| contributor author | GSA - FSS - Federal Supply Service | |
| date accessioned | 2017-09-04T18:17:39Z | |
| date available | 2017-09-04T18:17:39Z | |
| date copyright | 31369 | |
| date issued | 1985 | |
| identifier other | HPOTDAAAAAAAAAAA.pdf | |
| identifier uri | http://yse.yabesh.ir/std;query=authoF2377D8669B749A/handle/yse/200405 | |
| description abstract | This specification covers one-minute transits and tripods for use with transits. Transits shall be of the following classes, as specified (see 6.2): Class A - Small, lightweight; mountain or mining transits. Class B - Average size and weight; engineer's and city transits. Class C - Maximum size and weight; surveyor's traverse and triangulation transits. Intended Use: The transits are intended for use in surveying operations. Class A covers an instrument of minimum weight, small dimensions, and compactness for use where those factors are of essential importance consistent with the required accuracy. Class B covers an instrument of medium weight and dimensions for use where transportation is not a critical problem or where circles larger than class A are desirable. Class C covers an instrument of maximum weight and dimensions for use where transportation facilities are readily available or where a higher order of refinement in determination of angular values is required. | |
| language | English | |
| title | GG-T-621C | num |
| title | TRANSIT, ONE-MINUTE; AND TRANSIT TRIPODS | en |
| type | standard | |
| page | 23 | |
| status | Active | |
| tree | GSA - FSS - Federal Supply Service:;1985 | |
| contenttype | fulltext |