Specification for length bars and their accessories (imperial units).
STANDARD published on 31.1.1961
Designation standards: BS 1790:1961
Publication date standards: 31.1.1961
The number of pages: 26
Approximate weight : 78 g (0.17 lbs)
Country: British technical standard
Category: Technical standards BS
Length gauges of cylindrical bar type in four grades of accuracy; reference, calibration, inspection, workshop. Accuracy for sizes up to 48 in and metric sizes up to 1200 mm in all grades; two types of screwed connection, one a refined type developed by NPL for inspection bars. Design and accuracy for accessories used with workshop bars. Sets of inspection and workshop bars. Status: Confirmed Replaced by: Confirmed