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BSI
BS 969:2008

BS 969:2008

Current

Current

The latest, up-to-date edition.

Specification for limits and tolerances on plain limit gauges

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

31-08-2009

Publisher

British Standards Institution

Foreword
1 Scope
2 Terms and definitions
3 Gauge limits and tolerances
4 Hardness
5 Marking
6 Gauges in disagreement
Annexes
Annex A (informative) - Examples of the use of Table 1
Annex B (informative) - Principles of inspection using plain
        limit gauges
Annex C (informative) - Values for gauges in imperial units
Bibliography

Defines tolerances and limits for simple forms of limit gauges, such as cylindrical plain plug, ring and gap gauges, for which gauge limits have not been stipulated.

This British Standard specifies tolerances and limits for simple forms of limit gauges, such as cylindrical plain plug, ring and gap gauges, for which gauge limits have not been stipulated.

It specifies gauge tolerances for workpiece tolerances in the range between 0.009 mm and 3.200 mm and how gauge limits are related to the workpiece limits. It also specifies types of gauge according to size and minimum workpiece tolerance.

NOTE Where a workpiece tolerance is outside the range 0.009 mm to 3.200 mm, or if it is not possible to conform to Table 2 regarding type of gauge, gauge tolerance and workpiece size, direct measurement should be used.

The gauge tolerances specified are such that the size of any workpiece accepted by a gauge lies within the boundaries constituted by the workpiece limits. Furthermore, the magnitude of the gauge tolerances is consequent upon the amount of the workpiece tolerance only. A wear allowance is provided on all GO gauges, i.e. those that control the maximum material condition of the workpiece.

Committee
TPR/1
DevelopmentNote
Supersedes BS 969(1982) and 08/30177723 DC. (11/2008)
DocumentType
Standard
Pages
18
PublisherName
British Standards Institution
Status
Current
SupersededBy
Supersedes

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BS 1726-1:2010 Cylindrical helical springs made from round wire and bar. Guide to methods of specifying and tolerancing hot coiled springs, and cold coiled springs not covered by BS EN 15800, and general spring testing Compression springs
BS 1768:1963 Specification for Unified precision hexagon bolts, screws, & nuts (UNC & UNF threads). Normal series
BS 1916-1:2009 Limits and fits for engineering Guide to limits and tolerances

BS 1044-1:1964 Specificaton for gauge blanks Plug, ring and calliper gauges

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Hardcopy - English
PDF - English
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