BS 958:1968
Current
The latest, up-to-date edition.
Specification for spirit levels for use in precision engineering
Hardcopy , PDF
English
22-03-1968
Cooperating organizations
Foreword
Specification
1. Scope
2. Sensitivities
3. Nomenclature and definitions
4. General features of design
5. Recommended scale and indication of sensitivity
6. Adjustments
7. Finish and accuracy of working surfaces
8. Accuracy of performance
9. Case
10. Protection against climatic conditions
11. Marking and manufacture
Appendices
A. Choice of sensitivity of a level
B. Testing of precision levels
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