BS 3509:1962
Current
The latest, up-to-date edition.
Specification for spirit level vials
Hardcopy , PDF
English
01-06-1962
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Foreword
Specification
Section one. General
1. Scope
2. Definitions
3. Materials
Section two. Graduation marks
4. Straight cylindrical vials
5. Bent cylindrical vials
6. Circular vials
Section three. Dimensions
7. Straight cylindrical vials
8. Bent cylindrical vials
9. Circular vials
Section four. Performance
10. Straight cylindrical vials
11. Bent cylindrical vials
12. Circular vials
Appendices
A. Recommended method of testing
B. Recommendations for standard mounts
C. Metric-inch conversions
Specifies dimensional, constructional and performance requirements for a range of spirit level vials - both cylindrical and circular - and describes a recommended method of testing. Also included is a series of recommended vial mounts.
| Committee |
TPR/1
|
| DevelopmentNote |
Reviewed and confirmed by BSI, January 2010. (12/2009)
|
| DocumentType |
Standard
|
| Pages |
24
|
| PublisherName |
British Standards Institution
|
| Status |
Current
|
1. This British Standard deals in detail with the various sizes and performance requirements for both precise and coarse spirit level vials. Ranges of parameters of spirit level vials for use in precision surveying, inspection and general levelling instruments are related to the sensitivity, and preferred sets of parameters for given sensitivities are indicated. In Appendix A is given a recommended method of testing vials and recommendations are made in Appendix B for preferred forms of mounting.
| BS 958:1968 | Specification for spirit levels for use in precision engineering |
| BS 350:2004 | Conversion factors for units |
| BS 958:1941 | Precision levels for engineering workshops |
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