![header thumbnail](/images/publishers\bsi_cover.gif)
BS 869:1978
Current
The latest, up-to-date edition.
![header thumbnail](/images/publishers\bsi_cover.gif)
Specification for toolmakers\' flats and high precision surface plates
Hardcopy , PDF
English
31-01-1978
Foreword
Cooperating organizations
Specification
1. Scope
2. References
3. Material
4. Features of design and recommended sizes
5. Finish
6. Accuracy
7. Cases for flats
8. Covers for plates
9. Preservation and packing
10. Marking
Appendix
A. Compositions of some typical steels and cast
irons and notes on the appropriate methods of heat
treatment
Tables
1. Dimensions of flats and plates
2. Tolerances
Figure
1. Toolmakers' flat showing recess in base and groove
round periphery
Access your standards online with a subscription
Features
-
Simple online access to standards, technical information and regulations.
-
Critical updates of standards and customisable alerts and notifications.
-
Multi-user online standards collection: secure, flexible and cost effective.