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BS 939:1977 | 30 Sep 1977 | BSI Knowledge
Standard
Withdrawn
BS 939:1977
Specification for engineers' squares (including cylindrical and block squares)
Published:
30 Sep 1977
•
Withdrawn:
31 Oct 2007
Overview
Preview
References
History
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Product Details
Descriptors
Smoothness (surface)
Precision
Roughness (surface)
Hardness
Angular measurement
Test equipment
Dimensions
Dimensional measurement
Flatness (surface)
Marking
Accuracy
Cylindrical shape
Blocks
Dimensional tolerances
Steels
Design
Squares (instruments)
ICS Codes
17.040.30 Measuring instruments
Committee
MTE/1
International relationships
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ISBN
0 580 09626 2
Publisher
BSI