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Homepage>BS Standards>01 GENERALITIES. TERMINOLOGY. STANDARDIZATION. DOCUMENTATION>01.060 Quantities and units>BS 2856:1973 Precise conversion of inch and metric sizes on engineering drawings
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immediate downloadReleased: 1973-10-08
BS 2856:1973 Precise conversion of inch and metric sizes on engineering drawings

BS 2856:1973

Precise conversion of inch and metric sizes on engineering drawings

CURRENCY
LANGUAGE
English
Standard number:BS 2856:1973
Pages:16
Released:1973-10-08
ISBN:0 580 07752 7
Status:Standard
DESCRIPTION
This standard BS 2856:1973 Precise conversion of inch and metric sizes on engineering drawings is classified in these ICS categories:
  • 01.100.01 Technical drawings in general
  • 01.060 Quantities and units
  • 17.040.10 Limits and fits

Provides a procedure for the conversion of inch and metric sizes on engineering drawings which will give the essential accuracy required for precise dimensional interchangeability. The standard gives specific guidance on the optimum fineness of rounding the converted size, and recommends a procedure for conversion which takes the form of simple rules covering successive steps in the conversion. Examples of the application of the rules are given for a variety of cases. Tables of conversion from inches to millimetres, and vice versa, are included in an appendix to facilitate the work.
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