BS EN 1861:1998
Current
The latest, up-to-date edition.
Refrigerating systems and heat pumps. System flow diagrams and piping and instrument diagrams. Layout and symbols
Hardcopy , PDF
English
15-12-1998
Foreword
Introduction
1 Scope
2 Normative references
3 Definitions
4 Classification, information content and
presentation
5 Layout of diagrams
6 Selection of graphical symbols
Annex A (informative) Examples of flow diagrams for
refrigerating systems
Annex B (informative) Letter code, general symbols and
examples of measurement and control symbols
Annex C (informative) Bibliography
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