International Organization for Standardization (ISO)
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ISO/R 784:1968
Scope
The symbols given in tables have been classified in the following manner: - General conventional signs, - Pipes and pipe joints, - Valves and supply fittings. The general conventional signs concern symbols representing principal parts.
ISO/R 784:1968 history
1968ISO/R 784:1968 Conventional signs to be used in schemes for the installations of sanitary systems in ships