Published
Specifies graphical symbols for diagnostic testers: marking of controls, indicators and tell-tales; use for indications on screens, and similar variable indicating systems; marking of connections and other input and output openings. Tabulates the terms and functions in English and French together with the graphical symbols of concern.
PUBLISHED
SRPS ISO 7639:1999
90.20
Standard under periodical review
Apr 15, 2026
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