Technically yes—for legacy systems. But for any new design, ISO 1219-1 is withdrawn. You risk non-compliance during an audit or when submitting tenders for EU or international projects.
: Speeding up design handovers and maintenance by using recognized, language-independent symbols. CAD Integration Iso 14617-3 Pdf
The ISO 14617-3 PDF document provides detailed information on: Technically yes—for legacy systems
: Quick-release couplings, connectors, connection joints, ISO ports, and terminals. Functional Connections and terminals. Functional Connections