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Overview ISO 20383:2017 is an international standard developed by the International Organization for Standardization (ISO) that specifies the design and placement of Speed Identification Signs (SIS)…
Overview ISO 20383:2025 - Tractors and machinery for agriculture - Speed Identification Sign (SIS) defines a standardized visual identification system for the maximum specified ground speed of agricu…
1 Scope This document specifies the dimensions, characteristics, and positioning of Speed Identification Signs ( SIS ). These signs indicate the maximum equipment ground speed, based on the ground sp…