This document covers the positioning of safeguards with respect to the approach speeds of parts of the human body. This standard specifies parameters based on values for hand/arm and approach speeds and provides the methodology to determine the minimum distances from detection zones or actuating devices of protective equipment to a hazard zone. This standard specifies distances from the detection zone to the hazardous area. Protection against the risks from mechanical hazards arising from the ejection of solid or fluid materials and non-mechanical hazards such as toxic emissions, electricity, radiation etc. are not covered by this standard.