DIN EN 999:1998-12

Foreword
Introduction
1 Scope
2 Normative references
3 Definitions
4 Methodology
5 General formula for the calculation of
  minimum distances
6 Calculation of minimum distances for
  electro-sensitive protective equipment employing
  active opto-electronic protective devices
  6.1 Direction of approach normal to the detection zone
  6.2 Direction of approach parallel to the detection zone
  6.3 Direction of approach angled to the detection zone
  6.4 Dual position equipment
7 Method of calculating the minimum
  distances for ground level trip devices
  7.1 General method
  7.2 Floor mounting
  7.3 Step mounting
8 Two-hand control devices
Annex A (informative) Worked examples
Annex B (informative) Walking speeds
         and stride lengths
Annex ZA (informative) Relationship between
         this European Standard and the Essential
         Requirements of EU Directive 98/37/EC
Annex ZB (informative) Relationship between
         this European Standard and the Essential
         Requirements of EU Directive 2006/42/EC
National Annex NA (informative) Bibliography

Gives parameters based on values for hand/arm and approach speeds and the methodology to determine the minimum distances from specific sensing or actuating devices of protective equipment to a danger zone.