EN ISO 13857:2008

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Safety distances to prevent access by upper and lower limbs
  4.1 General
  4.2 Safety distances to prevent access by upper limbs
  4.3 Safety distances to prevent access by lower limbs
Annex A (informative) - Use of Tables 1 and 2 with intermediate
        values
Annex B (informative) - Distances to impede free access by lower
        limbs
Annex ZA (informative) - Relationship between this International
         Standard and the Essential Requirements of EU
         Directive 98/37/EC
Annex ZB (informative) - Relationship between this International
         Standard and the Essential Requirements of EU
         Directive 2006/42/EC
Bibliography

ISO 13857:2007 establishes values for safety distances in both industrial and non-industrial environments to prevent machinery hazard zones being reached. The safety distances are appropriate for protective structures. It also gives information about distances to impede free access by the lower limbs. It covers people of 14 years and older (the 5th percentile stature of 14 year olds is approximately 1 400 mm). In addition, for upper limbs only, it provides information for children older than 3 years (5th percentile stature of 3 year olds is approximately 900 mm) where reaching through openings needs to be addressed.