EN 13921:2007

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Factors to be considered on general specification of
  ergonomic requirements
  4.1 General
  4.2 Integration of performance and ergonomic requirements
  4.3 Factors to be considered in the determination of the
      best ergonomic solution
      4.3.1 General
      4.3.2 Factors to be considered in specifying the optimum
            level of protection to be provided
      4.3.3 Factors to be considered in specifying the optimal
            practicability
      4.3.4 Factors for measuring the physiological impact of PPE
  4.4 Factors to be considered in specifying requirements for the
      adjustability of PPE and its appropriate fixation to the body
  4.5 Factors to be considered in specifying requirements to ensure
      that PPE does not irritate or cause discomfort
  4.6 Factors to be considered in specifying requirements to take
      into account the anthropometric factors of PPE
  4.7 Factors to be considered in specifying requirements to take
      into account the biomechanical characteristics of PPE
      4.7.1 General
      4.7.2 Mass distribution
      4.7.3 Restriction and prevention of movements
      4.7.4 Abrasion or compression of the skin and underlying
            structures
      4.7.5 Exacerbation of vibration
  4.8 Factors to be considered in specifying requirements to take
      into account the thermal characteristics of PPE
      4.8.1 General
      4.8.2 Thermal characteristics of materials and complete PPE
  4.9 Factors to be considered in specifying requirements to take
      into account the sensory effects of PPE
      4.9.1 General
      4.9.2 Vision
      4.9.3 Hearing
      4.9.4 Taste or smell
      4.9.5 Touch or other skin contact
5 Verification procedure for compliance with ergonomic
  characteristics
  5.1 General approach
  5.2 Selecting an appropriate type of test
  5.3 Assessment of the anthropometric characteristics of PPE
      and their impact on the wearer
  5.4 Assessment of the biomechanical characteristics of PPE and
      their impact on the wearer
      5.4.1 General
      5.4.2 Mass
      5.4.3 Restriction of movement
      5.4.4 Compression
      5.4.5 Vibration
  5.5 Assessment of the thermal characteristics of PPE and their
      impact on the wearer
      5.5.1 General
      5.5.2 Possible test methods for thermal characteristics
  5.6 Assessment of the sensory characteristics of PPE and
      their impact on the wearer
      5.6.1 General
      5.6.2 Visual aspects of PPE
      5.6.3 Auditory aspects of PPE
      5.6.4 Smell or taste aspects of PPE
      5.6.5 Skin contact aspects of PPE
Annex A (informative) Ergonomic assessment of PPE using panels
        of test subjects
  A.1 Introduction
  A.2 Principle
  A.3 Wearer trials
  A.4 Duration of tests
  A.5 Test of thermal impact
      A.5.1 General
      A.5.2 Task
      A.5.3 Subjects
      A.5.4 Subject safety
      A.5.5 Measurements
Annex ZA (informative) Relationship between this European Standard
         and the Essential Requirements of EU Directive 89/686
Bibliography

This European Standard provides guidance on the generic ergonomic characteristics related to personal protective equipment (PPE).It specifies for the writers of PPE product standards, principles relating to:anthropometric characteristics related to PPE;the biomechanical interaction between PPE and the human body;the thermal interaction between PPE and the human body;the interaction between PPE and the human senses: vision; hearing; smell and taste; and skin contact.This European Standard does not cover requirements related to the specific hazard for which PPE is designed.