NBN EN 14458 : 2004

Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Classification
  4.1 General use
  4.2 Firefighters' use
  4.3 Mesh
5 Performance requirements
  5.1 General
  5.2 Requirements for general use
  5.3 Additional requirements for firefighters' use
  5.4 General requirements for mesh visors
  5.5 Optional requirements
6 Testing
  6.1 Nominal values and tolerances
  6.2 Conditioning and sample numbers
  6.3 Visual inspection
  6.4 Practical performance test
  6.5 Electrical properties tests
  6.6 Radiant heat resistance test
  6.7 Radiant heat protection test
  6.8 Flammability test for firefighters' visors
  6.9 Resistance to extremes of temperature test for
       firefighters' visors
  6.10 Test for resistance to chemicals
7 Marking
  7.1 General
  7.2 Markings on visor
  7.3 Markings on means of fixing
8 Information
Annex A (normative) Taber abrasion resistance test method
      A.1 Apparatus
      A.2 Preparation of test pieces
      A.3 Test method
      A.4 Calculation and interpretation of results
Annex B (informative) Equipment list
      B.1 General
      B.2 Equipment list - firefighters
      B.3 Equipment list - Emergency teams/ambulance service
Annex C (informative) Uncertainty of measurement
      C.1 Test report and uncertainty of measurement
Annex ZA (informative) Relationship between this European Standard
         and the Essential Requirements of EU Directive 89/686/EEC

Applicable to visors designed specifically to be fitted to and/or used with helmets conforming to EN 443 when used by firefighters, or helmets which conform to EN 443 or prEN 14052 when used by ambulance and emergency services, as the situation dictates.