EI Model code of safe practice Part 15:2015

Foreword
Key technical changes
Acknowledgements
Overview
1 Introduction
2 The technique of area classification
3 The point source approach for classification of individual
  sources of release
4 Effect of ventilation on area classification
Annexes
Annex A - Classification and categorisation of petroleum and
          flammable fluids
Annex B - Area classification for hydrogen
Annex C - Calculation of hazard radii
Annex D - The direct example approach for classification of common
          facilities in open areas
Annex E - Small-scale operations (laboratories and pilot plants)
Annex F - Background and examples on ventilation of enclosed areas,
          releases within enclosed areas and associated external
          hazardous areas
Annex G - Glossary
Annex H - References

This Model Code gives guidance on the classification of areas around equipment handling or storing flammable fluids, and provides a basis for both the correct selection of fixed electrical equipment and the location of other sources of ignition in those areas.