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What is an explosive hazardous area?

What is an explosive hazardous area?

Explosives hazardous areas occur where flammable liquids, vapors, gases or combustible dusts are likely to occur in quantities sufficient to cause a fire or explosion. Often, these atmospheres are created where gas, vapors, dusts and liquids are in contact with oxygen. Hazardous areas are divided into zones, where the probability of a hazardous atmosphere being present governs the explosion risk. Some areas are more hazardous than others, since it is more likely that there are gasses present. There are explosive gas atmospheres, explosive dust atmospheres, and the explosive atmospheres which may exist in coal mines.

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Where can you find hazardous areas?

Hazardous areas can occur in many industries and unexpected locations, including, but not limited to:

  • Automotive refueling stations or petrol stations
  • Oil refineries, rigs and processing plants
  • Chemical processing plants
  • Printing industries, paper and textiles
  • Hospital operating rooms
  • Pharmaceutical industry
  • Aircraft refueling and hangars
  • Surface coating industries
  • Underground coal mines
  • Sewerage treatment plants
  • Gas pipelines and distribution centers
  • Grain handling and storage
  • Woodworking areas
  • Sugar refineries
  • Metal surface grinding, especially aluminum dusts and particles

 

Sources: BARTEC TECHNOR and IECEx websites.

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