DSEAR: Dangerous Substances and Explosive Atmospheres
This awareness course introduces the Dangerous Substances and Explosive Atmospheres Regulations 2002 (DSEAR) and HSE's Approved Code of Practice L138. You will learn what dangerous substances are, how explosive atmospheres form, how risks are assessed and controlled, what hazardous area zones and the EX sign mean, and how to control ignition sources and respond to emergencies. It does not replace practical training, competence or your employer's procedures.
- Modules
- 4
- Duration
- About 40 minutes
- Pass mark
- 80%
- Assessment
- 10 questions from a bank of 17
Learning outcomes
- ✓Explain the purpose of DSEAR and identify common dangerous substances at work.
- ✓Describe how the fire triangle applies to fires and explosive atmospheres.
- ✓Outline the DSEAR risk assessment and the order in which control measures should be applied.
- ✓Interpret hazardous area zones for gases, vapours and dusts and the EX warning sign.
- ✓Control ignition sources and follow safe storage and emergency arrangements.
Course contents
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Module 1: Dangerous Substances and the Law
Video (4 scenes) · 2 lessons · 2 practice questions
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Module 2: Fire, Explosions and Risk Assessment
Video (4 scenes) · 2 lessons · 3 practice questions
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Module 3: Controlling the Risks
Video (4 scenes) · 2 lessons · 2 practice questions
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Module 4: Zones, Equipment, Storage and Emergencies
Video (4 scenes) · 2 lessons · 2 practice questions
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Final assessment & certificate