COSHH Mock Test 2026
Test your knowledge of the COSHH Regulations with realistic multiple-choice questions on hazardous substances, risk assessment, control measures, and workplace exposure limits. Instant feedback and detailed explanations.
Topics covered in this test
- COSHH Regulations 2002 overview
- COSHH assessment requirements
- GHS hazard classification and pictograms
- Routes of exposure to hazardous substances
- Hierarchy of control measures
- Local exhaust ventilation (LEV)
- Workplace exposure limits (WELs)
- Health surveillance requirements
- Safety data sheets (SDS)
- Emergency procedures for chemical exposure
What is COSHH?
COSHH stands for Control of Substances Hazardous to Health. The COSHH Regulations 2002 require employers to assess the risks from hazardous substances in the workplace and implement appropriate controls to protect workers. This applies to chemicals, dusts, fumes, vapours, biological agents, and any other substance that can harm health.
Our free COSHH mock test covers the essential knowledge required for anyone who works with or near hazardous substances. Each question addresses a key aspect of the COSHH Regulations, from understanding safety data sheets and GHS pictograms to implementing the hierarchy of control and recognising workplace exposure limits.
This practice test is updated for 2026 and covers the current regulatory requirements. Whether you are preparing for a COSHH awareness course, revising for a workplace assessment, or refreshing your knowledge as part of your professional development, this test will help you identify the areas where you need to focus.
How to use this practice test
Click the Start Test button below to begin. You will see 15 questions covering the core topics of the COSHH Regulations. After selecting your answer, you get immediate feedback showing whether you got it right, along with a full explanation referencing the relevant regulations and HSE guidance.
COSHH awareness is required for all workers who may be exposed to hazardous substances. We recommend scoring above 80% on this practice test to demonstrate a solid understanding. Pay particular attention to the hierarchy of control and routes of exposure, as these are fundamental concepts.
Questions and answer positions are randomised every time you take the test, so you cannot memorise patterns. You can retake the test as many times as you like.
Ready? Start your free test
15 questions with instant feedback and detailed explanations after every question.
Frequently asked questions
Who needs COSHH training?
Anyone who works with or may be exposed to hazardous substances needs COSHH awareness training. This includes workers in construction, manufacturing, cleaning, healthcare, laboratories, agriculture, and any workplace where chemicals, dusts, fumes, or biological agents are present. Employers have a legal duty to provide this training.
What substances are covered by COSHH?
COSHH covers chemicals, products containing chemicals, fumes, dusts, vapours, mists, nanotechnology, gases, biological agents, and germs that cause diseases such as leptospirosis. Substances specifically excluded from COSHH have their own regulations: lead (CLAW 2002), asbestos (CAR 2012), and radioactive materials.
How often should COSHH assessments be reviewed?
COSHH assessments should be reviewed regularly and whenever there is a reason to believe the assessment is no longer valid. This includes changes in substances used, changes in work processes, new health and safety information, results of monitoring or health surveillance, or after an incident involving a hazardous substance.
