Working with hazardous substances can, as the name suggests, be hazardous. Extra caution should be taken and appropriate Personal Protective Equipment (known for short as PPE) should be provided. PPE could be in the form of gloves, overalls, goggles, masks or whatever other equipment is necessary to make the job as safe as possible and to protect workers from harm.
Governing this area of law is the Control of Substances Hazardous to Health Regulations 2002 (COSHH). Substances hazardous to health can include chemicals, products containing chemicals, fumes, dust, vapours, gases, germs etc. These substances are covered by COSHH but things like asbestos and radioactive substances are covered by alternative Regulations. COSHH is covered extensively by the Health and Safety Executive on their website.
Some substances have exposure limits. This obviously means that exposure to that substance whether it is through breathing in fumes or by skin contact etc is limited. With some tasks a permit to work may be required to carry out a certain task which involves some contact or potential exposure to hazardous substances. A permit to work would be based on a risk assessment to ensure that all potential risks and precautions are taken.
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