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COSHH Assessments + Safety Data Sheets
How you control hazardous substances at work, using the COSHH assessment and the safety data sheet together.
COSHH covers chemicals, dusts, fumes, vapours, gases and many biological agents. The employer must assess the risk from how the substance is actually used, stored and disposed of, then prevent exposure or control it so far as is reasonably practicable. A safety data sheet from the supplier is not the assessment. It is the information you use to write one. Leemarda Safety writes the COSHH assessments and hosts the SDS pack so both sit together and can be opened on site.
Ask Leemarda to do this for youWhat the law requires
- Control of Substances Hazardous to Health Regulations 2002: assess the risks, prevent or control exposure, and give information, instruction and training.
- UK REACH: suppliers of hazardous chemicals must provide an up-to-date safety data sheet. If you supply chemicals onwards, you must pass that information on.
Official guidance
- HSE is clear: use the SDS to inform your own COSHH assessment. Workplace exposure limits in EH40 still apply where they are set. COSHH Essentials is HSE’s good-practice route for many common tasks.
Where is this written down in legislation
Checked against official sources on 2 November 2026. This is general information for Great Britain, not legal advice for a named site. Leemarda Safety will advise you.
Ask Leemarda to do this for you