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What you need to do

Before you start your COSHH assessment, you need to:

Think about

  • What do you do that involves hazardous substances?
  • How can these cause harm?
  • How can you reduce the risk of harm occurring?

Always try to prevent exposure at source. For example:

  • Can you avoid using a hazardous substance or use a safer process – preventing exposure, eg using water-based rather than solvent-based products, applying by brush rather than spraying?
  • Can you substitute it for something safer – eg swap an irritant cleaning product for something milder, or using a vacuum cleaner rather than a brush?
  • Can you use a safer form, eg can you use a solid rather than liquid to avoid splashes or a waxy solid instead of a dry powder to avoid dust?

Check your trade press and talk to employees. At trade meetings, ask others in your industry for ideas.

If you can't prevent exposure, you need to control it adequately by applying the principles of good control practice.[61]

Control is adequate when the risk of harm is 'as low as is reasonably practicable'. 

This means:

  • All control measures[62] are in good working order.
  • Exposures are below the Workplace Exposure Limit, where one exists.
  • Exposure to substances that cause cancer, asthma or genetic damage is reduced to as low a level as possible.

Link URLs in this page

  1. COSHHhttps://www.hse.gov.uk/COSHH/index.htm
  2. COSHH overviewhttps://www.hse.gov.uk/COSHH/basics/index.htm
  3. What is a ‘substance hazardous to health’?https://www.hse.gov.uk/COSHH/basics/substance.htm
  4. I’m self-employed. Does this apply to me?https://www.hse.gov.uk/COSHH/basics/selfemployed.htm
  5. What you need to dohttps://www.hse.gov.uk/COSHH/basics/whatdo.htm
  6. COSHH assessmenthttps://www.hse.gov.uk/COSHH/basics/assessment.htm
  7. Substitutionhttps://www.hse.gov.uk/COSHH/basics/substitution.htm
  8. Exposure limitshttps://www.hse.gov.uk/COSHH/basics/exposurelimits.htm
  9. Chemical safety data sheetshttps://www.hse.gov.uk/COSHH/basics/datasheets.htm
  10. Control measureshttps://www.hse.gov.uk/COSHH/basics/control.htm
  11. Permits to workhttps://www.hse.gov.uk/COSHH/basics/permits.htm
  12. Personal protective equipmenthttps://www.hse.gov.uk/COSHH/basics/ppe.htm
  13. Monitoringhttps://www.hse.gov.uk/COSHH/basics/monitoring.htm
  14. Health surveillancehttps://www.hse.gov.uk/COSHH/basics/surveillance.htm
  15. Training for employeeshttps://www.hse.gov.uk/COSHH/basics/training.htm
  16. Emergencieshttps://www.hse.gov.uk/COSHH/basics/emergencies.htm
  17. Detailed overviewhttps://www.hse.gov.uk/COSHH/detail/index.htm
  18. COSHH, CLP and REACHhttps://www.hse.gov.uk/COSHH/detail/coshh-clp-reach.htm
  19. REACH and COSHHhttps://www.hse.gov.uk/COSHH/detail/reach.htm
  20. Principles of good practicehttps://www.hse.gov.uk/COSHH/detail/goodpractice.htm
  21. Overview - Your industryhttps://www.hse.gov.uk/COSHH/industry/index.htm
  22. Agriculturehttps://www.hse.gov.uk/COSHH/industry/agriculture.htm
  23. Bakinghttps://www.hse.gov.uk/COSHH/industry/baking.htm
  24. Beautyhttps://www.hse.gov.uk/COSHH/industry/beauty.htm
  25. Cateringhttps://www.hse.gov.uk/COSHH/industry/catering.htm
  26. Cleaninghttps://www.hse.gov.uk/COSHH/industry/cleaning.htm
  27. Engineeringhttps://www.hse.gov.uk/COSHH/industry/engineering.htm
  28. Fumigationhttps://www.hse.gov.uk/COSHH/industry/fumigation.htm
  29. Hairdressinghttps://www.hse.gov.uk/COSHH/industry/hairdressing.htm
  30. Offshore oil and gashttps://www.hse.gov.uk/COSHH/industry/offshore.htm
  31. Printinghttps://www.hse.gov.uk/COSHH/industry/printing.htm
  32. Motor vehicle repairhttps://www.hse.gov.uk/COSHH/industry/mvr.htm
  33. Weldinghttps://www.hse.gov.uk/COSHH/industry/welding.htm
  34. Woodworkinghttps://www.hse.gov.uk/COSHH/industry/woodworking.htm
  35. Frequently asked questionshttps://www.hse.gov.uk/COSHH/faq.htm
  36. Overview - Resourceshttps://www.hse.gov.uk/COSHH/resources.htm
  37. COSHH Essentialshttps://www.hse.gov.uk/COSHH/essentials/index.htm
  38. Overview - Case studieshttps://www.hse.gov.uk/COSHH/casestudies/index.htm
  39. Soldererhttps://www.hse.gov.uk/COSHH/casestudies/solder.htm
  40. Bakerhttps://www.hse.gov.uk/COSHH/casestudies/baker.htm
  41. Cookhttps://www.hse.gov.uk/COSHH/casestudies/cook.htm
  42. Weldershttps://www.hse.gov.uk/COSHH/casestudies/welder.htm
  43. Isocyanateshttps://www.hse.gov.uk/COSHH/casestudies/isocyanates.htm
  44. Dermatitishttps://www.hse.gov.uk/COSHH/casestudies/dermatitis.htm
  45. Overview - Example risk assessmentshttps://www.hse.gov.uk/COSHH/riskassess/index.htm
  46. Officehttps://www.hse.gov.uk/COSHH/riskassess/office.htm
  47. DIY shop https://www.hse.gov.uk/COSHH/riskassess/diyshop.htm
  48. Workshop https://www.hse.gov.uk/COSHH/riskassess/workshop.htm
  49. Engineer https://www.hse.gov.uk/COSHH/riskassess/engineer.htm
  50. Sandwich makerhttps://www.hse.gov.uk/COSHH/riskassess/sandwichmaker.htm
  51. Garden centrehttps://www.hse.gov.uk/COSHH/riskassess/gardencentre.htm
  52. Paving companyhttps://www.hse.gov.uk/COSHH/riskassess/paving.htm
  53. Feed mill https://www.hse.gov.uk/COSHH/riskassess/feedmill.htm
  54. Die caster https://www.hse.gov.uk/COSHH/riskassess/diecaster.htm
  55. Electronicshttps://www.hse.gov.uk/COSHH/riskassess/electronics.htm
  56. Fruit farmhttps://www.hse.gov.uk/COSHH/riskassess/fruitfarm.htm
  57. Warehousehttps://www.hse.gov.uk/COSHH/riskassess/warehouse.htm
  58. Further informationhttps://www.hse.gov.uk/COSHH/furtherinfo.htm
  59. Publicationshttps://www.hse.gov.uk/COSHH/publications.htm
  60. Research reportshttps://www.hse.gov.uk/COSHH/research-reports.htm
  61. principles of good control practice.https://www.hse.gov.uk/COSHH/detail/goodpractice.htm
  62. control measureshttps://www.hse.gov.uk/COSHH/basics/control.htm
  63. EH40/2005 Workplace exposure limitshttps://www.hse.gov.uk/pubns/books/eh40.htm
  64. Working with substances hazardous to health: A brief guide to COSHHhttps://www.hse.gov.uk/pubns/indg136.htm
  65. COSHH Essentialshttps://www.hse.gov.uk/COSHH/essentials/index.htm
  66. Case studies (Examples of real life situations with COSHH)https://www.hse.gov.uk/COSHH/casestudies/index.htm
  67. Example risk assessments (Use these to get ideas for completing assessments)https://www.hse.gov.uk/COSHH/riskassess/index.htm
  68. Nanotechnologyhttps://www.hse.gov.uk/nanotechnology/index.htm
  69. Risk assessmenthttps://www.hse.gov.uk/risk/index.htm
  70. Local exhaust ventilation micrositehttps://www.hse.gov.uk/lev/index.htm
  71. Chemicals micrositehttps://www.hse.gov.uk/chemicals/index.htm

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2020-06-12