COSHH essentials

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An introduction to COSHH Essentials - a simplified method for carrying out chemical health risk assessments developed by the UK Health and Safety Executive. Includes case studies. (Note: does not cover the limitations of this approach)

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COSHH essentials

  1. 1.  A simplified approach to chemical health risk assessments
  2. 2.  Developed by the British Health and Safety Executive
  3. 3.  Originally intended to be used by small businesses with limited access to expertise
  4. 4. No longer available topurchase as hard copy.Assessments have to becarried out using website
  5. 5. http://www.hse.gov.uk/coshh/essentials/index.htm
  6. 6. Control sheets are alsoavailable on a wide rangeof common industrialprocesses athttp://www.hse.gov.uk/pubns/guidance/index.htm
  7. 7. Specific control sheets arealso available for a wide rangeof common industrialprocesses athttp://www.hse.gov.uk/pubns/guidance/index.htm
  8. 8. The International LaborOrganisation (ILO) hasadopted COSHHEssentials as the basisof their “InternationalChemical ControlToolkit”
  9. 9. http://www.ilo.org/legacy/english/protection/safework/ctrl_banding/toolkit/icct/index.htm
  10. 10. 1. Assign hazard group 2. How much is used?3. Determine dustiness / volatility 4. Identify control approach5. Find appropriate control sheets
  11. 11. 1. Assign Hazard Group
  12. 12. Hazard group (A to E) depends on“R phrases” assigned by supplierand provided on the label andsafety data sheet
  13. 13. Group “A” represents low hazardGroup “E” for most serious hazards
  14. 14. Additional Group “S” for substancesthat present a skin hazard
  15. 15. A B C D E SR36 R20 R23 R26 R40 Muta cat 3 R21R36/38 R20/21 R23/24 R26/27 R42 R24R38 R20/21/22 R23/24/25 R26/27/28 R42/43 R27R65 R21, R23/25 R26/28 R45 R34R66 R21/22 R24 R27 R46 R35R67 R22 R24/25 R27/28 R49 R36All dusts and R25 R28 R36/37vapours not R34 R40 Carc. Cat. 3, R36/37/38allocated to R35 R48/23 R36/38another band R36/37 R48/23/24 R38 R36/37/38 R48/23/24/25 R41 R37 R48/23/25 R42 R37/38 R48/24 R42/43 R41, R48/24/25 R43 R43, R48/25 R48/21 R48/20 R60, R48/21/22 R48/20/21 R61, R48/22 R48/20/21/22 R62, R48/23 R48/20/22 R63, R48/24 R48/21 R64 R48/24/25 R48/21/22 R48/25 R48/22 R66
  16. 16. 1. Assign Hazard Group2. How much is used?
  17. 17. How much is used? Solids LiquidsSmall Grams millilitresMedium Kilograms litresLarge Tonnes Cubic metres
  18. 18. 1. Assign Hazard Group 2. How much is used?3. Determine dustiness / volatility
  19. 19. Solids – How dusty?Low Pellet-like solids that dont break up. Little dust visible during useMedium Crystalline, granular solids. When used, dust is seen but settles out quicklyHigh Fine, light powders. When used dust clouds remain in air for some time
  20. 20. Liquids – How volatile? Source: ILO toolkit
  21. 21. 1. Assign Hazard Group 2. How much is used?3. Determine dustiness / volatility 4. Identify control approach
  22. 22. Control Approach Source: ILO toolkit
  23. 23. 1. Assign Hazard Group 2. How much is used?3. Determine dustiness / volatility 4. Identify control approach5. Find appropriate control sheets
  24. 24. Difficult to obtain otherthan by undertaking anassessment using thewebsite
  25. 25. ILO Task Specific Control Guidance Sheet Source: ILO toolkit
  26. 26. ILO Task Specific Control Guidance Sheet Source: ILO toolkit
  27. 27. ILO Task Specific Control Guidance Sheet Source: ILO toolkit
  28. 28. 1. Assign Hazard Group 2. How much is used?3. Determine dustiness / volatility 4. Identify control approach5. Find appropriate control sheets
  29. 29. Scenario 1 – Making up slurry fromcerium oxide powder
  30. 30. Scenario 1 – Making up slurry fromcerium oxide powder A few kilograms of powder weighed out about 6 times per day
  31. 31. Scenario 1 – Making up slurry fromcerium oxide powder Added to water and mixed to form slurry which is used to polish glass
  32. 32. Cerium oxide powder Not classified as hazardous Fine, dusty powder
  33. 33. A B C D E SR36 R20 R23 R26 R40 Muta cat 3 R21R36/38 R20/21 R23/24 R26/27 R42 R24R38 R20/21/22 R23/24/25 R26/27/28 R42/43 R27R65 R21, R23/25 R26/28 R45 R34R66 R21/22 R24 R27 R46 R35R67 R22 R24/25 R27/28 R49 R36All dusts and R25 R28 R36/37vapours not R34 R40 Carc. Cat. 3, R36/37/38allocated to R35 R48/23 R36/38another band R36/37 R48/23/24 R38 R36/37/38 R48/23/24/25 R41 R37 R48/23/25 R42 R37/38 R48/24 R42/43 R41, R48/24/25 R43 R43, R48/25 R48/21 R48/20 R60, R48/21/22 R48/20/21 R61, R48/22 R48/20/21/22 R62, R48/23 R48/20/22 R63, R48/24 R48/21 R64 R48/24/25 R48/21/22 R48/25 R48/22 R66
  34. 34. A B C D E SR36 R20 R23 R26 R40 Muta cat 3 R21R36/38 R20/21 R23/24 R26/27 R42 R24R38 R20/21/22 R23/24/25 R26/27/28 R42/43 R27R65 R21, R23/25 R26/28 R45 R34R66 R21/22 R24 R27 R46 R35R67 R22 R24/25 R27/28 R49 R36All dusts and R25 R28 R36/37vapours not R34 R40 Carc. Cat. 3, R36/37/38allocated to R35 R48/23 R36/38another band R36/37 R48/23/24 R38 R36/37/38 R48/23/24/25 R41 R37 R48/23/25 R42 R37/38 R48/24 R42/43 R41, R48/24/25 R43 R43, R48/25 R48/21 R48/20 R60, R48/21/22 R48/20/21 R61, R48/22 R48/20/21/22 R62, R48/23 R48/20/22 R63, R48/24 R48/21 R64 R48/24/25 R48/21/22 R48/25 R48/22 R66
  35. 35. How much is used? Solids LiquidsSmall Grams millilitresMedium Kilograms litresLarge Tonnes Cubic metres
  36. 36. How much is used? Solids LiquidsSmall Grams millilitresMedium Kilograms litresLarge Tonnes Cubic metres
  37. 37. Solids – How dusty?Low Pellet-like solids that dont break up. Little dust visible during useMedium Crystalline, granular solids. When used, dust is seen but settles out quicklyHigh Fine, light powders. When used dust clouds remain in air for some time
  38. 38. Solids – How dusty?Low Pellet-like solids that dont break up. Little dust visible during useMedium Crystalline, granular solids. When used, dust is seen but settles out quicklyHigh Fine, light powders. When used dust clouds remain in air for some time
  39. 39. Stage 4 – Control Approach Source: ILO toolkit
  40. 40. Stage 4 – Control Approach Source: ILO toolkit
  41. 41. Stage 4 – Control Approach Source: ILO toolkit
  42. 42. Stage 4 – Control Approach Source: ILO toolkit
  43. 43. Stage 4 – Control Approach Source: ILO toolkit
  44. 44. Scenario 2Cleaning rollers withn-butyl acetate
  45. 45.  Sponge soaked in n-butyl acetate used to clean screen printing rollers Applied manually Operation takes approx. 15 minutes Done about 4 times per day
  46. 46. n-butyl acetate Boiling Point: 124 -128°C R11 - Highly flammable R36 - Irritating to eyes R37 - Irritating to respiratory system
  47. 47. A B C D E SR36 R20 R23 R26 R40 Muta cat 3 R21R36/38 R20/21 R23/24 R26/27 R42 R24R38 R20/21/22 R23/24/25 R26/27/28 R42/43 R27R65 R21, R23/25 R26/28 R45 R34R66 R21/22 R24 R27 R46 R35R67 R22 R24/25 R27/28 R49 R36All dusts and R25 R28 R36/37vapours not R34 R40 Carc. Cat. 3, R36/37/38allocated to R35 R48/23 R36/38another band R36/37 R48/23/24 R38 R36/37/38 R48/23/24/25 R41 R37 R48/23/25 R42 R37/38 R48/24 R42/43 R41, R48/24/25 R43 R43, R48/25 R48/21 R48/20 R60, R48/21/22 R48/20/21 R61, R48/22 R48/20/21/22 R62, R48/23 R48/20/22 R63, R48/24 R48/21 R64 R48/24/25 R48/21/22 R48/25 R48/22 R66
  48. 48. A B C D E SR36 R20 R23 R26 R40 Muta cat 3 R21R36/38 R20/21 R23/24 R26/27 R42 R24R38 R20/21/22 R23/24/25 R26/27/28 R42/43 R27R65 R21, R23/25 R26/28 R45 R34R66 R21/22 R24 R27 R46 R35R67 R22 R24/25 R27/28 R49 R36All dusts and R25 R28 R36/37vapours not R34 R40 Carc. Cat. 3, R36/37/38allocated to R35 R48/23 R36/38another band R36/37 R48/23/24 R38 R36/37/38 R48/23/24/25 R41 R37 R48/23/25 R42 R37/38 R48/24 R42/43 R41, R48/24/25 R43 R43, R48/25 R48/21 R48/20 R60, R48/21/22 R48/20/21 R61, R48/22 R48/20/21/22 R62, R48/23 R48/20/22 R63, R48/24 R48/21 R64 R48/24/25 R48/21/22 R48/25 R48/22 R66
  49. 49. A B C D E SR36 R20 R23 R26 R40 Muta cat 3 R21R36/38 R20/21 R23/24 R26/27 R42 R24R38 R20/21/22 R23/24/25 R26/27/28 R42/43 R27R65 R21, R23/25 R26/28 R45 R34R66 R21/22 R24 R27 R46 R35R67 R22 R24/25 R27/28 R49 R36All dusts and R25 R28 R36/37vapours not R34 R40 Carc. Cat. 3, R36/37/38allocated to R35 R48/23 R36/38another band R36/37 R48/23/24 R38 R36/37/38 R48/23/24/25 R41 R37 R48/23/25 R42 R37/38 R48/24 R42/43 R41, R48/24/25 R43 R43, R48/25 R48/21 R48/20 R60, R48/21/22 R48/20/21 R61, R48/22 R48/20/21/22 R62, R48/23 R48/20/22 R63, R48/24 R48/21 R64 R48/24/25 R48/21/22 R48/25 R48/22 R66
  50. 50. How much is used? Solids LiquidsSmall Grams millilitresMedium Kilograms litresLarge Tonnes Cubic metres
  51. 51. Solids LiquidsSmall Grams millilitresMedium Kilograms litresLarge Tonnes Cubic metres
  52. 52. Liquids – How volatile? Source: ILO toolkit
  53. 53. Liquids – How volatile? Boiling Point: 124 - 128°C Source: ILO toolkit
  54. 54. Stage 4 – Control Approach Source: ILO toolkit
  55. 55. Stage 4 – Control Approach Source: ILO toolkit
  56. 56. Stage 4 – Control Approach Source: ILO toolkit
  57. 57. Stage 4 – Control Approach Source: ILO toolkit
  58. 58. Stage 4 – Control Approach Source: ILO toolkit
  59. 59. Mike Slater, Diamond Environmental Ltd. (occhygiene@btconnect.com) This presentation is distributed under the Creative Commons Attribution-NonCommercial-ShareAlike UK:International Licence

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