COSHH Essentials - powerpoint presentation

1 COSHH Essentials Working Group on Action to Control Chemicals COSHH Essentials INHALATION. HAZARD BANDING EXPOSURE BANDING. AMOUNT DUSTINESS. / VOLATILITY. BROAD CONTROL APPROACH. + GUIDANCE ON TASK. COSHH Essentials Least hazardous Most hazardous A B C D E. Skin, eye Harmful on Toxic, Very toxic, Asthma, can- irritants; single corrosive, toxic to cer, genetic unclassified exposure etc. reproduction damage R36 R20 R23, 24, 25 R26, 27, 28 R42. R38 R21 R34, 35 R40 carc. R45, R49. All other R R22 R37 R48/23/24/25 R46, R68. No R R41, R43 R60, 61, 62, 63. R48/20/21/22. S causes harm in contact with skin and/or eyes COSHH Essentials HAZARD BANDS EXPOSURE BANDS. Dispersion Amount: Potential: A skin / eye irritant B harmful Low Small (pellets or C severe irritant, toxic, - (g, ml) BP>150C). corrosive,skin sensitiser Medium Medium D very toxic, - (kg, l) (granule or harmful to reproduction Large BP 50-150C). E cancer, genetic - (t, m3) High damage, asthma (powder or BP <50C). INCREASING RISK.

2 COSHH Essentials Hazard Associated exposure Associated exposure Group band - dust band - vapour A 1 to 10 mg/m3 50 to 500 ppm B to 1 mg/m3 5 to 50 ppm C to mg/m3 to 5 ppm D < mg/m3 < ppm COSHH Essentials Dustiness of solid Low Medium High Volatility of liquid 350 Low Volatility 300. Amount 250. Medium Volatility 200. Small 150 High Volatility Boiling point (oC). Medium 100. 50. Large Operating temperature (oC). 20 50 75 100 125 150. COSHH Essentials COSHH Essentials Hazard Assessment Control Collects data: Produces: - unit operation - control solutions - chemical / product (Control Guidance - risk [R] phrases Sheets). - amount used - assessment log - volatility / dustiness (evidence of - process temperature assessment). - task duration COSHH Essentials 1. GENERAL VENTILATION Least reduction in A good standard of general ventilation exposure 2. ENGINEERING CONTROL. LEV eg single-point extractor close to source, ventilated partial enclosure. 3. CONTAINMENT Most reduction Enclose or contain small breaches may be OK in exposure 4.

3 SPECIAL Get advice Expert advice is needed seek help COSHH Essentials access design and equipment (with illustration). maintenance examination and testing cleaning PPE (plus another sheet for Control Approach S'). training supervision employee checklist COSHH Essentials Limitations: - Simplistic - Tendency to over-precaution - Unsuitable for gases, process emissions, etc. - Refers higher risks for expert advice - Skin exposure handled poorly e- COSHH Essentials Internet product (includes Technical Basis). Release 1: April 2002 Release 2: October 2003. - liquids and solids - rubber, foundry, wood - mixtures - flour, isocyanate in MVR. - inhalation exposure - commercial and retail - common processes - special advice Missing: asbestos, lead, gases, skin exposure, other process emissions, RPE, safety, environment, etc. e- COSHH Essentials Worked examples: 1 Curtain coating and drying 2 Spraying a very large casting 1 Drying 1 Drying 1 Drying 1 Drying 1 Drying 1 Drying Paint R10 R65.

4 1 Drying 1 Drying 1 Drying 1 Drying 1 Drying 1 Drying 2 Spray coating 2 Spray coating 2 Spray coating Home! 2 Spray coating 2 Spray coating 2 Spray coating 2 Spray coating 2 Spray coating 2 Spray coating e- COSHH Essentials What next? Respirable crystalline silica Printing Welding, cutting and allied activities Selection of RPE and PPE. Skin exposure Gases Asthmagens in agriculture e- COSHH Essentials Thank you. Any questions?