Post on 02-Jun-2018
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(Control of Substances Hazardous to HealthRegulations,2004)
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Substances & mixtures classifiedas dangerous under CHIP (Chemicals (Hazard Information andPackaging for Supply) Regulations2008 )
Substances with WELs(Workplace exposure limits)
Biological agents
Some dusts, especially in highconcentrations
Other substances of comparablehazard
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Lead and Asbestos (separateregulations)
Substances only hazardous due to: Radio-activity Simple asphyxiants High pressure or extremes of
temperature
Biological agents not connected withwork
Eg Swine flu or catching a cold from acolleague
Labels are a good guide!
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Eliminate or reducerisks from hazardoussubstances
This is achieved by:Risk assessmentControl measuresMonitoring health &exposure if necessaryInformation, trainingand supervision
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Take reasonable care ofour own safety and notendanger othersCooperate with ouremployerMake full and proper useof control measure
Just reiterating our dutiesunder HSAW
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Identify the hazardoussubstance(s) eg
Chemicals Biological materials Mixtures
Proprietary products Reaction products and
intermediates
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New International Hazard Symbols
Danger Flammable Oxidiser
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New International Hazard Symbols
Explosive Corrosive Compressed orliquefied gas
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New International Hazard Symbols
Aquatic Warning Sensitiser, carcinogen,Toxicity mutagen or teratogen
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OTHER SYMBOLS YOU MIGHT SEEWHAT DO THEY MEAN
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FLAMMABLE EXPLOSIVE
HARMFUL TO THEENVIRONMENT
IRRITANT /HARMFUL
TOXIC
HIGHLYFLAMMABLE
CORROSIVE
OXIDISING BIOLOGICAL
AGENT
VERY TOXIC
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Use available data eg.
Data sheets & labels
Workplace exposure limits(WELs) see Safety Servicesweb site
On-line databases
Previous experience &publications
(Especially for novel products)
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InhalationSkin or eye
contaminationIngestionInjection
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Factors to Consider: Toxicity Form (gas, spray, dust,
liquid, solid)
Solubility Amount (weight &/or
volume) Nature of the operation Length of exposure Number of people
involved
OR
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Control exposure inproportion to riskby using thehierarchy ofcontrols.
Personal protectiveequipment shouldbe a last resort asthe prime means ofcontrol ?
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Replace substancewith a saferalternative
Eg use a lowerhazard disinfectantrather than bleach
(irritant) if it will dothe job adequately
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Use the material in asafer form eg:
Use water-based paint
instead of solvent-based paint
Buy hazardousmaterials in pre-weighed sachets ratherthan having to measure& make-up from bulkquantities
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Control theoperation eg Isolate the work Control at source
Fume cupboardLocal exhaustventilation
Reduce the number
of workers Reduce the frequency
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Personal protectiveequipment as a lastresort: Protects only the
worker & not othersin the room
Training &maintenancerequired
Often not verycomfortable
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Good laboratorytechniques is vitaleg. Labelling Correct substance
storage Warning signs where
appropriate Cleanliness & tidiness Correct waste disposal
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Must be kept in goodrepair & working properly
Regular simple checks onairflowLEV & fume cupboardsmust have engineeringchecks every 14 monthsRecords kept for 5 years
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Measure concentrations where assessmentconcludes that: There is a serious risk if controls fail Exposure limits may be exceeded Control measures may not be working properly Employees are involved in certain specific work in
Schedule 5 (unlikely in the University apart frompossibly use of vinyl chloride monomer)
Records must be kept for 5 years
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Only required if:
Significant exposure of Schedule 6processes (apart from vinyl chlorideuse, these are all manufacturing
processes) Likelihood of exposure to substances
linked to specific diseases but only if:There is a reasonable likelihood that thiswill occurIt is actually possible to detect the diseaseor effect
Records to be kept for 40 years
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Preparation phase(egweighing out)The process itself
Safe waste disposalEmergencyprocedures Spillage Fire First aid
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InformationInstructionTrainingSupervision
This will includethe proceduresthemselves andwhat to do in anemergency
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Are the control measuresadequate?
Are they working correctly?
Is everyone aware of how touse them?
Have you the necessaryequipment to deal with anemergency or malfunction?
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If you are working in a Science, Medicine orEngineering department, you should now findout the specific forms and methods used inyour department for CoSHH assessments.
If you are working mainly with proprietaryproducts (cleaning materials, lubricants,
household chemicals etc), you may find ituseful to complete the presentation onexamining data sheets