hazard assesment module 9

8/13/2019 Hazard Assesment Module 9

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Risk Management Services

www.riskmanagement.ubc.ca


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Module 9:Hazard Assessment and Hazard Recognition

Laboratory Chemical Safety


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IntroductionIdentification of hazards in the workplace is essential fordeveloping controls to protect workers. In this module, thesteps required to effectively recognize hazards and perform ahazard analysis will be reviewed. More detailed referencematerials can be found in Section 5 of the ChemicalLaboratory Safety Manual .
http://www.riskmanagement.ubc.ca/sites/riskmanagement.ubc.ca/files/uploads/Documents/Chemical%20Lab%20Safety%20Manual.pdfhttp://www.riskmanagement.ubc.ca/sites/riskmanagement.ubc.ca/files/uploads/Documents/Chemical%20Lab%20Safety%20Manual.pdfhttp://www.riskmanagement.ubc.ca/sites/riskmanagement.ubc.ca/files/uploads/Documents/Chemical%20Lab%20Safety%20Manual.pdfhttp://www.riskmanagement.ubc.ca/sites/riskmanagement.ubc.ca/files/uploads/Documents/Chemical%20Lab%20Safety%20Manual.pdf


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Hazard AssessmentSupervisors are responsible for discussing:

What types of PPE are used in the lab When PPE is necessary in the lab How to obtain PPE How to wear, adjust, and use PPE The limitations of the PPE Proper PPE practices including not wearing PPE outside of

lab hazard areas (e.g. in hallways and eating areas)


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Employees must know:

What types of PPE are required in a lab Where to obtain PPE How to wear, adjust, and use PPE The limitations and use of fume hoods How to safely operate all equipment in the lab How to demonstrate safe work procedures How to obtain assistance when needed

Hazard Assessment


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Assess the Hazard of Each ExperimentReview the potential hazard associated with each experimentover its life cycle

Perform hazard assessment for each step of eachexperiment

Incorporate hazard information and safety measures to theexperiment protocols

A project control hazard analysis is provided in theChemical Safety Manual (page 90)
http://www.riskmanagement.ubc.ca/sites/riskmanagement.ubc.ca/files/uploads/Documents/Chemical%20Lab%20Safety%20Manual.pdfhttp://www.riskmanagement.ubc.ca/sites/riskmanagement.ubc.ca/files/uploads/Documents/Chemical%20Lab%20Safety%20Manual.pdfhttp://www.riskmanagement.ubc.ca/sites/riskmanagement.ubc.ca/files/uploads/Documents/Chemical%20Lab%20Safety%20Manual.pdfhttp://www.riskmanagement.ubc.ca/sites/riskmanagement.ubc.ca/files/uploads/Documents/Chemical%20Lab%20Safety%20Manual.pdfhttp://www.riskmanagement.ubc.ca/sites/riskmanagement.ubc.ca/files/uploads/Documents/Chemical%20Lab%20Safety%20Manual.pdf


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Before any work commences: Be prepared for:

Exothermic reactions Run away reactions Pressure build up Generation of hazardous gases Interaction between incompatible materials

Know the physical conditions required (pressure, extremetemperature, high voltage)

Know the conditions that may be developed in the course ofthe reaction


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Equipment It is vital that laboratory personnel understand how tocorrectly and safely use the apparatus that is needed in anygiven experiment. This includes the use of basic types ofglassware, distillation, filtration and low pressure apparatus aswell as more expensive and sophisticated instruments such asgas and liquid chromatographs and spectrometers.


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Equipment Setup Consider the potential impact of loss of air, water or power Know the conditions that may be developed in the course of

the reaction Workers must be trained how to inspect lab equipment

according to the manufacturers recommendations


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Centrifuge SafetyPotential hazards are associated with centrifuges includephysical hazards from moving parts or mechanical failure andchemical hazards from contact with spilled material.

Do not attempt to operate a centrifuge until you have receivedinstruction in its specific operation. Read the operationmanual, if available, and ask an experienced colleague orsupervisor to demonstrate procedures.


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Decontamination Develop a procedure for equipment and area decontamination

Use proper cleaning materials, review compatibilityinformation

Special caution should be taken with reactive materials andwhen cleaning with solvents


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Waste DisposalEvaluate all waste products to be generated Develop written disposal instructions

Unstable waste Wastes require special storage and handling Compatibility of waste to be accumulated

Do not use the fume hood to dispose of volatile hazardousmaterials (use filters, scrubbers or other controls)


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Hazard Recognition Be alert to hazards Manage hazards on an ongoing basis Report and eliminate hazards Formal inspections are required to ensure good hazard

management: Monthly laboratory inspections by supervisory personnel Supplemental inspections by the safety committee


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InspectionsEvery employee must ensure that inspections are conductedof all equipment, procedures, and practices, beforecommencing any lab work.

As an employee, you must inform your supervisor of all healthand safety concerns, where possible, suggest means ofeliminating these hazards.

Any unsafe or harmful conditions found during a regularinspection should be reported immediately to the supervisoror employer and remedied without delay.


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Inspections

Inspections cover areas such as: Emergency Info and Materials First aid Personal Protection Housekeeping Waste Procedures Compressed gas cylinders Fume hoods

Additional items tha t can be found in the Chemical SafetyInspection Checklist (page 91)
http://www.riskmanagement.ubc.ca/sites/riskmanagement.ubc.ca/files/uploads/Documents/Chemical%20Lab%20Safety%20Manual.pdfhttp://www.riskmanagement.ubc.ca/sites/riskmanagement.ubc.ca/files/uploads/Documents/Chemical%20Lab%20Safety%20Manual.pdfhttp://www.riskmanagement.ubc.ca/sites/riskmanagement.ubc.ca/files/uploads/Documents/Chemical%20Lab%20Safety%20Manual.pdfhttp://www.riskmanagement.ubc.ca/sites/riskmanagement.ubc.ca/files/uploads/Documents/Chemical%20Lab%20Safety%20Manual.pdfhttp://www.riskmanagement.ubc.ca/sites/riskmanagement.ubc.ca/files/uploads/Documents/Chemical%20Lab%20Safety%20Manual.pdfhttp://www.riskmanagement.ubc.ca/sites/riskmanagement.ubc.ca/files/uploads/Documents/Chemical%20Lab%20Safety%20Manual.pdfhttp://www.riskmanagement.ubc.ca/sites/riskmanagement.ubc.ca/files/uploads/Documents/Chemical%20Lab%20Safety%20Manual.pdf


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Lab Practicals

Once you have completed the final exam of this course, alink will appear on the main page of the course and you willbe given a password to register for a practical session.Remember to register within 60 days of starting theonline course or you will have to do it again!

Morning session 9:00 am 12:00 pm Location UBC HOSPITAL

2211 WESBROOK MALL Room G326

Ground floor across from Radiation Protection office If entering from the North, walk down the hallway, go

left, room will be on the right If entering from Main Entrance of hospital, follow the

sign and head one floor down to ground floor


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