Loading presentation...

Present Remotely

Send the link below via email or IM

Copy

Present to your audience

Start remote presentation

  • Invited audience members will follow you as you navigate and present
  • People invited to a presentation do not need a Prezi account
  • This link expires 10 minutes after you close the presentation
  • A maximum of 30 users can follow your presentation
  • Learn more about this feature in our knowledge base article

Do you really want to delete this prezi?

Neither you, nor the coeditors you shared it with will be able to recover it again.

DeleteCancel

Make your likes visible on Facebook?

Connect your Facebook account to Prezi and let your likes appear on your timeline.
You can change this under Settings & Account at any time.

No, thanks

Hazards in Science

No description
by

Graham Perrin

on 25 September 2014

Comments (0)

Please log in to add your comment.

Report abuse

Transcript of Hazards in Science

What is a Hazard?
COSHH
CLEAPSS
HAZCARDS
CRONERS
A hazard is anything with the potential to harm. Hazards in the science laboratory can be

Chemicals (e.g. hydrochloric acid)
Apparatus (e.g. Low Voltage Power Supply)
Procedures (e.g. heating a beaker of water)
Heat (flames/hot objects-tripods)
Hot liquids
Sharp instruments
Voltages above 25v
Lifting heavy objects
Taste, smell, touch
General hazards
Chemicals
Living or once living materials
Tasting
Hazardous equipment
Field work
Hazards in Biology
Ethanol
Stains
Reagents - iodine solution, Benedict’s reagent, ninhydrin ……..
Formalin
Chemical Dangers in Biology
Dissection and human emotional disturbance
Contamination e.g. Salmonella
Plants. allergies and toxins(e.g. buttercup, foxglove, laburnum)
Saliva and blood
Tasting
Using Animal and Plant Materials
Choice of organisms
Facilities and resources
Preparation and disposal
Autoclaves
Staff expertise
Microbiology
Scalpels and sharps
Aquariums (electric shock)
Syringes
Sphygmomanometers
Spirometers
Biological Equipment and Apparatus
Administration
In loco parentis
Group control
Dangerous areas?
Supervision levels
Fieldwork
Toxic e.g.ammonia gas, asbestos, chlorine, lead
Harmful e.g. copper sulphate, napthalene, iodine
Irritant e.g. dilute acids and alkalis, calcium chloride
Corrosive e.g. conc. acids and alkalis, soda lime
Flammable e.g. ethanol, sulphur, paraffin
Oxidising e.g. potassium nitrate and permanganate
Explosive e.g. ammonium nitrite, nitrocellulose
Radioactive e.g. thorium salts
Hazards in Chemistry (1)
Heating solids and liquids (quantities)
Smelling gases
Spillage
Broken glass
Chemical disposal
Personal protection (goggles, gloves, aprons, lab coats, screens)
Fume cupboards
Hazards in Chemistry (2)
Chemicals
Electricity and electrostatics
Electron and gas discharge tubes
Heaters
Large masses
Lasers
Hazards in Physics (1)
High pressures or vacuums
Steam engines
Stroboscopes/signal generators
Viewing the sun
Wires under tension
Radiation
Hazards in Physics (2)
Power supplies (less than 25V and 10A)
Van de Graaff generator (electric shock)
High tension discharge tubes (up to 400V)
Electric fires, fan heaters, radiant heaters (burns and electric shocks)
Heavy masses (feet, lifting, whirling, beam collapse)
Lasers (classes-danger to eye)
Hazards in Physics (3)
Bell in jar/collapsing can (implosion/explosion-scattering of material)
Steam engines (exploding boilers, fuel ignition)
Strobes/signal generators (possible migraine or epileptic trigger)
Viewing sun (care when focusing rays)
Wires/strings/plastic filaments (breakage under tension producing whiplash injuries)
Radiation (headaches, eye damage, skin ‘burning’, cell damage)
Hazards in Physics (4)
Think it out (use your common sense)
Ask about (teachers/technicians)
Try it out (practice practicals)
Find it out (refer to documentation-
DfEE (1996) Safety in Science Education HMSO
General Principles
Full transcript