ohsrm PART A School of Molecular Bioscience

Hazardous procedure: Disposing of hazardous chemical waste

Step 1. Identify hazards and hazardous jobs

Ref. # / List & describe the hazards and hazardous jobs / Priority / Date
1 / Task: Decanting chemical wastes into labeled (name, date, contents) plastic drums or glass bottles and taking to room 225 for storage/disposal / 4 / 17/3/2010
- Observing work practices / 2 / Task: Placing solid chemical wastes into labeled (name, date, contents) Hazardous Waste bags and taking to room 225 for storage/disposal / 4 / 17/3/2010
- Reading labels and literature / 3 / Hazard: Acute poisoning / 3 / 17/3/2010
4 / Hazard: Chronic poisoning / 4 / 17/3/2010
5 / Hazard: Sensitisation (allergic reaction) / 5 / 17/3/2010
6 / Specific chemicals: Phenol / 3 / 17/3/2010
7 / Specific chemicals: Chloroform / 4 / 17/3/2010
8 / Specific chemicals: Ethidium bromide / 4 / 17/3/2010
9 / Specific chemicals: Acrylamide / 4 / 17/3/2010
10 / Specific chemicals: Alcohols (methanol, ethanol,
n-propanol, isopropanol, butanol) / 4 / 17/3/2010
11 / Specific chemicals: acetonitrile / 3 / 17/3/2010
12 / Specific chemicals: sodium hypochlorite (bleach) / 4 / 17/3/2010
13 / Specific chemicals: formaldehyde / 3 / 17/3/2010
14 / Specific chemicals: photographic developer / 5 / 17/3/2010
15 / Specific chemicals: photographic fixer / 5 / 17/3/2010

Step 2. Assign priority for each hazard and hazardous job

For each of the hazards and hazardous jobs listed in Step 1, record a priority rating in the column beside that hazard/job after referring to the matrix below. The likelihood of injury will be reduced if effective risk control measures are already in place eg., safe operating equipment and procedures, trained staff etc.

Found a hazard? Think about: / How severely could it hurt someone? u
How likely is it to hurt someone?
u / !!! kill or disable / !! several days
off work / ! first aid
very likely ++
could happen regularly / 1 / 2 / 3
likely +
could happen occasionally / 2 / 3 / 4
unlikely -
could happen, but only rarely / 3 / 4 / 5
very unlikely --
could happen, but probably never will / 4 / 5 / 6
The numbers show how important it is to do something:
1 do something immediately
6 do something when possible.
PART A completed by: / R. Czolij and Nick Coleman / Date: / 17/3/2010