Laboratory Risk Assessment
Procedure Preparation of Inorganic ash spheres
Level of Risk medium
Hazard Risk Recommended Control
Hydrogen peroxide -
oxidising agent Personal injury -
chemical burns, eye injury, ?? Lab coat, safety glasses
and gloves must be
worn at all times.
?? Hydrogen peroxide
must be used in the
fume cupboard with the
window pulled down to
the safe working height
as indicated
Hydrogen peroxide -
oxidising agent explosion/fire ?? Spills on bench tops,
floors etc. should be
diluted with water
before mopping up.
Mopping up
concentrated hydrogen
peroxide with paper
towel can cause fires.
?? Samples with high
organic content should
be treated with cold
peroxide first and left to
stand for a short time
prior to heating
Unbalanced centrifuge Damage to centrifuge rotor
and risk of personal injury
- A broken rotor travelling
at high speed is capable of
breaking through the outer
casing of the centrifuge.
?? Ensure that the sample
buckets positioned
opposite each other on
the rotor weigh the
same.
The centrifuge does have
a light to indicate whether
it is properly balanced, but
this will only come on once
the speed of the rotor has
reached 1000 rpm and this
is often too late to prevent
damage.
