2. 2
Hazardous SubstancesHazardous Substances
What substances are hazardous and why?
Intrinsically hazardous e.g. Cyanide
Hazardous in certain situations, such as
Place e.g. solvents in unventilated areas
Temperature e.g. flammable liquids
Cause an unsafe situation
e.g. Spilt oil is very slippery
Almost ALL substances have some
potential to be hazardous!
e.g. Nitrogen causes ‘the bends’ in divers
3. 3
Intrinsically Hazardous SubstancesIntrinsically Hazardous Substances
COSHH
(Control of Substances Hazardous to Health Regulations)
Defines a list of substances
which is published annually
Regulations specify the exact symbols
and words required on the container
Warning Symbols
Risk Phrases (R..)
Safety Phrases (S..)
4. 4
Warning SymbolsWarning Symbols
If inhaled, ingested or penetrates the skin:
Toxic
May cause serious illness or death
Corrosive
May damage or destroy living tissue
(the effect may be delayed)
6. 6
Warning SymbolsWarning Symbols
Explosive
Highly or Extremely Flammable
Has a flash point (i.e. easily ignited)
at room temperature or below
7. 7
Warning SymbolsWarning Symbols
Oxidizing
Supports the combustion of other
substances by generating oxygen
Harmful to the environment
May cause damage to
aquatic life or plants
8. 8
Risk Phrase ExamplesRisk Phrase Examples
R14: Reacts violently with water
R22: Harmful if swallowed
R36/37/38: Irritating to eyes,respiratory
system and skin
R42/43: may cause sensitisation by
inhalation and skin contact
9. 9
Safety Phrase ExamplesSafety Phrase Examples
S51: Use only in well-ventilated areas
The area that matters is that immediately around your head
- the vapour that you breathe in.
S2: Keep out of reach of children
S20: When using, do not eat or drink
S24: Avoid contact with skin
S37/39: Wear suitable gloves and eye/face
protection
10. 10
4 Mandatory Rules4 Mandatory Rules
1. Read the label and instructions
2. Do EXACTLYEXACTLY what they say
Proper use
Ventilation
No flames, smoking or sources of ignition
Wear appropriate Personal Protective Equipment
e.g. Eye protection, Correct gloves, Apron etc.
Handling and storage
Spill control
Emergency precautions and procedures
11. 11
4 Mandatory Rules4 Mandatory Rules
3. Ensure the right conditions
No distractions
No interruptions
No passers by
CONCENTRATE!
3.3. Dispose of waste correctlyDispose of waste correctly
12. 12
3 more points3 more points
Never transfer a hazardous substance to
another container unless it is designed and
labelled correctly.
Keep containers tightly closed
It is the invisible vapour from a solvent or
other petroleum-based product which is
even more dangerous than the liquid.
It is heavier than air and may be ignited by a spark or flame
some distance from the liquid.
It may build up to dangerous concentrations where there is
little airflow.
13. 13
3 more points3 more points
Changing a gas cylinder (inc BBQ etc)
A small leak can produce a large volume of gas, which can
cause an explosion or a fierce fire
Change or connect the cylinder to an appliance in the open
air
Never have a naked flame near an gas cylinder which is
being changed
Check hoses regularly
Store spare cylinders outside, but not below ground level
Lock cylinders away from children
14. 14
P.A.U.S.E.P.A.U.S.E.
P.A.U.S.E.
for thought
PPlan each task
AAnalyse what might happen
UUnexpected - be prepared
SSlipping, tripping & sprains
EEntanglement
P.A.U.S.E. for thought ... think safety
A millisecond makes all the
difference
15. 15
To concludeTo conclude
Please think about what you have seen in
this presentation.
Injuries hurt. Pain isn’t pleasant.
Safety = 100%
concentration
100%
of the time
You have choices about your life.
Hinweis der Redaktion
Every time that you do anything, pausing for a millisecond or two prevents complacency and ensures neither you nor anyone else gets injured – and that the job is done right first time.