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What Chance has Safety?
“Wherever there is danger, there
lurks opportunity;
whenever there is opportunity,
there lurks danger.
The two are inseparable.”
Earl Nightingale (internationally acclaimed speaker. died 1989)
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David Openshaw
Technical & Safety Director
Proactive Gas Safety
Provide Verified and Nationally
Accredited Compressed Gas and
Cryogenic Safety Workshops
EAL QCF Level 3 Awards
Gas Safety Passport to HSE INDG
381
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How many play the Lottery
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Lottery Odds
6 balls
14 million :1
5 balls plus Bonus Ball
1.23 million :1
5 balls
55 thousand:1
4 balls
1000:1
3 balls
57:1
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How do you use a baseball bat
as
weapon?
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Baseball Bat Weapon
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What is the temperature of liquid
nitrogen?
A. - 120°c
B. - 186°c
C. - 196°c
D. - 206°c
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On entering a 98% nitrogen atmosphere a
person will experience ?
A. Feel no symptoms, fall unconscious after just two
breaths
B. Tight chest, feeling of drowning unconsciousness
in 3 mins
C. Light headedness, choking and gasping
D. Cough uncontrollably, feel a choking sensation and
pass out after 3 mins
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'We hear that... undergraduate stupidity knows no
bounds. In an attempt to impress his or her
classmates, a student took a sip of liquid
nitrogen to prove that it is safe.
It isn't. Within two seconds, the victim had
collapsed in intense pain, unable to breathe and
eventually passed out.
All-night surgery ensued.
From ‘New Scientist’ 27.07.02
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"My entire upper gastrointestinal tract was badly
scarred and perforated," the hapless student
recounts in an anonymous letter to the journal
Chemical Health & Safety (vol. 9, p. 4).
"They took away part of my stomach and had my
entire digestive system, top to bottom, running on
machine power for a while." The expanding gas also
collapsed one lung.
Eight weeks later the student was discharged from
hospital.
A little wiser, we hope.'
From ‘New Scientist’ 27.07.02
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What is the liquid to gas ratio of liquid
nitrogen?
A. 1 to 120
B. 1 to 496
C. 1 to 683
D. 1 to 723
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The volume of gas in this Dewar is approx 12 m³
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Liquid nitrogen pressure test
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Nitrogen Accident: Chef loses hand
14 Jul 2009
A 24 year old chef lost both hands
in a liquid Nitrogen explosion after
attempting to use the cryogen in a
‘molecular cuisine’ recipe.
A team of doctors from the
Emergency hospital at Marzahn,
Germany, operated on Martin E.
for eight hours and have sewed his
left hand back on.
Sahnesiphon
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What is the typical pressures of compressed
gas cylinders (Permanent Gases)
A. 120 bar
B. 150 bar
C. 160 to 190 bar
D. 200 to 230 bar
4
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The volume of gas in a cylinder is approx 10M³
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The Gas Cylinder Lottery
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Cylinder Construction
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Cylinder Construction
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Cylinder Construction
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CP 27
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The big three …
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The word ‘cryo’ originates from?
A. Latin ‘cryos’ ice waters
B. Northern Germanic ‘Kaltro’ God
of ice and snow
C. ‘Kryo’ Canadian Inuit for sudden
pack ice
D. Greek ‘Kruos’ meaning cold
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The three main gases in air by volume are?
A. Nitrogen, Oxygen, Carbon Dioxide
B. Nitrogen, Oxygen, Argon
C. Nitrogen, Oxygen, Hydrogen
D. Oxygen, Helium, Carbon Dioxide
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78 % Nitrogen
21 % Oxygen
0.93 % Argon
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The temperature of Dry Ice (solid CO2) is?
A. - 28°C
B. - 78°C
C. - 108°C
D. - 118°C
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A Birmingham radio station has been fined
£15,000 after four people were left with severe
frostbite after a competition stunt went wrong.
BRMB challenged contestants to sit on blocks of
dry ice - carbon dioxide frozen at temperatures of
-78C - to win tickets and back stage passes for a
music festival in the city.
Two women and a man spent about 10 weeks in
hospital recovering from extensive skin grafts,
which they had to undergo following the Coolest
Seats in Town event
Dry Ice – incident Friday, 24 January, 2003
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Cryogenic incident Lottery
Fire crews were called to deal with
the cryogenic spillage
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Edinburgh General Hospital
Fire crews were called to
deal with the spillage
‘Inquiry after man dies in chemical leak’
Full scale chemical incident
Liquid Nitrogen spillage
4 people affected
BA and chemical suits
Asphyxiant
Knew danger but attempted
rescue
No oxygen
Knew danger but attempted
rescue
Used it daily years of experience
Building evacuated
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Are your people playing chance with their
future and yours?
Proactive Gas Safety Ltd
01606 872864 Unit 7 Cosgrove Business Park
Daisy Bank Lane Anderton Northwich Cheshire
CW9 6AA
www.proactivegassafety.com