HWBOT LN2 Certification Level 1: Introduction & Safety used in the HWBOT World Tour LN2 workshop

1. LN2 Certification
Level 1: Introduction & Safety
Prepared
by
Our
Mission
• Evangelize
overclocking
• Convert
enthusiasts
in
to
passionate
overclockers
• Support
the
community
• Further
professionalize
extreme
overclocking
Copyright
HWBOT
2015

2. Disclaimer
HWBOT
or
any
of
its
representaHves
accepts
no
liability
for
the
content
of
this
presentaHon,
or
for
the
consequences
of
any
acHons
taken
on
the
basis
of
the
informaHon
provided.
HWBOT
shall
not
be
liable
for
any
loss
or
damage
of
whatever
nature
(direct,
indirect,
consequenHal,
or
other)
whether
arising
in
contract,
tort
or
otherwise,
which
may
arise
as
a
result
of
the
use
of
(or
inability
to
use)
cryogenic
gases
and/or
liquids
of
any
kind.
This
presentaHon
is
published
for
general
informaHon
purposes.
Any
use
made
of
the
informaHon
in
this
presentaHon
by
the
reader
is
their
sole
responsibility.
These
safety
informaHon
have
been
prepared
by
HWBOT
based
upon
established
industry
safety
standards
and
recognized
resources.
Although
HWBOT
deems
the
data
in
these
documents
accurate,
HWBOT
cannot
be
held
liable
should
their
content
fail
to
meet
the
legal
sHpulaHons
applicable
in
any
jurisdicHons
it
may
be
applied
into.
The
HWBOT
LN2
CerHficaHon
presentaHons
are
subject
to
revision.
Visit
our
website
to
ensure
that
you
have
the
latest
version.
Copyright
HWBOT
2015

3. Course summary
1. About
Liquid
Nitrogen
2. Risks
3. Safety
requirements
4. In
case
of
…
5. To
go
further
Copyright
HWBOT
2015

4. About Liquid Nitrogen
• LN2
=
Liquid
Nitrogen
• Cryogenic
liquid
• Boiling
point
below
-­‐150°C
• Most
used
cryogenics
gases:
nitrogen(LN2)
&
helium(LHe)
• Evaporated,
volume
=
x700
(raHo
1:700)
• Colourless,
Odourless,
Tasteless
• LN2
Temperature:
-­‐196°C
or
-­‐320°F
• Non
flammable,
non
explosive,
non
toxic
Copyright
HWBOT
2015

5. Risks
• Cold
Burn
-­‐
Frostnip
• Short
direct
exposure
to
the
liquid
• Damage
to
the
surface
of
the
skin
• Frostbite
• Prolonged
direct
exposure
to
the
liquid
• Damage
the
deep
Hssues
of
the
skin
• Contact
with
cold
surface
• Direct
touch
of
frozen
surfaces
(skin
may
sHck)
• Superficial
to
deep
frostbite
can
happen
• Hypothermia
• By
being
in
an
intensely
cooled
down
environment
• Indirect
exposure
of
skin
and
eyes
to
cold
gas
(output
from
relief
valve,
etc.)
• AsphyxiaHon
• By
being
in
an
insufficiently
venHlated
room
Copyright
HWBOT
2015

6. Safety
• Training
• Know
basic
cryogenic
usage
• Know
the
risks
&
safe
usage
rules
• Wear
Personal
ProtecHon
Equipment
(PPE)
• Safety
glasses
• Closed-­‐toe
shoes
(no
slippers,
thongs,
etc)
• Cryogenic
Gloves
• Follow
the
appropriate
“LN2
use
for
overclocking”
rules
Copyright
HWBOT
2015

7. If Something happens to you:
1. Call
for
Help
&
Don’t
panic
2. Look
around
you,
secure
the
area
and
make
sure
it
doesn’t
get
worse
3. If
you
can,
evaluate
your
own
“Risk”
situaHon
and
react
accordingly
(
or
ask
someone
)
4. Seek
trained
medical
assistance
5. Wait
Copyright
HWBOT
2015

8. If Something happens to someone else:
1. Call
for
Help
&
Don’t
panic
2. Look
around,
secure
the
area
and
ensure
that
it
doesn’t
get
worse
3. Evaluate
the
“Risk”
situaHon
and
react
accordingly
4. Seek
trained
medical
assistance
5. Wait
Copyright
HWBOT
2015

9. What to do in case of:
1. Cold
Burn
a. Gently
rewarm
area
by
blowing
warm
air
(do
not
apply
heat
!)
b. Soak
in
mild-­‐warm
water
(no
hot
water
!)
c. Do
not
remove
skin
2. Frostbite
a. Make
sure
there
is
no
Hypothermia
risks
b. Protect
the
skin
from
further
exposure
c. Gently
rewarm
area
by
blowing
warm
air
/
apply
warm
water
or
cloth
d. Soak
area
in
warm
water
(37
to
42
C)
for
15-­‐30
minutes
e. Don’t
pressure
it
(if
under
the
feets,
don’t
walk
on
it)
f. Seek
immediate
medical
alenHon!
Copyright
HWBOT
2015

10. What to do in case of:
3. Contact
with
cold
surface
o Avoid
prolonged
contact
with
the
surface
-­‐
immediately
pull
away
§ if
Cold
burn
or
frostbite,
react
accordingly
o If
you
are
stuck,
cut-­‐off
/
stop
the
source
of
cold
§ Do
not
pull
-­‐
Hssues
may
be
torn
away
in
the
process!
§ Ask
for
on-­‐site
emergency
assistance
§ Progressively
warm
the
area
4. Hypothermia
o Make
sure
all
cloths
on
the
vicHm
are
dry
o Place
the
vicHm
between
blankets
(or
towels,
newspaper,
etc.)
so
the
body
temperature
can
rise
gradually.
Keep
the
head
warm!
o Quickly
transport
vicHm
to
an
emergency
facility
o If
loss
of
consciousness
perform
CPR
unHl
medical
aid
arrives
Copyright
HWBOT
2015

11. What to do in case of:
5. AsphyxiaHon
a. Ensure
circulaHon
of
fresh
air
before
entering
the
room
by
opening
the
doors
and
windows.
b. Before
entering
the
enclosed
space
take
two
or
three
deep
breaths
and
hold
your
breath
as
long
as
you
can.
c. Remove
the
casualty
as
quickly
as
possible
to
fresh
air.
d. If
vicHm
is
asphyxiated:
Loosen
clothes
at
neck
and
waist
and
give
arHficial
respiraHon
(if
you
don’t
know
how-­‐to:
seek
assistance)
You
can
feel
unconscious
a-er
only
2
breathes
in
low
oxygen
environment
Copyright
HWBOT
2015

12. To go further
AddiHonal
cerHficaHons
courses
available:
• Next
CerHficaHon
Levels
• Level
2:
LN2
for
Overclocking
“personal”
• Level
3:
LN2
for
Overclocking
“with
others”
• Level
4:
LN2
for
Overclocking
“public
demonstraHons”
• Train
others
• Be
able
to
train
others
to
the
safe
use
of
LN2
for
overclocking
Copyright
HWBOT
2015

13. Thanks
QuesHons?
Contact
us.
Pieter
Jan-­‐Plaisier
+886
970
726
470
pieter@hwbot.org
Copyright
HWBOT
2015
Timothée
Pineau
xyala@hwbot.org
+886
970
203
741

14. References
• Air
Liquid
Encyclopedia,
Physical
properHes
of
Cryogenics.
Retrieved
on
December
2014
from
hlp://encyclopedia.airliquide.com/help.asp?LanguageID=11
• D.R.
LIDE,
Handbook
of
Chemistry
and
Physics,
88th
Ed,
Editor
CRC
Press,
2007-­‐2008.
• Gas
Encyclopedia,
Air
Liquide,
Editor
Elsevier,
1976.
• Handbook
of
Compressed
Gases,
4th
Ed,
Editor
Kluwer
Academic
Pub,
1999.
• InternaHonal
standards:
Gas
cylinders
-­‐
CompaHbility
of
cylinder
and
valve
materials
with
gas
contents
-­‐-­‐
Part
1:
ISO
11114-­‐1
(May
2012),
Part
2:
ISO
11114-­‐2
(March
2001).
• Linde
Group,
Handling
of
Cryogenic
liquefied
gases.
Retrieved
on
December
2014
from
hlp://www.linde-­‐gas.fr/internet.lg.lg.fra/fr/images/Handling%20of%20cryogenic%20liquefied%20gases201_72930.pdf
• Linde
Group,
Handling
of
Gas
Cylinder.
Retrieved
on
December
2014
from
hlp://www.linde-­‐gas.fr/internet.lg.lg.fra/fr/images/Handling%20of%20Gas%20Cylinders%20at%20and%20awer%20Fire%20or%20Heat%20Exposure201_72931.pdf
• Linde
Group,
Oxygen
deficiency.
Retrieved
December
on
2014
from
hlp://www.linde-­‐gas.fr/internet.lg.lg.fra/fr/images/Oxygen%20deficiency201_72932.pdf
• Linde
Group,
Handling
refrigerated
liquefied
nitrogen
in
transportable
cryogenic
receptacles.
Retrieved
on
December
2014
from
hlp://www.linde-­‐gas.fr/internet.lg.lg.fra/fr/images/Handling%20refrigerated%20liquefied%20nitrogen%20in%20transportable%20cryogenic%20receptables201_72944.pdf
• Mayoclininc.org,
Frostbite:
first
aid.
Retrieved
on
January
2015
from
hlp://www.mayoclinic.org/first-­‐aid/first-­‐aid-­‐frostbite/basics/art-­‐20056653
• Praxair,
Nitrogen
Refrigerated
Liquid.
Retrieved
on
January
2015
from
hlp://www.praxair.com/~/media/North%20America/US/Documents/SDS/Liquid%20Nitrogen%20Medipure%20Gas%20N2%20Safety%20Data%20Sheet%20SDS%20P4630.pdf
• The
university
of
Auckland,
Safe
storage
of
liquid
nitrogen.
Retrieved
on
February
2015
from
hlps://cdn.auckland.ac.nz/assets/science/for/current-­‐students/HR/health-­‐safety-­‐wellness/documents/SMOU%2021%20Safe%20Storage%20of%20Liquid%20Nitrogen
%20(2)%20(2).pdf
• The
University
of
Auckland,
Cryogenic
Liquids.
Retrieved
on
February
2015
form
hlps://cdn.auckland.ac.nz/assets/science/for/current-­‐students/HR/health-­‐safety-­‐wellness/documents/SMOU18-­‐Cryogenic%20Liquids.pdf
• The
University
of
Auckland,
Safety
guidelines
for
cryogenic
materials.
Retrieved
on
February
2015
from
hlps://cdn.auckland.ac.nz/assets/science/for/current-­‐students/HR/health-­‐safety-­‐wellness/documents/cryogenic_materials_guide.doc
• Web
Health
Center,
Different
Kinds
of
Asphyxia.
Retrieved
on
January
2015
from
hlp://www.webhealthcentre.com/HealthyLiving/first_aid_drown.aspx
Copyright
HWBOT
2015