Anton Paar TTK 600, Reference Manual, Page: 80 / 85

Appendix E: Safety Data Sheet for Liquid Nitrogen
80 D52IB001EN-G
LIQUID NITROGEN - N
2
MSDS EFFECTIVE DATE: JUNE 9, 2010
PAGE 3 OF 7
4. FIRST-AID MEASURES (Continued)
EYE EXPOSURE : If liquid is splashed into eyes, or if irritation of the eye develops after exposure to liquid or gas,
open victim's eyes while under gentle running water. Use sufficient force to open eyelids. Have victim "roll" eyes.
Minimum flushing is for 15 minutes. Seek medical assistance immediately, preferably an ophthalmologist.
SKIN EXPOSURE: In case of frostbite remove any clothing that may restrict circulation to any frozen area. Do not
rub frozen parts as tissue damage may occur. As soon as practicable, place any affected area in warm water bath
which has a temperature that does not exceed 105
q
F (40
q
C). NEVER USE HOT WATER. NEVER USE DRY
HEAT. If area of frostbite is extensive, and if possible, remove clothing while showering with warm water. If warm
water is not available, or is impractical to use, wrap the affected parts gently in blankets. Alternatively, if the fingers
or hands are frostbitten, place the affected area of the body in the armpit. Encourage victim to gently exercise the
affected part while being warmed. Seek immediate medical attention.
Frozen tissue is painless and appears waxy, with a possible yellow color. Frozen tissue will become swollen, painful
and prone to infection when thawed. If the frozen part of the body has been thawed by the time medical attention
has been obtained, cover the area with a dry sterile dressing and a large bulky protective covering.
MEDICAL CONDITIONS AGGRAVATED BY EXPOSURE : Pre-existing respiratory conditions may be aggravated
by over-exposure to Liquid Nitrogen
.
RECOMMENDATIONS TO PHYSICIANS : Treat symptoms and reduce over-exposure.
5. FIRE-FIGHTING MEASURES
FLASH POINT: Not applicable.
AUTOIGNITION TEMPERATURE : Not applicable.
FLAMMABLE LIMITS (in air by volume, %):
Lower (LEL): Not applicable.
Upper (UEL): Not applicable.
FIRE EXTINGUISHING MATERIALS : Non-flammable, inert
cryogenic liquid. Use extinguishing media appropriate for
surrounding fire.
RESPONSE TO FIRE INVOLVING CRYOGEN: Cryogenic liquids
can be particularly dangerous during fires because of their potential
to rapidly freeze water. Careless use of water may cause heavy
icing. Furthermore, the relatively warm water greatly increases the
evaporation rate of Nitrogen. If large concentrations of Nitrogen gas
are present, the water vapor in the surrounding air will condense, creating a dense fog that may make it difficult to
find fire exits or equipment. Liquid Nitrogen, when exposed to the atmosphere, will produce a cloud of ice/fog in the
air upon its release.
UNUSUAL FIRE AND EXPLOSION HAZARDS : Nitrogen does not burn; however, containers, when involved in
fire, may rupture or burst in the heat of the fire. Liquid Nitrogen when accidentally released will vaporize rapidly,
forming an oxygen deficient vapor cloud. Evacuate this vapor cloud area. Visibility may be obscured in its vapor
cloud. Pressure in a container can build-up due to heat and it may rupture if pressure relief devices should fail to
function. Contact with cold liquid or gaseous Nitrogen may cause frostbite.
Explosion Sensitivity to Mechanical Impact: Not Sensitive.
Explosion Sensitivity to Static Discharge: Not Sensitive.
SPECIAL FIRE-FIGHTING PROCEDURES : Structural fire-fighters must wear Self-Contained Breathing Apparatus
and full protective equipment. If possible, remove Nitrogen cryogenic containers from fire area or cool with water. Do
not direct water spray at the container vent. Evacuate area. Other information for pre-planning can be found in the
North American Emergency Response Guidebook.
6. ACCIDENTAL RELEASE MEASURES
RESPONSE TO CRYOGENIC RELEASE: Clear the affected area and allow the liquid to evaporate and the gas to
dissipate. After the gas is formed, follow the instructions provided below. Alternatively, to increase the rate of
vaporization, spray large amounts of water on to the leak from an upwind position. If the area must be entered by
emergency personnel, SCBA, leather or insulated gloves, and safety shoes must be worn. Personnel responding to
a release must avoid all contact with the liquid.
Minimum Personal Protective Equipment should be Level B: leather or thermally insulated gloves and Self-
Contained Breathing Apparatus. Locate and seal the source of the leaking gas. Allow the gas, which is lighter
than air to dissipate. Monitor the surrounding area for oxygen level. The atmosphere must have at least 19.5
percent oxygen before personnel can be allowed in the area without Self-Contained Breathing Apparatus.
If leaking incidentally from the container or valve, contact your suppler.
3
0
0
HEALTH
FLAMMABILITY
REACTIVITY
OTHER
NFPA RATING