CBS V3000AB - FIRST AID; First Aid Procedures for Exposure; Specific Hazards and Precautions

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SAFETY
Boiling, Splashing and Spurting
Introducing equipment which is at room temperature into liquid nitrogen is always somewhat hazardous.
Beware of splashing and “boiling” which may occur. Never dip a hollow tube into liquid nitrogen; it may
spurt liquid nitrogen.
Compatibility
Liquid nitrogen should ony be handled and transported in approved containers. Liquid nitrogen may alter
the physical characteristics of many materials, make them brittle and fail. Liquid nitrogen should never be
used in combination with other substances or materials without knowing what the result will be. When in
doubt, contact a competent authority.
Fire in Oxygen-Enriched Atmostphere
Liquid Nitrogen can condense oxygen from the atmosphere. Liquid oxygen creates potential-
ly ammable or explosive conditions by greatly increasing the combustibility of many materials
(e.g. solvents, hydrocarbons).
FIRST AID
In the event a person has frostbite from liquid nitrogen, the following rst aid treatment should be given
while awaiting the arrival of medics or a doctor.
1. If the material has contaced skin or eyes, ood those areas with large quantities of unheated water
and protect frozen areas with loose, bulky, dry, and sterile dressings.
2. If the skin is blistered or there is a chance that the eyes have been aected, seek medical help
immediatley.
SPECIFIC FIRST AID PROCEDURES: PROMPT MEDICAL ATTENTION IS MANDATORY IN ALL CASES OF
OVEREXPOSURE TO NITROGEN. RESCUE PERSONNEL SHOULD BE EQUIPPED WITH SELFCONTAINED
BREATHING APPARATUS.
INHALATION: Conscious persons should be assisted to an uncontaminated area and inhale fresh air. Quick
removal from the contaminated area is most important. Unconscious persons should be moved to an
uncontaminated area, given mouth-to-mouth resuscitation and supplemental oxygen. Further treatment
should be symptomatic and supportive.
SKIN OR EYE CONTACT: Flush aected areas with lukewarm water. DO NOT USE HOT WATER. A physician
should see the patient promtly, especially if the cryogenic “burn” has resulted in blistering