=====================  Product Identification  =====================

MSDS NAME:NITROGEN IN HELIUM 0.0001% TO 50%, G-154
Status Code:A
MSDS Number: CKWJV
=== Responsible Party ===
Company:AIRCO, DIVISION OF THE BOC GROUP, INC.
Address:575 MOUNTAIN AVENUE
City:MURRAY HILL
State:NJ
ZIP:07974
Country:US
Info Phone Num:201-464-8100
Emergency Phone Num:800-424-9300
Chemtrec Ind/Phone:(800)424-9300
CAGE:IO644
=== Contractor Identification ===
Company:AIRCO, DIVISION OF THE BOC GROUP, INC.
Address:575 MOUNTAIN AVENUE
City:MURRAY HILL
State:NJ
ZIP:07974
Country:US
Phone:201-464-8100
CAGE:IO644

=============  Composition/Information on Ingredients  =============

Name:HELIUM. (SIMPLE ASPHYXIANT - MAINTAIN OXYGEN LEVELS ABOVE
    19.5 PERCENT).
CAS:7440-59-7
RTECS #:MH6520000
Minumum % Wt:50.
Maxumum % Wt:99.99

Name:NITROGEN. (SIMPLE ASPHYXIANT - MAINTAIN OXYGEN LEVELS ABOVE
    19.5 PERCENT).
CAS:7727-37-9
RTECS #:QW9700000
Minumum % Wt:0.
Maxumum % Wt:50.

=====================  Hazards Identification  =====================

Routes of Entry: Inhalation:YES  Skin:YES  Ingestion:NO
Reports of Carcinogenicity:NTP:NO    IARC:NO	OSHA:NO
Health Hazards Acute and Chronic:SKIN AND EYE CONTACT: CONTACT WITH
    LIQUID PRODUCT MAY CAUSE TISSUE FREEZING.
Effects of Overexposure:SEE HEALTH HAZARDS. FIRST AID (CON'T): A
    PHYSICIAN SHOULD SEE THE PATIENT PROMPTLY IF  CRYOGENIC "BURN"
    RESULTED IN BLISTERING OF DERMAL SURFACE OR DEEP TISSUE FREEZING.
    EYE: NEVER INTRODUCE OINTMENT/ OIL INTO EYES WITHOUT MEDICAL
    ADVICE. INCASE OF FREEZING OR CRYOGENIC 'BURNS' CAUSED BY RAPIDLY 
    EVAPORATING LIQUID, DO NOT WASH EYES WITH HOT OR EVEN TEPID WATER!
    REMOVE VICTIM FROM SOURCE OF CONTAMI NATION. OPEN EYELIDS WIDE TO
    ALLOW LIQUID TO EVAPORATE. IF PAIN PRESENT, REFER VICTIM TO
    OPHTHALMOLOGIST FOR TREATMENT & FOLLOW UP. IF VICTIM CANNOT
    TOLERATE LIGHT, PROTECT EYES WITH A LIGHT BANDAGE.	INGEST: CONTACT
    MD IMMEDIATELY .

=======================  First Aid Measures  =======================

First Aid:PROMPT MEDICAL ATTENTION IS MANDATORY IN ALL CASES OF
    OVEREXPOSURE. RESCUE PERSONNEL SHOULD BE EQUIPPED W/NIOSH APPROVED
    SELF-CONTAINED BREATHING APPARATUS. INHAL: VICTIM SHOULD BE
    ASSISTED TO UNCONTA MINATED AREA & INHALE FRESH AIR. QUICK REMOVAL
    FROM CONTAMINATED AREA IS MOST IMPORTANT. UNCONSCIOUS PERSON SHOULD
    BE MOVED TO AN UNCONTAMINATED AREA, & IF BREATHING HAS STOPPED,
    ADMINISTER ARTIFICIAL  RESUSCITATION & SUPPPLEMENTAL OXYGEN.
    FURTHER TREATMENT SHOULD BE SYMPTOMATIC & SUPPORTIVE. SKIN: FOR
    DERMAL CONTAC OR FROSTBITE: REMOVE CONTAMINATED CLOTHING & FLUSH
    AFFECTED AREAW/LUKEWARM WATER. D O NOT USE HOT WATER! 
    (SIGNS/SYMPTOMS)

=====================  Fire Fighting Measures  =====================

Extinguishing Media:MEDIA SUITABLE FOR SURROUNDING FIRE .
Fire Fighting Procedures:USE NIOSH APPROVED SCBA AND FULL PROTECTIVE
    EQUIPMENT .
Unusual Fire/Explosion Hazard:NEVER CARRY A COMPRESSED GAS CYLINDER OR
    A CONTAINER OF A GAS IN A CRYOGENIC LIQUID FORM IN AN ENCLOSED
    SPACE SUCH AS A CAR TRUNK, VAN OR STATION WAGON. A LEAK CAN RESULT
    IN A FIRE, EXPLOSION, ASPHYXI ATION OR A TOXIC EXPOSURE.

==================  Accidental Release Measures  ==================

Spill Release Procedures:EVACUATE ALL PERSONNEL FROM AFFECTED AREA. USE
    APPROPRIATE PROTECTIVE EQUIPMENT. IF A LEAK IS IN USER'S EQUIPMENT,
    BE CERTAIN TO PURGE PIPING WITH AN INERT GAS PRIOR TO ATTEMPTING
    REPAIRS. IF LEAK IS  IN CONTAINER OR CONTAINER VALVE, CONTACT
    CHEMTREC FOR EMERGENCY ASSISTANCE OR YOUR CLOSEST AIRCO LOCATION.

======================	Handling and Storage  ======================

Handling and Storage Precautions:USE ONLY IN WELL-VENTILATED AREAS.
    VALVE PROTECTION CAPS MUST REMAIN IN PLACE UNLESS CONTAINER IS
    SECURED WITH VALVE PROTECTION OUTLET PIPED TO USE POINT. DO NOT
    DRAG, SLIDE OR ROLL CYLINDERS. USE A S UITABLE HAND TRUCK FOR
    CYLINDER MOVEMENT. USE A PRESSURE REDUCING REGULATOR WHEN  (OTHER
    PREC)
Other Precautions:HDLNG/STOR (CONT'D): CONNECTING CYLINDER TO LOWER
    PRESSURE (<3000 PSIG) PIPING OR SYSTEMS. DO NOT HEAT CYLINDER BY
    ANY MEANS TO INCREASE THE DISCHARGE RATE OF PRODUCT FROM THE
    CYLINDER. USE A CHECK VA LVE OR TRAP IN THE DISCHARGE LINE TO
    PREVENT HAZARDOUS BACK FLOW INTO THE CYLINDER. PROTECT CYLINDER S  
    (OTHER INFO).

=============  Exposure Controls/Personal Protection  =============

Respiratory Protection:NIOSH APPROVED POSITIVE PRESSURE AIR LINE WITH
    MASK OR SELF-CONTAINED BREATHING APPARATUS SHOULD BE AVAILABLE FOR
    EMERGENCY USE.
Ventilation:LOCAL EXHAUST TO PREVENT ACCUMULATION OF HIGH
    CONCENTRATIONS SO AS TO REDUCE THE OXYGEN LEVEL IN THE AIR TO LESS
    THAN 19.5 PERCENT.
Protective Gloves:IMPERVIOUS GLOVES . PROTECTIVE GLOVES OF ANY MATERIAL
    (MFR).
Eye Protection:ANSI APPROVED SAFETY GOGGLES AND FULL FACESHIELD .
Other Protective Equipment:DELUGE SHOWER MEETING ANSI DESIGN CRITERIA .
    SAFETY SHOES.
Supplemental Safety and Health
SYNONYMS: G-154.   PRODUCT CAS NO.: NOT ESTABLISHED. CHEMICAL FAMILY:
    GAS MIXTURES. CHEM FORMULA: N2 IN HE.

==================  Physical/Chemical Properties  ==================

Solubility in Water:NEGLIGIBLE.
Appearance and Odor:COLORLESS GAS.  ODORLESS.

=================  Stability and Reactivity Data  =================

Stability Indicator/Materials to Avoid:YES
THIS GAS MIXTURE IS NONCORROSIVE AND MAY BE USED WITH ALL MATERIALS OF
    CONSTRUCTION.
Stability Condition to Avoid:STABLE.

===================  Toxicological Information	===================

Toxicological Information:HELIUM: SIMPLE ASPHYXIANT - MAINTAIN OXYGEN
    LEVELS ABOVE 19.5 PERCENT.	NITROGEN: SIMPLE ASPHYXIANT - MAINTAIN
    OXYGEN LEVELS ABOVE 19.5 PERCENT.

=====================  Ecological Information  =====================

Ecological:N/P.

====================  Disposal Considerations  ====================

Waste Disposal Methods:DO NOT ATTEMPT TO DISPOSE OF WASTE OR UNUSED
    QUANTITIES. RETURN IN THE SHIPPPING CONTAINER PROPERLY LABELED,
    WITH ANY VALVE OUTLET PLUGS OR CAPS SECURE AND VALVE PROTECTION CAP
    IN PLACE TO AIRCO FOR P ROPER DISPOSAL.

===================  MSDS Transport Information  ===================

Transport Information:PROPER SHIPPING NAME: COMPRESSED GAS N.O.S.  
    HAZARD CLASS: NONFLAMMABLE GAS.  DOT IDENTIFICATION NUMBER: UN1956.
     DOT SHIPPING LABEL: NONFLAMMABLE GAS.

=====================  Regulatory Information  =====================

SARA Title III Information:SARA HAZARD CLASSES: SUDDEN RELEASE OF
    PRESSURE HAZARD.
Federal Regulatory Information:COMPRESSED GAS CYLINDERS SHOULD NOT BE
    REFILLED EXCEPT BY QUALIFIED PRODUCERS OF COMPRESSED GASES.
    SHIPMENTS OF A COMPRESSED GAS CYCLINDER WHICH HAS NOT BEEN FILLED
    BY THE OWNER OR WITH HIS (WRITTEN)	CONSENT IS A VIOLATION OF
    FEDERAL LAW (49CFR).
State Regulatory Information:N/P.

=======================  Other Information  =======================

 Disclaimer (provided with this information by the compiling agencies):
 This information is formulated for use by elements of the Department
 of Defense.  The United States of America in no manner whatsoever,
 expressly or implied, warrants this information to be accurate and
 disclaims all liability for its use.  Any person utilizing this
 document should seek competent professional advice to verify and
 assume responsibility for the suitability of this information to their
 particular situation.

*** END OF RECORD ***