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

MSDS NAME:A-1025 HELIUM MIXTURE
NIIN:00D002328
MSDS Number: BHYBR
=== Responsible Party ===
Company:UNION CARBIDE CORP., LINDE DIV.
Address:39 OLD RIDGEBURY RD
City:DANBURY
State:CT
ZIP:06817-0001
Country:US
Info Phone Num:304-744-3487
Emergency Phone Num:304-744-3487
CAGE:36346
=== Contractor Identification ===
Company:UNION CARBIDE CORP   LINDE DIV
Address:39 OLD RIDGEBURY RD
Box:City:DANBURY
State:CT
ZIP:06817-0001
Country:US
Phone:800-822-4357; 304-744-3487
CAGE:36346

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

Name:HELIUM
CAS:7440-59-7
RTECS #:MH6520000
Fraction by Wt: 90%
Other REC Limits:ASPHYXIANT

Name:ARGON
CAS:7440-37-1
RTECS #:CF2300000
Fraction by Wt: 7.5%
Other REC Limits:SIMPLE ASPHYXIANT
ACGIH TLV:ASPHYXIANT; 9192

Name:CARBON DIOXIDE
CAS:124-38-9
RTECS #:FF6400000
Fraction by Wt: 2.5%
Other REC Limits:<5000 PPM
OSHA PEL:5000 PPM
ACGIH TLV:5000PPM/30000STEL;93

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

Routes of Entry: Inhalation:YES  Skin:NO  Ingestion:NO
Reports of Carcinogenicity:NTP:NO    IARC:NO	OSHA:NO
Health Hazards Acute and Chronic:THIS GAS IS AN ASPHYXIANT. IT HAS NO
    OTHER HAZARDS OF ITS OWN, BUT IS INTENDED TO BE USED IN WELDING
    OPERATIONS WHICH DO POSE HAZARDS. SEE LINDE'S "PRECAUTIONS AND SAFE
    PRACTICES FOR ELECTRIC WELDING  AND CUTTING" L52-529. ALSO SEE
    HAZARDS ASSOCIATED WITH THE WELDING ROD BEING USED.
Explanation of Carcinogenicity:NONE OF THE COMPOUNDS IN THIS PRODUCT IS
    LISTED BY IARC, NTP, OR OSHA AS A CARCINOGEN.
Effects of Overexposure:INHALATION:DIFFICULTY IN BREATHING, CHOKING,
    DIZZINESS,LOSS OF CONSCIOUSNESS.
Medical Cond Aggravated by Exposure:NONE GIVEN BY MANUMACTURER.

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

First Aid:INHALATION:REMOVE TO FRESH AIR. RESTORE BREATHING OR GIVE
    OXYGEN AS NECESSARY. CONSULT A PHYSICIAN.

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

Flash Point:NON-FLAMMABLE
Extinguishing Media:PRODUCT IS NON FLAMMABLE. EXTINGUISH FIRE WITH
    MEDIA APPROPRIATE FOR SOURCE OF FIRE.
Fire Fighting Procedures:FIRE FIGHTERS SHOULD USE NIOSH APPROVED SCBA &
    FULL PROTECTIVE EQUIPMENT WHEN FIGHTING CHEMICAL FIRE. USE WATER
    SPRAY TO COOL NEARBY CONTAINERS EXPOSED TO FIRE.
Unusual Fire/Explosion Hazard:CONTAINER MAY EXPLODE IN FIRE.

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

Spill Release Procedures:VENTILATE AREA. USE SELF CONTAINED BREATHING
    APPARATUS. IF SPILL (LEAK) IS LARGE ENOUGH, EVACUATE THE AREA.
Neutralizing Agent:NONE

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

Handling and Storage Precautions:STORE IN A COOL, DRY, WELL VENTILATED
    AREA. KEEP CONTAINERS TIGHTLY CLOSED WHEN NOT IN USE. PROTECT
    CONTAINERS FROM PHYSICAL DAMAGE.
Other Precautions:NONE

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

Respiratory Protection:USE RESPIRATOR APPROPRIATE FOR WELDING FUME
    DURING WELDING OPERATION. USE NIOSH/MSHA APPROVED AIR SUPPLIED
    RESPIRATOR OR SELF CONTAINED BREATHING APPARATUS WHEN THERE IS A
    GAS LEAK.
Ventilation:GENERAL ROOM VENTILATION IS NORMALLY ADEQUATE. USE LOCAL
    EXHAUST IF NECESSARY TO CONTROL EXPOSURE BELOW PEL/TLV.
Protective Gloves:WELDERS GLOVES
Eye Protection:WELDERS FACE SHIELD OR GOGGLES
Other Protective Equipment:BODY PROTECTION AS DICTATED BY THE WELDING
    OPERATION.
Work Hygienic Practices:USE GOOD WELDER'S HYGIENE PRACTICE. WASH
    THOROUGHLY BEFORE EATING OR DRINKING.
Supplemental Safety and Health
SEE ANSI BOOKLET Z49.1;"SAFETY IN WELDING AND CUTTING" AND NFPA
    BULLETIN 51B "CUTTING AND WELDING PROCESSES". MSDS NO L-4713-B.

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

HCC:G3
Vapor Pres:GAS
Vapor Density:0.266
Spec Gravity:GAS
Evaporation Rate & Reference:GAS
Solubility in Water:NEGLIGIBLE
Appearance and Odor:CLEAR COLORLESS GAS, ODORLESS
Percent Volatiles by Volume:100

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

Stability Indicator/Materials to Avoid:YES
NONE
Stability Condition to Avoid:HIGH TEMPERATURES THAT OVER PRESSURE
    CYLINDER
Hazardous Decomposition Products:THIS GAS DOES NOT DECOMPOSE UNDER
    ORDINARY CONDITIONS. ITS USE IN WELDING WILL NOT ELIMINATE WELDING
    HAZARDS.

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

Waste Disposal Methods:DISPOSE I/A/W ALL FEDERAL, STATE AND LOCAL
    REGULATIONS.

 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 ***