TRI-GAS, INC -- HELIUM  -- 6830-00-169-0789
<pre>=====================  Product Identification  =====================

Product ID:HELIUM
MSDS Date:10/01/1985
FSC:6830
NIIN:00-169-0789
=== Responsible Party ===
Company Name:TRI-GAS, INC
Address:4545 FULLER DRIVE, SUITE 100
City:IRVING
State:TX
ZIP:75038
Country:US
Info Phone Num:214-650-1700
Emergency Phone Num:800-442-7412
CAGE:TRIGA
=== Contractor Identification ===
Company Name:TRI-GAS, INC
Address:4545 FULLER DRIVE, SUITE 100
Box:City:IRVING
State:TX
ZIP:75038
Country:US
Phone:214-650-1700
CAGE:TRIGA

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

Ingred Name:HELIUM
CAS:7440-59-7
RTECS #:MH6520000
Other REC Limits:NONE RECOMMENDED
ACGIH TLV:ASPHYXIANT; 9394

=====================  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:HELIUM:SIMPLE ASPHYXIANT.EFFECTS OF
    EXPO TO HIGH CONC SO AS TO DISPLACE OXY IN AIR NECESASRY FOR
    LIFE:HEAD,DIZZ,LABORED BREATHING & EVENTUAL UNCONSC.BREATHING
    MIXTURES OF HELIUM W/ADEQUATE OXY TO SUPP ORT LIFE MODIFIES VOICE
    SOUND AS THAT IT IS HIGHER "PITCHED".NON-TOXIC BUT LG AMTS IN
    CONFINED AREA CAN DISPLACES OXYGEN
Explanation of Carcinogenicity:PER MSDS:LISTED AS CARCINOGEN OR
    POTENTIAL CARCINOGEN:NTP/IARC/OSHA:NO.
Effects of Overexposure:HEADACHE, DIZZINESS, LABORED BREATHING,
    EVENTUAL UNSCONSCIOUSNESS. MODIFIES VOICE SOUND SO THAT IT IS
    HIGHER "PITCHED".
Medical Cond Aggravated by Exposure:NONE SPECIFIED BY MANUFACTURER.

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

First Aid:PROMPT MED ATTN MANDATORY IN ALL CASES OF OVEREXPO TO
    HELIUM.RESCUE PERSONNEL SHOULD BE EQUIPPED W/SCBA.INHAL:CONSC
    PERSONS SHOULD BE ASSISTED TO UNCONTAMIN AREA.INHAL FRESH AIR.QUICK
    REMOVAL FROM CON TAMIN AREA IS MOST IMPORTANT.UNSCONSC PERSONS
    SHOULD BE MOVED TO UNCONTAMIN AREA GIVEN MOUTH-TO-MOUTH
    RESUSCITATION & SUPPLEMENTAL OXY.MED ASSISTANCE SHOULD BE SOUGHT
    IMMED.

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

Extinguishing Media:NON-FLAMMABLE GAS, INERT GAS. HOWEVER USE
    APPROPRIATE EXTINGUISHING MEDIA FOR SURROUNDING FIRES.

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

Spill Release Procedures:EVACUATE ALL PERSONNEL FROM AFFECTED AREA. USE
    APPROPRIATE PROTECTIVE EQUIPMENT. IF LEAK IS IN CONTAINER OR
    CONTAINER VALVE, CONTACT THE CLOSEST TRI-GAS INC LOCATION.

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

Handling and Storage Precautions:USE ONLY IN WELL VENTI AREA.VAL PROT
    CAPS MUST REMIAN IN PLACE UNLESS CNTNR SECURED W/VAL OUTLET PIPED
    TO USE PT.DO NOT DRAG/SLIDE/ROLL CYL;USE HANDTK
Other Precautions:STORE UPRIGHT/FIRMLY SECURED.SEGRAGATE EMPTY/FULL.USE
    PRESS REDUCING REG WHEN CONNECTING CYL TO LOWER PRESS PIPING TO
    SYS.KEEP OXY LEVELS @<18 MOLAR% @NORMAL ATM PRESSURE WHICH IS
    EQUIVALENT TO PARTIA L PRESSURE OF 135MM HG(ACGIH 1984-86).

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

Respiratory Protection: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 OXYGEN LEVEL IN AIR TO LESS THAN
    18MOLAR %.
Protective Gloves:ANY MATERIAL
Eye Protection:SAFETY GGOLES OR GLASSES
Other Protective Equipment:SAFETY SHOES.
Work Hygienic Practices:NONE SPECIFIED BY MANUFACTURER.
Supplemental Safety and Health
LIQ DEN @BPT:7.801LB/FT3(124.96KG.M3).PRECAUTIONS:DO NOT HEAT CYL SO TO
    INCREASE DISCHARGE RATE OF MATL FRM CYL.USE CHECK VALV/TRAP IN
    DISCHARGE LINE TO PREVENT HAZ BACKFLOW INTO CYL.PROTECT FRM PHYSI
    CAL DAMAGE.STORE IN COOL DRY WELL VENTILATED AREA AWAY FROM HEAVILY
    TRAFFICKED AREA/EMERGENCY EXITS.

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

HCC:G3
Boiling Pt:B.P. Text:-452F,-269C
Melt/Freeze Pt:M.P/F.P Text:-456F,-271C
Vapor Pres:<-450F
Vapor Density:0.0104@59F
Spec Gravity:0.14 @70F
Solubility in Water:0.0086,BUNSEN COEFF
Appearance and Odor:COLORLESS, ODORLESS GAS.

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

Stability Indicator/Materials to Avoid:YES
NONE. HELIUM IS NON-CORROSIVE & MAY BE USED WITH ANY COMMON STRUCTURAL
    MATERIAL.
Stability Condition to Avoid:DO NOT ALLOW TEMP WHERE CYL ARE STORED TO
    EXCEED 130F(54C).
Hazardous Decomposition Products:NONE

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

Waste Disposal Methods:DO NOT ATTEMPT TO DISPOSE OF WASTE/UNUSED
    QUANT.RETURN IN SHIPPING CNTNR PROPERLY LABEL W/ANY VALVE OUTLET
    PLUGS/CAPS SECURED & VALVE PROT CAP IN PLACE TO TRI-GAS FOR PROPER
    DISPOSAL.EMERGENCY DISPOSA L CONTACT TRI-GAS.DO NOT REFILLED
    CYL-VIO FED LAW.

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