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

MSDS NAME:HYDROGEN, OXYGEN, NITROGEN MIXTURE
NIIN:01-228-7090
Status Code:A
MSDS Number: CHZBD
=== Responsible Party ===
Company:SCOTT SPECIALTY GASES
Address:ROUTE 611 NORTH
Box:D-11
City:PLUMSTEADVILLE
State:PA
ZIP:18949
Country:US
Info Phone Num:215-766-8861
Emergency Phone Num:215-766-8861
CAGE:51847
=== Contractor Identification ===
Company:SCOTT SPECIALTY GASES
Address:6141 EASTON RD (6141 ROUTE 611)
Box:310
City:PLUMSTEADVILLE
State:PA
ZIP:18934
Country:US
Phone:215-766-8861/ FAX: 215-766-0416
CAGE:51847

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

Name:HYDROGEN (2.4 - 2.6%)
CAS:1333-74-0
RTECS #:MW8900000
Fraction by Wt: 2.5%
Other REC Limits:NONE RECOMMENDED

Name:OXYGEN (19.5 - 21.5%)
CAS:7782-44-7
RTECS #:RS2060000
Fraction by Wt: 20.5%
Other REC Limits:NONE RECOMMENDED

Name:NITROGEN
CAS:7727-37-9
RTECS #:QW9700000
Fraction by Wt: BALANCE
Other REC Limits:NONE RECOMMENDED
ACGIH TLV:ASPHYXIANT; 9596

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

LD50 LC50 Mixture:NOT RELEVANT
Routes of Entry: Inhalation:YES  Skin:NO  Ingestion:NO
Reports of Carcinogenicity:NTP:NO    IARC:NO	OSHA:NO
Health Hazards Acute and Chronic:TARGET ORGANS: NONE. ACUTE- NONE.
    CHRONIC- NONE KNOWN. THESE MIXTURES SHOULD BE CONSIDERED SIMILAR TO
    AIR AND WOULD THEREFORE CAUSE NO SYMPTOMS OF EXPOSURE.
Explanation of Carcinogenicity:NONE
Effects of Overexposure:NONE

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

First Aid:NONE NEEDED.

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

Flash Point:NONE
Lower Limits:NOT RELEVANT
Upper Limits:NOT RELEVANT
Extinguishing Media:USE WATER FOG, CARBON DIOXIDE, FOAM, OR DRY
    CHEMICAL FOR SURROUNDING FIRE. KEEP FIRE-EXPOSED CYLINDERS COOL
    WITH WATER.
Fire Fighting Procedures:AS WITH ANY FIRE, WEAR PROTECTIVE CLOTHING AND
    NIOSH-APPROVED SELF-CONTAINED BREATHING APPARATUS IF NEEDED.
Unusual Fire/Explosion Hazard:THE MIXTURE AT HIGH PRESSURES WILL
    ACCELERATE THE BURNING OF MATERIALS TO A GREATER RATE THAN THEY
    BURN AT ATMOSPHERIC PRESSURE. CYLINDERS MAY RUPTURE.

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

Spill Release Procedures:SHUT OFF SOURCE OF LEAK IF POSSIBLE AND REMOVE
    SOURCE OF HEAT.
Neutralizing Agent:NOT RELEVANT

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

Handling and Storage Precautions:STORE CYLINDERS SECURE, IN COOL, DRY,
    VENTILATED AREA BELOW 125F. PROTECT CYLINDERS FROM PHYSICAL DAMAGE.
    FULL & EMPTY CYLINDERS SHOULD BE SEGREGATED.
Other Precautions:HYDROGEN LOWER EXPLOSION HAZARD IS 4%. VENTING OF AIR
    FROM CYLINDER MUST BE ACCOMPLISHED SLOWLY. USE A "FIRST IN-FIRST
    OUT" INVENTORY SYSTEM. CLOSE VALVE AFTER EACH USE AND WHEN EMPTY.
    USE HAND TRUCK  TO MOVE CYLINDERS.

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

Respiratory Protection:NONE NEEDED.
Ventilation:ADEQUATE
Protective Gloves:LEATHER WHEN HANDLING CYLINDERS
Eye Protection:GOGGLES RECOMMENDED
Other Protective Equipment:SAFETY SHOES WHEN HANDLING CYLINDERS.
Work Hygienic Practices:OBSERVE GOOD INDUSTRIAL HYGIENE PRACTICES AND
    RECOMMENDED PROCEDURES.
Supplemental Safety and Health

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

HCC:G3
NRC/State Lic Num:NOT RELEVANT
Vapor Density:0.97
Spec Gravity:GAS
Viscosity:NOT RELEVANT
Evaporation Rate & Reference:NOT RELEVANT (GAS)
Solubility in Water:0.025
Appearance and Odor:COLORLESS, ODORLESS GAS
Percent Volatiles by Volume:100

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

Stability Indicator/Materials to Avoid:YES
NONE
Stability Condition to Avoid:HEAT SOURCES
Hazardous Decomposition Products:NONE

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

Waste Disposal Methods:DISPOSE OF NON-REFILLABLE CYLINDERS IN
    ACCORDANCE WITH LOCAL, STATE AND FEDERAL REGULATIONS. ALLOW GAS TO
    VENT SLOWLY TO ATMOSPHERE OUTDOOR.

 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.

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