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

MSDS NAME:HYDROGEN (1-2%) IN AIR
NIIN:00-203-1492
MSDS Number: CDGNN
=== Responsible Party ===
Company:GAS TECH INC. JOHNSON INSTRUMENT DIV
Address:8407 CENTRAL AVE
City:NEWARK
State:CA
ZIP:94560-3431
Country:US
Info Phone Num:510-794-620/510-745-8700
Emergency Phone Num:800-535-5053
CAGE:51906
=== Contractor Identification ===
Company:GAS TECH INC. JOHNSON INSTRUMENT DIV
Address:8445 CENTRAL AVE
Box:City:NEWARK
State:CA
ZIP:94560-3431
Country:US
Phone:510-794-6200
CAGE:51906

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

Name:HYDROGEN
CAS:1333-74-0
RTECS #:MW8900000
Fraction by Wt: <2%
Other REC Limits:NONE RECOMMENDED

Name:AIR
RTECS #:AX5275000
Fraction by Wt: 98%+
Other REC Limits:NONE RECOMMENDED

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

LD50 LC50 Mixture:NONE SPECIFIED BY MANUFACTURER.
Routes of Entry: Inhalation:YES  Skin:NO  Ingestion:NO
Reports of Carcinogenicity:NTP:NO    IARC:NO	OSHA:NO
Health Hazards Acute and Chronic:ACUTE/CHRONIC:NONE IDENTIFIED.
Effects of Overexposure:NONE SPECIFIED BY MANUFACTURER.
Medical Cond Aggravated by Exposure:NONE IDENTIFIED. TARGET ORGANS:NONE
    IDENTIFIED.

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

First Aid:RESPIRATORY:PROVIDE FRESH AIR OR OXYGEN & CONSULT PHYSICIAN.

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

Flash Point:NA
Autoignition Temp:Autoignition Temp Text:NP
Lower Limits:NA
Upper Limits:NA
Extinguishing Media:USE METHODS APPRORPIATE TO SURROUNDING FIRE.
Fire Fighting Procedures:NONE.
Unusual Fire/Explosion Hazard:COMPRESSED GAS CYLINDERS MAY EXPLO IN
    HEAT OF FIRE.WITHDRAW IMMED IN CASE OF RISING SOUND FROM VENTING
    SAFETY DEVICE.

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

Spill Release Procedures:EVACUATE & VENTILATE AREA.
Neutralizing Agent:NONE SPECIFIED BY MANUFACTURER.

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

Handling and Storage Precautions:USE SAFE HNDLG PRACT FOR HNDLG OF
    COMPRESSED GAS CYLS.DON'T PUNCTURE.STORE IN COOL DRY AREA.USE SAFE
    STORAGE PRACT FOR STORAGE OF COMPRESS GAS CYLS.
Other Precautions:EXPOSURE TO TEMPERATURES ABOVE 150F MAY OPERATE
    EXCESS-PRESSURE VALVE.EMPLOYER IS RESPONSIBLE FOR DETERMINING
    PRECAUT/DANGERS OF MATL FOR SPECIFIC APPLICATIONS OF PRODUCT.

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

Respiratory Protection:NONE NECESSARY.
Ventilation:NONE NECESSARY.
Protective Gloves:NOT REQUIRED.
Eye Protection:SAFETY GLASSES RECOMMENDED.
Other Protective Equipment:NONE SPECIFIED BY MANUFACTURER.
Work Hygienic Practices:NONE SPECIFIED BY MANUFACTURER.
Supplemental Safety and Health

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

HCC:G3
Boiling Pt:B.P. Text:NA
Melt/Freeze Pt:M.P/F.P Text:NA
Decomp Temp:Decomp Text:NP
Vapor Pres:NA
Vapor Density:1.0
Spec Gravity:NA
pH:NP
Viscosity:NP
Evaporation Rate & Reference:NA
Solubility in Water:SLIGHT
Appearance and Odor:COLORLESS, ODORLESS GAS.
Percent Volatiles by Volume:NP
Corrosion Rate:NP

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

Stability Indicator/Materials to Avoid:YES
NONE IDENTIFIED.
Stability Condition to Avoid:NONE IDENTIFIED.
Hazardous Decomposition Products:NONE IDENTIFIED.

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

Waste Disposal Methods:EMPTY CONTNRS MAY BE DISCARDED AS METAL
    REFUSE,OBSERVING LOCAL, STATE AND FEDERAL REGULATIONS.DO NOT
    INCINERATE.

 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 ***