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

MSDS NAME:8438/4-400A
NIIN:00-243-5018
MSDS Number: BDMXV
=== Responsible Party ===
Company:VARIAN ASSOCIATES EIMAC DIV
Address:301 INDUSTRIAL WAY
City:SAN CARLOS
State:CA
ZIP:94070-2603
Country:US
CAGE:06980
=== Contractor Identification ===
Company:VARIAN ASSOCIATES INC EIMAC DIVISION
Address:301 INDUSTRIAL WAY
City:SAN CARLOS
State:CA
ZIP:94070-2603
Country:US
Phone:415-592-1221
CAGE:06980

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

Name:THORIUM 232
CAS:7440-29-1
RTECS #:XO6400000

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

Effects of Overexposure:HAZ DEGREE DEPENDS ON TYPE/QUANT  OF RADIATION.
    LATENT EFFECTS:SOMATIC/GENETIC DAMAGE.

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

First Aid:USE FIRST AID. CALL MEDICAL EMERGENCY CARE. REMOVE/ISOLATE
    COMTAMINATED CLOTHING.SHOWER VICTIM(S) W. SOAP & H*2O. DETAIN
    PERSONNEL/EQUIPMENT EXPOSED. ADVISE MEDICAL PERSONNEL THAT
    VICTIM(S) MAY BE CON TAMINATED.

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

Extinguishing Media:EXTINQUISH W. AGENT SUITABLE FOR SURROUNDING FIRE.
Fire Fighting Procedures:WEAR CHEMICAL PROTECTIVE SUIT WITH SELF CONTD
    BRTHG APP.
Unusual Fire/Explosion Hazard:SOME OF MATL MAY BURN. CONT MAY EXPLODE
    IN HEAT OF FIRE.

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

Spill Release Procedures:HANDLE BROKEN DEVICE WITH GLOVES AND FORCEPS.

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

Handling and Storage Precautions:SHIELD ACCORDING TO EMITTED RADIATION.
    PROTECT FROM FILM/FILM PLATES. KEEP CONTAINERS CLOSED. STORE IN
    AREA FOR RADIOACTIVE MATERIALS.

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

Respiratory Protection:SCBA IF INVOLVED IN FIRE, OTHERWISE GAS MASK.
Ventilation:PROVIDE MECHAN(GEN/LOCAL EXHAUST)VENT TO MAINTN