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

MSDS NAME:ELECTRON TUBE BTR-229
NIIN:00-523-9749
Status Code:A
MSDS Number: CKRBK
=== Responsible Party ===
Company:COMMUNICATIONS AND POWER INDUSTRIES INC
Address:150 SOHIER RD
City:BEVERLY
State:MA
ZIP:01915-5595
Country:US
Info Phone Num:978-922-6000  EXT.285
Emergency Phone Num:978-922-6000
Preparer's Name:FRANK E. TROJAN
CAGE:88236
=== Contractor Identification ===
Company:COMMUNICATIONS AND POWER INDUSTRIES INC
Address:150 SOHIER RD
City:BEVERLY
State:MA
ZIP:01915-5595
Country:US
Phone:978-922-6000  EXT.285
Contract Num:SP0960-00-X-F789
CAGE:88236

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

Name:COBALT 60
CAS:7440-48-4
RTECS #:GF8750000
< Wt:1.
OSHA PEL:0.1 MG/M3
ACGIH TLV:0.02 MG/M3

Name:PROMETHIUM 147

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

Routes of Entry: Inhalation:YES  Skin:YES  Ingestion:YES
Reports of Carcinogenicity:NTP:YES    IARC:NO	 OSHA:YES
Health Hazards Acute and Chronic:SIGNIFICANT SKIN CONTACT MAY RESULT IN
    BURNS. RAPID ESTIMATION OF THE AMOUNT OF INTERNAL CONTAMINATION IS
    DIFFICULT OR IMPOSSIBLE WHEN ALPHA OR PURE BETA EMITTERS ARE
    INVOLVED. COBALT 60 AS A METAL: E FFECTS OF OVEREXPOSURE: CONTACT
    DERMATITIS AND BREATHING DIFFICULTIES. CHRONIC OVEREXPOSURE:
    ALLERGIC ASTHMA, RESTRICTED PULMONARY FUNCTIONS, AND INTERNAL
    FIBROSIS MAY BE CAUSED BY LONG-TERM OCCUPATIO NAL EXPOSURE TO
    COBALT AND ITS COMPOUNDS.
Explanation of Carcinogenicity:COBALT 60 AS RADIOACTIVE: CANCER CAUSING
    AGENT: BETA OR GAMMA RAYS. COBALT AS A METAL: COBALT METAL/POWDER
    IS NOT LISTED AS A CARCINOGEN BY THE NTP, IARC, OR OSHA.
Effects of Overexposure:COBALT 60 AS RADIOACTIVE: NAUSEA AND VOMITING
    AND DIARRHEA FOR HIGH ACUTE DOSES. COBALT 60 AS A METAL: CONTACT
    DERMATITIS AND BREATHING DIFFICULTIES. COBALT AS A METAL:
    INHALATION OF COBALT DUST CAN C AUSE PILMONARY SYMPTOMS SUCH AS
    WHEEZING, IRRITATION OF THE UPPER RESPIRATORY TRACT (URT) AND
    HYPERSENSITIVITY REACTIONS (ASTHMA). SKIN CONTACT WITH POWDERED
    COBALT MAY CAUSE ADENITIDES, ESPECIALLY IN	THE CREASES FO THE
    ELBOWS, KNEES, ANKLES, AND NECK. CONTACT WITH EYES MAY CAUSE
    CONJUNCTIVITIS. INGESTION MAY PRODUCE A HOT SENSATION ALONG WITH
    VOMITING, DIARRHEA, AND NAUSEA.
Medical Cond Aggravated by Exposure:COBALT 60 AS RADIOACTIVE: HEALING
    OF DAMAGED TISSUES MAY BE PROLONGED. COBALT AS A METAL: DISORDERS
    OF THE SKIN AND THE UPPER RESPIRATORY TRACT (URT) MAY BE WORSENED
    BY EXPOSURE TO COBALT.

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

First Aid:COBALT AS RADIOACTIVE: DECONTAMINATE THE EXPOSED INDIVIDUAL.
    TRANSPORT TO A HOSPITAL IF NAUSEA AND VOMITING OCCUR IN THE FIRST
    24 HOURS. COBALT AS A METAL: EYES: IMMEDIATELY FLUSH EYES,
    INCLUDING UNDE R THE EYELIDS, GENTLY BUT THOROUGHLY WITH PLENTO OF
    RUNNING WATER FOR AT LEAST 15 MINUTES. SKIN: IMMEDIATELY WASH THE
    AFFECTED AREA WITH SOAP AND WATER. INHALATION: REMOVE THE EXPOSED
    PERSON TO FRESH  AIR, RESTORE AND/OR SUPPORT HIS OR HER BREATHING,
    AS NEEDED. INGESTION: NEVER GIVE ANYTHING BY MOUTH TO SOMEONE WHO
    IS UNCONSCIOUS OR CONVULSING. IF COBALT SALTS ARE INGESTED, GIVE
    ONE TO TWO GLASSES	OF WATER AND INDUCE VOMITING.

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

Spill Release Procedures:WHEN HANDLING BROKEN TUBES WEAR PROTECTIVE
    RUBBER GLOVES AND CLOTHING. AVOID THE POSSIBILITY OF RUBBING
    RADIOACTIVE MATERIAL ONTO THE SKIN. WASH EXPOSED SKIN AFTER
    HANDLING BROKEN TUBES CONTAINING RAD IOACTIVE MATERIALS.
Neutralizing Agent:NO DATA PROVIDED BY RESPONSIBLE PARTY.

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

Respiratory Protection:IF SPILLED, WEAR RADIONUCLIDE CARTRIDGE
    RESPIRATOR.
Ventilation:PLACE AFFECTED COMPONENT IN LOCAL EXHAUST.
Protective Gloves:DISPOSABLE GLOVES.
Eye Protection:GOGGLES
Work Hygienic Practices:WASH HANDS.
Supplemental Safety and Health
DEVICE CONTAINS 0.7 UCI COBALT 60 AND 30 UCI PROMETHIUM 147.

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

HCC:A2

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

Stability Indicator/Materials to Avoid:YES
CORROSIVES.
Stability Condition to Avoid:NOT APPLICABLE.
Hazardous Decomposition Products:UNBOUND PROMETHIUM-147.

===================  Toxicological Information	===================

Toxicological Information:TARGET ORGANS: RESPIRATORY SYSTEM, SKIN,
    BLADDER, KIDNEYS AND EYES. PRIMARY ENTRY: SKIN CONTACT, INHALATION.
    ACUTE EFFECTS: CONTACT DERMATITI & BREATHING DIFFICULTIES. CHRONIC
    EFFECTS: ALLERGIC ASTHMA , RESTRICTED PULMONARY FUNCTIONS AND
    INTERTIAL FIBROSIS MAY BE CAUSED BY LONG TERM OCCUPATIONAL EXPOSURE
    TO COBALT OR ITS COMPOUNDS.

=====================  Ecological Information  =====================

Ecological:NO DATA PROVIDED BY RESPONSIBLE PARTY.

===================  MSDS Transport Information  ===================

Transport Information:NO DATA PROVIDED BY RESPONSIBLE PARTY.

=====================  Regulatory Information  =====================

SARA Title III Information:NO DATA PROVIDED BY RESPONSIBLE PARTY.
Federal Regulatory Information:NO DATA PROVIDED BY RESPONSIBLE PARTY.
State Regulatory Information:NO DATA PROVIDED BY RESPONSIBLE PARTY.

=======================  Other Information  =======================

 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 ***