MATERIAL SAFETY DATA SHEET



                                                            BIPHENYLS)

                         (POLYCHLORINATED



COMPOSITION/INFORMATION ON INGREDIENTS



Ingredients Name: polychlorinated biphenyls (PCBs)



HAZARD IDENTIFICATION



Reports of Carcinogenicity: YES



HEALTH HAZARDS ACUTE AND CHRONIC



   ?    Eyes: Moderately irritating to eye tissues.



   ?    Skin: Can be absorbed through intact skin, may cause de-fatting, potential for chloracne.



   ?    Inhalation: Possible liver injury.



   ?    Ingestion: Slightly toxic; reasonably anticipated to be carcinogenic.



EFFECTS OF OVER-EXPOSURE



Can cause dermatological symptoms; however, these are reversible upon removal of exposure

source.



FIRST AID MEASURES



   ?  Eyes: Irrigate immediately with copious quantities of running water for at least 15 minutes

       if liquid or solid PCBs get into them.



   ?  Skin: Contaminated clothing should be removed and the skin washed thoroughly with soap

       and water. Hot PCBs may cause thermal burns.



   ?  Inhalation: Remove to fresh air; if skin rash or respiratory irritation persists, consult a

       physician (if electrical equipment arcs over, PCBs may decompose to produce hydrochloric

       acid).



   ?  Ingestion: Consult a physician. Do not induce vomiting or give any oily laxatives. (If large

       amounts are ingested, gastric lavage is suggested).



FIRE FIGHTING MEASURES: Flash Point: >141 oC (285.8 oF)



EXTINGUISHING MEDIA: PCBs are fire-resistant compounds.

FIRE-FIGHTING PROCEDURES



Standard fire-fighting wearing apparel and self-contained breathing apparatus should be worn when

fighting fires that involve possible exposure to chemical combustion products. Fire fighting

equipment should be thoroughly cleaned and decontaminated after use.



UNUSUAL FIRE/EXPLOSION HAZARD



If a PCB transformer is involved in a fire-related incident, the owner of the transformer is required

to report the incident. Consult and follow appropriate federal, provincial and local regulations.



Note: When askarel liquid becomes involved in a fire, toxic by-products of combustion are

typically produced including polychlorinated dibenzofurans and polychlorinated dibenzodioxins,

both known carcinogens. The structures of these chemical species are as follows:









Note: 2,3,7,8-tetrachloro-dibenzo-p-dioxin is one of the most potent teratogenic, mutagenic and

carcinogenic agents known to man.



SPILL RELEASE PROCEDURES



Cleanup & disposal of liquid PCBs are strictly regulated by the federal government. Ventilate area.

Contain spill/leak. Remove spill by means of absorptive material. Spill clean-up personnel should

use proper protective clothing. All wastes and residues containing PCBs should be collected,

containerized, marked and disposed of in the manner prescribed by applicable federal, provincial

and local laws.



HANDLING AND STORAGE PRECAUTIONS



Care should be taken to prevent entry into the environment through spills, leakage, use,

vaporization, or disposal of liquid. Avoid prolonged breathing of vapours or mists. Avoid contact

with eyes or prolonged contact with skin. Comply with all federal, provincial and local regulations.

OTHER PRECAUTIONS



Federal regulations require PCBs, PCB items, storage areas, transformer vaults, and transport

vehicles to be appropriately labelled.



RESPIRATORY PROTECTION



Use OHSA approved equipment when airborne exposure limits are exceeded. Full facepiece

equipment is recommended and, if used, replaces need for face shield and/or chemical splash

goggles. The respirator use limitations specified by the manufacturer must be observed.



VENTILATION



Provide natural or mechanical ventilation to control exposure levels below airborne exposure levels.



PROTECTIVE GLOVES: Wear appropriate chemical resistant gloves to prevent skin contact.



EYE PROTECTION: Wear chemical splash goggles and have eye baths available.



OTHER PROTECTIVE EQUIPMENT



Wear appropriate protective clothing. Provide a safety shower at any location where skin contact

can occur.



WORK HYGIENIC PRACTICES



Wash thoroughly after handling. Supplemental safety and health : none



PHYSICAL/CHEMICAL PROPERTIES



    ?    Vapour pressure: (mm Hg @100 oF) 0.005 - 0.00006



    ?    Viscosity: (CENTISTOKES) 3.6 - 540



    ?    Stability indicator/materials to avoid: Yes



    ?    Stability Condition to Avoid: PCBs are very stable, fire-resistant compounds.



HAZARDOUS DECOMPOSITION PRODUCTS



Carbon monoxide, carbon dioxide, hydrogen chloride, phenolics, aldehydes, furans, dioxins



WASTE DISPOSAL METHODS



Consult the applicable PCB regulations prior to any disposal of PCBs or PCB-contaminated items.