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

MSDS NAME:ARCAIR AIR CARBON ARC ELECTRODES, 375-SERIES
NIIN:00N086701
MSDS Number: CHFRN
=== Responsible Party ===
Company:TWECO PRODUCTS INC
Address:4200 WEST HARRY STREET
Box:12250
City:WICHITA
State:KS
ZIP:67277
Country:US
Info Phone Num:316-942-8303
Emergency Phone Num:316-942-8303
Preparer's Name:DENNIS WILSON
CAGE:89381
=== Contractor Identification ===
Company:TWECO PRODUCTS, INC.
Address:4200 WEST HARRY ST.
Box:12250
City:WICHITA
State:KS
ZIP:67277
Country:US
Phone:316-946-8308;316-942-1421
CAGE:89381

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

Name:CARBON; (GRAPHITE, SYNTHETIC)
CAS:7440-44-0
RTECS #:FF5250100
Fraction by Wt: 20-90%
OSHA PEL:15 MG/M3 TDUST
ACGIH TLV:2 MG/M3 TDUST

Name:GRAPHITE; (GRAPHITE, NATURAL)
CAS:7782-42-5
RTECS #:MD9659600
Fraction by Wt: 20-90%
OSHA PEL:15 MPPCF
ACGIH TLV:2 MG/M3 RDUST

Name:COPPER (SARA 313) (CERCLA)
CAS:7440-50-8
RTECS #:GL5325000
Fraction by Wt: 10-30%
OSHA PEL:0.1MG/M3 FUME;1 DUST
ACGIH TLV:0.2 MG/M3 FUME
EPA Rpt Qty:5000 LBS
DOT Rpt Qty:5000 LBS

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

LD50 LC50 Mixture:NONE SPECIFIED BY MANUFACTURER.
Routes of Entry: Inhalation:YES  Skin:YES  Ingestion:NO
Reports of Carcinogenicity:NTP:NO    IARC:NO	OSHA:NO
Health Hazards Acute and Chronic:HEALTH AND PHYSICAL HAZARDS ASSOCIATED
    WITH AIR CARBON ARC ELECTRODES ARE ATTRIBUTED TO FUMES GENERATED
    WHEN ELECTRODES ARE USED AND CONSUMED. INHALATION:BRONCHITIS, LUNG
    DEPOSITS AND TISSUE DAMAGE WH ICH MAY BE IRREVERSIBLE. EXPOSURE TO
    ULTRA-VIOLET ARC RAYS CAN RESULT IN KERATOCONJUNCTIVITIS, CAUSING
    (EFTS OF OVEREXP)
Explanation of Carcinogenicity:NOT RELEVANT
Effects of Overexposure:HLTH HAZ:INFLAMMATION, BLURRED VISION,
    HEADACHE, "SUNBURN". SIGNS AND SYMPTOMS OF EXPOSURE:BREATHING
    DIFFICULTY, HEADACHE, NAUSEA, DRYNESS OR IRRITATION OF NOSE,
    THROAT, EYES. BURNING SENSATION OF SKI N OR EYES. UNCONSCIOUSNESS.
Medical Cond Aggravated by Exposure:RESPIRATORY PROBLEMS.

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

First Aid:INGEST:CALL MD IMMEDIATELY . EYES:IMMEDIATELY FLUSH W/POTABLE
    WATER FOR A MINIMUM OF 15 MINUTES, SEEK ASSISTANCE FROM MD .
    INHAL:REMOVE TO FRESH AIR. IF BREATHING IMPAIRED, ASSISTED RESPIR
    ATION MAY BE REQUIRED. SKIN:TREAT U.V. EXPOSURE SIMILAR TO SEVERE
    SUNBURN, SEEK MEDICAL ATTENTION.

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

Extinguishing Media:MEDIA SUITABLE FOR SURROUNDING FIRE .
Fire Fighting Procedures:USE NIOSH APPROVED SCBA & FULL PROTECTIVE
    EQUIPMENT .
Unusual Fire/Explosion Hazard:NONE.

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

Spill Release Procedures:SWEEP OR PICK UP. BE ALERT TO "HOT ENDS".
Neutralizing Agent:NONE SPECIFIED BY MANUFACTURER.

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

Handling and Storage Precautions:STORE IN DRY AREA. ELECTRODES EXPOSED
    TO MOISTURE MAY EXPLODE VIOLENTLY IF USED. DRY MOIST RODS BY BAKING
    AT 300F FOR TEN HOURS.
Other Precautions:READ & UNDERSTAND "ANSI Z49.1"; SUBPART Q OF OSHA 29
    CFR 1910.252; "SAFETY IN WELDING & CUTTING" BY AWS. CAUTION:USE IN
    CONFINED AREAS CAN RESULT IN CARBON MONOXIDE POISONING/DEATH. NIOSH
    APPROVED AIR  SUPPLIED RESP IS REC WHEN USED INDOORS.

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

Respiratory Protection:NIOSH APPROVED AIR SUPPLIED OR FUME RESPIRATOR
    SHOULD BE USED IF VENTILATION IS INSUFFICIENT.
Ventilation:LOC EXHST &/OR MECH AS REQD TO REDUCE FUMES GENERATED BY
    EACH SPECIFIC APPLICATION BELOW ACGIH TLV. AIR SAMPLING(SUPDAT)
Protective Gloves:WELDER'S GLOVES.
Eye Protection:ANSI APPRVD CHEM WORKERS GOGGS &(SUPDAT)
Other Protective Equipment:ANSI APPROVED EYE WASH FOUNTAIN & DELUGE
    SHOWER . FOOTWEAR SUITABLE FOR METAL WORKING. CLOTHING:DARK, (SUPP
    DATA)
Work Hygienic Practices:OPERATOR TRAINED TO AVOID ELECTRICAL SHOCK &
    U.V. RAY EXPOSURE.
Supplemental Safety and Health
VENT:TO DETERMINE CORRECTIVE MEASURES. EYE:FULL LGTH FSHLD  OR WELDER'S
    HELMET W/#12 OR DARKER LENS. OTHER PROT EQUIP:SUBSTANTIAL APRONS,
    ETC. SEE Z49.1.

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

Solubility in Water:NOT SOLUBLE
Appearance and Odor:SOLID, COPPER COATED BLACK ROD; NO NOTABLE ODOR.

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

Stability Indicator/Materials to Avoid:YES
NONE KNOWN.
Hazardous Decomposition Products:CARBON MONOXIDE, CARBON DIOXIDE,
    TRACES OF COPPER FUME (OZONE, NITROGEN OXIDE FROM ELECTRIC ARC & UV
    RAYS).

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

Waste Disposal Methods:DISPOSAL MUST BE I/A/W FEDERAL, STATE & LOCAL
    REGULATIONS . SOLID LANDFILL IF LOCAL REGULATIONS ALLOW.

 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 ***