1. CEILING LIMIT
2. BRAZING FILLER METAL ON BRAZED TOOLS
3. STEL (SHORT TERM EXPOSURE LIMIT) FOR TUNGSTEN 10 mg/m3
4. FINAL RULE TIME WEIGHTED AVERAGE LIMIT 0.05 mg/m3

APPEARANCE & ODOR: DARK GRAY METAL / NO ODOR

SPECIFIC GRAVITY (H20 = 1): 11.0 – 15.5

PERCENT VOLATILE BY VOLUME: 0 SOLUBILITY IN WATER: INSOLUBLE

BOILING POINT: N/A EVAPORATION RATE: N/A

VAPOR PRESSURE: N/A VAPOR DENSITY (AIR = 1): N/A

HOW BEST MONITORED: AIR SAMPLE

FLASH POINT: N/A TEST METHOD USED: - FLAMMABLE LIMITS: N/A LEL: - UEL: -

HARD CEMENTED CARBIDE PRODUCT IS NOT A FIRE HAZARD. TUNGSTEN CARBIDE PRODUCT POWDER AND DUST GENERATED IN HARD METAL GRINDING OPERATIONS IS EXPECTED TO BE A FIRE AND EXPLOSIVE HAZARD IF ALLOWED TO ACCUMULATE AND SUBJECTED TO HIGH TEMPERATURES OR IGNITION SOURCES.

EXTINGUISHING MEDIA: FOR POWDER FIRES, USE ABC TYPE FIRE EXTINGUISHER, WATER, SODIUM CHLORIDE, SODA ASH, DRY SAND OR DRY DOLOMITE.

SPECIAL FIRE FIGHTING PROCEDURES: FOR A POWDER FIRE CONFINED TO A SMALL AREA, USE RESPIRATOR APPROVED FOR TOXIC DUSTS AND FUMES. FOR A LARGE FIRE, FIRE FIGHTERS SHOULD USE SELF CONTAINED BREATHING APPARATUS. AVOID BREATHING FUMES FROM BURNING MATERIALS.

UNUSUAL FIRE & EXPLOSION HAZARD: POWDER AND DUST MAY PRESENT A FIRE OR EXPLOSION HAZARD UNDER RARE FAVORING CONDITIONS OF PARTICLE SIZE, DISPERSION AND STRONG IGNITION SOURCE. HOWEVER THIS IS NOT EXPECTED TO BE A PROBLEM UNDER NORMAL CONDITIONS.

STABILITY: STABLE CONDITIONS TO AVOID: N/A

INCOMPATIBILITY: CONTACT OF DUST

MATERIALS TO AVOID: STRONG ACIDS WITH STRONG OXIDIZERS MAY CAUSE FIRE OR EXPLOSION.

CONDITIONS TO AVOID: N/A

HAZARDOUS DECOMPOSITION PRODUCTS: NONE

HAZARDOUS POLYMERIZATION: WILL NOT OCCUR

NOTE: DURING ROUTINE OPERATION AND USE, CEMENTED CARBIDE PRODUCTS DO NOT PRESENT INHALATION, INGESTION, SKIN CONTACT OR OTHER CHEMICAL HAZARDS. HOWEVER, NON-ROUTINE OPERATIONS SUCH AS GRINDING, CUTTING AND BRAZING OF CEMENTED PRODUCTS MAY RELEASE DUST OR FUMES, WHICH MAY PRESENT HEALTH HAZARDS IF THE EXPOSURE LIMITS DESCRIBED IN SECTION II HAZARDOUS INGREDIENTS ARE EXCEEDED. THE HEALTH HAZARDS DESCRIBED BELOW RELATE TO THESE NON-ROUTINE OPERATIONS, AS WELL AS EXPOSURE TO COMPONENTS OF POWDER.

ROUTES OF EXPOSURE: GRINDING CEMENTED CARBIDE PRODUCT WITH COBALT OR NICKEL BINDER MAY PRODUCE POTENTIALLY HAZARDOUS DUST WHICH CAN BE INHALED, SWALLOWED OR COME INTO CONTACT WITH THE SKIN OR EYES.

EFFECTS OF OVEREXPOSURE:

INHALATION: DUST CAN CAUSE IRRITATION OF THE NOSE AND THROAT. IT ALSO HAS THE POTENTIAL FOR CAUSING TRANSIENT OR PERMANENT RESPIRATORY DISEASE INCLUDING OCCUPATIONAL.

INHALATION: ASTHMA AND INTERSTITIAL FIBROSIS IN A SMALL PERCENTAGE OF EXPOSED INDIVIDUALS. INTERSTITIAL FIBROSIS CAN LEAD TO PERMANENT DISABILITY OR DEATH. IF PULMONARY SYMPTOMS DEVELOP (IE. PRODUCTIVE COUGH, WHEEZING, SHORTNESS OF BREATH, CHEST TIGHTNESS AND WEIGHT LOSS) SEEK MEDICAL ATTENTION.

SKIN CONTACT: CAN CAUSE IRRITATION OF AN ALLERGIC RASH DUE TO COBALT SENSITIZATION.

EYE CONTACT: CAN CAUSE MILD PAIN OR IRRITATION.

INGESTION: REPORTS OUTSIDE THE CARBIDE INDUSTRY SUGGEST THAT INGESTION OF SIGNIFICANT AMOUNTS OF COBALT HAS THE POTENTIAL FOR CAUSING BLOOD, HEART AND OTHER ORGAN PROBLEMS.

EMERGENCY & FIRST AID PROCEDURES: APPLICABLE FOR DUST OR MIST.

INHALATION: IF SYMPTOMS OF PULMONARY INVOLVEMENT LISTED ABOVE DEVELOP, REMOVE FROM EXPOSURE AND SEEK MEDICAL ATTENTION.

SKIN CONTACT: IF IRRITATION OR RASH OCCURS, THOROUGHLY WASH AFFECTED AREA WITH SOAP AND WATER AND ISOLATE FROM EXPOSURE. IF IRRITATION PERSISTS, SEEK MEDICAL ATTENTION.

EYE CONTACT: IF IRRITATION OCCURS, FLUSH WITH COPIUS AMOUNTS OF WATER. IF IRRITATION PERSISTS, SEEK MEDICAL ATTENTION.

INGESTION: IF SUBSTANTIAL QUANTITIES ARE SWALLOWED, DILUTE WITH A LARGE AMOUNT OF WATER, INDUCE VOMITING AND SEEK MEDICAL ATTENTION.

CARCINOGENIC ASSESSMENT (NTP ANNUAL REPORT, IARC MONOGRAPHS, OTHER):

NICKEL HAS BEEN IDENTIFIED AS A SUSPECTED CARCINOGEN BY NTP, IARC, AND OSHA. NONE OF THE OTHER COMPONENTS OF THIS MATERIAL HAVE BEEN IDENTIFIED AS KNOWN OR SUSPECTED CARCINOGENS BY NTP, IARC, AND OSHA.

STEPS TO BE TAKEN IN CASE MATERIAL IS RELEASED OR SPILLED: VENTILATE AREA OF SPILL. CLEAN UP USING METHODS WHICH AVOID DUST GENERATION SUCH AS VACUUM (WITH APPROPRIATE FILTER TO PREVENT AIRBORNE DUST LEVELS WHICH EXCEED THE PEL OR TLV). WET DUST MOP OR WET CLEAN UP. IF AIRBORNE DUST IS GENERATED, USE AN APPROPRIATE NIOSH APPROVED RESPIRATOR.

WASTE DISPOSAL METHOD: DISPOSE OF IN ACCORDANCE WITH APPROPRIATE GOVERNMENT REGULATIONS. MAY BE SOLD AS SCRAP FOR RECLAIM.

RESPIRATORY PROTECTION: USE AN APPROPRIATE NIOSH/MSHA APPROVED RESPIRATOR, IF AIRBORNE DUST CONCENTRATIONS EXCEED THE APPROPRIATE PEL OR TLV. ALL APPROPRIATE REQUIREMENTS SET FORTH IN 29 CFR 1910.134 SHOULD BE MET.

VENTILATION: USE LOCAL EXHAUST VENTILATION WHICH IS ADEQUATE TO LIMIT PERSONAL EXPOSURE TO AIRBORNE DUST LEVELS WHICH DO NOT EXCEED THE PEL OR TLV. IF SUCH EQUIPMENT IS NOT AVAILABLE, USE RESPIRATORS AS SPECIFIED ABOVE.

PROTECTIVE GLOVES: PROTECTIVE GLOVES OR BARRIER CREAM ARE RECOMMENDED WHEN CONTACT WITH POWDER, DUST OR GRINDER MIST IS LIKELY. PRIOR TO APPLYING THE BARRIER CREAM OR USE OF PROTECTIVE GLOVES, WASH THOROUGHLY.

EYE PROTECTION: SAFETY GLASSES WITH SIDE SHIELDS OR GOGGLES ARE RECOMMENDED.

OTHER PROTECTIVE EQUIPMENT: N/A

PRECAUTIONS TO BE TAKEN IN HANDLING AND STORAGE: MAINTAIN GOOD HOUSEKEEPING PROCEDURES TO PREVENT DUST ACCUMULATION DURING GRINDING. AVOID DUST INHALATION AND DIRECT SKIN CONTACT WITH DUST.

OTHER PRECAUTIONS: CLEAN UP USING METHODS WHICH AVOID DUST GENERATION SUCH AS A VACUUM (WITH APPROPRIATE FILTERS TO PREVENT AIRBORNE DUST). WET DUST MOP OR WET CLEAN UP, IF AIRBORNE DUST IS GENERATED, USE AN APPROPRIATE NIOSH/MSHA APPROVED RESPIRATOR.

WASH HANDS THOROUGHLY AFTER HANDLING, BEFORE EATING OR SMOKING. WASH EXPOSED SKIN AT THE END OF THE WORK SHIFT. DO NOT SHAKE CLOTHING, RAGS OR OTHER ITEMS TO REMOVE DUST. DUST SHOULD BE REMOVED BY WASHING OR VACUUMING (WITH APPROPRIATE FILTERS) THE CLOTHING, RAGS, OR OTHER ITEMS. PERIODIC MEDICAL EXAMINATIONS ARE RECOMMENDED FOR INDIVIDUALS REGULARLY EXPOSED TO CARBIDE DUST OR GRINDING MIST.

ALTHOUGH CAL VALVES HAS ATTEMPTED TO PROVIDE CURRENT AND ACCURATE INFORMATION HEREIN, CAL VALVES MAKES NO REPRESENTATIONS REGARDING THE ACCURACY OR COMPLETENESS OF THE INFORMATION AND ASSUMES NO LIABILITY FOR ANY LOSS, DAMAGE OR INJURY OF ANY KIND WHICH MAY RESULT FROM OR ARISE OUT OF THE USE OF OR RELIANCE ON THE INFORMATION BY ANY PERSON. THIS MSDS IS PROVIDED TO USERS AND SUPPLIERS OF CAL VALVES ONLY TO MEET THE INFORMATIONAL REQUIREMENTS OF SECTION 1910.1200

IN CASE OF QUESTIONS, PLEASE CALL: RONALD BEAUCHAMP 1-800-523-5962

COMPANY NAME: CAL GRINDING, INC. DBA CAL VALVES

TITLE OF INDIVIDUAL: ENGINEERING MANAGER ISSUE DATE: APRIL 8, 2002

REVISED: AUGUST 27, 2008