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Section III - Hazardous Ingredients (1) I M P O R T A N T ! This section covers the materials from which this product is manufactured. The fumes and gases produced during welding with the normal use of this product are covered by Section VII; see it for industrial hygiene information. CAS Number shown is representative for the ingredients listed. (1) The term “hazardous” in “Hazardous Ingredients” should be interpreted as a term required and defined in the Hazardous Products Act and does not necessarily imply the existence of any hazard. Ingredients: CAS No. Wt. % TLV mg/m3 LD50 (Route/Species) LC50 mg/m3 (Route/Species) Aluminum oxide and/or Bauxite 1344-28-1 30-60 10 Not Available Not Available Manganese and/or manganese alloys and compounds (as Mn) 7439-96-5 10 0.2 9 g/kg (oral/rat) 2.3 LCLo (inhalation/human) Titanium dioxides 13463-67-7 5-10 10 Not Available Not Available Silicates and other binders 1344-09-8 5-10 10* 1153 mg/kg (oral/rat) Not Available Fluorides (as F) 7789-75-5 5-10 2.5 4250 mg/kg (oral/rat) Not Available Silicon and/or silicon alloys and compounds (as Si) 7440-21-3 1-5 10* Not Available Not Available Iron 7439-89-6 1-5 10* Not Available Not Available Magnesite 1309-48-4 1-5 10 Not Available Not Available Mineral silicates 1332-58-7 1-5 5** 590 g/kg LDLo (oral/rat) reproductive Not Available Quartz 14808-60-7 0.1-1 #0.05** 200 mg/kg LDLo (intratracheal/rat) 300 LCLo (inhalation/human) Crystalline-Silica (cristobalite) 14464-46-1 0.1-1 #0.025* * 10,000 mg/kg (oral/rat) Not Available Zirconium alloys and compounds (as Zr) 12004-83-0 0.1-1 5 Not Available Not Available Notes: (*) Not listed. Nuisance value maximum is 10 milligrams per cubic meter. TLV value for iron oxide is 5 milligrams per cubic meter. (**) As respirable dust. Value for respirable quartz is 0.1 milligrams per cubic meter. (LDLo, (#) LCLo) Lowest published toxic concentration. Crystalline silica (quartz) is on the IARC (International Agency for Research on Cancer) and NTP (National Toxicology Program) lists as posing a carcinogenic riskto humans. Section IV - Physical Data Physical data such as odor, vapor pressure, density, evaporation rate and freezing or boiling points are not listed as they are not applicable to this product and its use. Section V - Hazard Data Non Flammable; Welding arc and sparks can ignite combustibles and flammable products. See CSA W117.2 Section 9.7 as referenced in Section VIII. Product is inert, no special handling or spill procedures required. Rev 9/07 (CONTINUED ON SIDE TWO) Product: Lincolnweld 780 Date: 1/15/2009 Section VI - Health Hazard Data and Toxicological Properties Acute Lethality Values: LC50 means the concentration of a substance in air that when administered by means of inhalation over a specified length of time inan animal assay, is expected to cause the death of 50% of a defined animal population. LD50 means the single dose of a substance that, when administered by a defined route in an animal assay, is expected to cause the death of 50% ofa defined animal population. Threshold Limit Value: The ACGIH recommended general limit for Welding Fume NOS - (Not Otherwise Specified) is 5 mg/m3. The TLV-TWA is the time-weighted average concentration for a normal 8-hour workday and a 40 hour workweek, to which nearly all workers may be repeatedly exposed, day after day, without adverse effect. See Section VII for specific fume constituents which may modify this TLV. Threshold Limit Values are figures published by the American Conference of Government Industrial Hygienists. Effects of Overexposure: Electric arc welding may create one or more of the following health hazards: Fumes and Gases can be dangerous to your health. Common entry is by inhalation. Other possible routes are skin contact and ingestion. Short-term (acute) overexposure to welding fumes may result in discomfort such as metal fume fever, dizziness, nausea, or dryness or irritation of nose, throat, or eyes. May aggravate pre-existing respiratory problems (e.g. asthma, emphysema). Exposure to extremely high levels of fluorides can cause abdominal pain, diarrhea, muscular weakness, and convulsions. In extreme cases it can cause loss of consciousness and death. Long-term (chronic) overexposure to welding fumes can lead to siderosis (iron deposits in lung) and may affect pulmonary function. Manganese overexposure can affect the central nervous system, resulting in impaired speech and movement. Bronchitis and some lung fibrosis have been reported. Repeated exposure to fluorides may cause excessive calcification of the bone and calcification of ligaments of the ribs, pelvis and spinal column. May cause skin rash. Overexposure to crystalline silica present in dust from this material can cause severe lung damage (silicosis). Respiratory overexposure to airborne crystalline silica is known to cause silicosis, a form ofdisabling pulmonary fibrosis which can be progressive and may lead to death. Crystalline silica is on the IARC (I...