Excalibur 308/308H -16

2.1 Classification of the substance or mixture

Aspiration Product Not classified Other efects Organic polym ers m ay be used in the anufacture of various welding consum ables. Overexposure to their decom position byproducts m ay result in a condition known as polym er fum e fever. Polym er fum fever usually occurs within 4 to 8 hours of exposure with th e presentation of flu like sym ptom s, including m ild pulm onary irritation with or without an increase in body tem perature. Signs of exposure can include an increase in white blood cell count. Resolution of sym ptom typically s occurs quickly, usually not la sting longer than 48 hours. Sym ptom s related to the physical, chem ical and toxicological characteristics under condition of use Inhalation Specified substance(s) M anganese Overexposure to m anganese fum affect es ay the brain and centr al nervous system , resulting in poor cordination, difficulty speaking, and arm or leg trem or. This condition can be irreversible. SDS_ North Am erica - 2000000493 Chrom ium (VI) Chrom ates m ay cause ulceration, perforation of the nasal septum , and severe irritation of the bronchial tubes and lungs. Liver dam age and allergic reactions, including skin rash, have ben reported. Asthm a has been reported in som e sensitized individuals. Skin contact m result in ay irritation, ulceration, sensitization, and contact derm atitis. Chrom ates contain the hexavalent form of chrom ium . Hexavalent chrom ium and its com pounds are on the IARC (International Agency for Research on Cancer) and NTP (Nati onal Toxicology Program ) lists as posing a cancer risk to hum ans. Nickel Nickel and its com pounds are on the IARC and NTP lists as posing respiratory cancer risk, and are skin sensitizers with sym ptom s ranging from slight itch to severe derm atitis. Additional toxicological Inform ation under the conditions of use Acute toxicity Oral Specified substance(s) Chrom ium (VI) LD 50 (Rat ): 27 - 59 m g/kg Inhalation Specified substance(s) Carbon dioxide LC Lo (Hum an , 5 m in ): 9000 ppm Carbon m onoxide LC 50 (Rat , 4 h ): 1300 ppm Nitrogen dioxide LC 50 (Rat , 4 h ): 8 ppm Ozone LC Lo (Hum an , 30 m in ): 50 pm Chrom ium (VI) LC 50 (Rat , 4 h ): 33 - 70 m g/m 3 IARC M onographs on the Evaluation of Carcinogenic Risks to Hum ans Specified substance(s) Chrom ium (VI) Overall evaluation: 1. Carcinogenic to hum ans. Nickel Overall evaluation: 2B . Possibly carcinogenic to hum ans. Chrom ium oxide Overall evaluation: 3. Not classifiable as to carcinogenicity hum ans. US. National Toxicology Program (NTP) Report on Carcinogens Specified substance(s) Chrom ium (VI) Known To Be Hum an Carcinogen. Nickel Reasonably Anticipated to be a Hum Carcinogen. an US.

Environmental hazards

Fish Product Not classified. Specified substance(s) Nickel LC 50 (Fathead m inow (Pim ephales prom elas) , 96 h ): 2.916 m g/l SDS_ North Am erica - 2000000493 Calcium fluoride LC 50 (96 h ): 340 m g/l Sodium silicate LC 50 (W estern m osquitofish (Gam busia affinis) , 96 h ): 1,800 m g/l M olybdenum LC 50 (Rainbow trout,donaldson trout (Oncorhynchus m ykiss) , 96 h ): 80 m g/l Coper and/or copper LC 50 (Fathead m inow (Pim ephales prom elas) , 96 h ): 1.6 m g/l alloys and com pounds (as Cu) Cobalt and com pounds LC 50 (Rainbow trout,donaldson trout (Oncorhynchus m ykiss) , 28 d ): > (as Co) 0.17 - < 15.61 m g/l Aquatic Invertebrates Product Not classified. Specified substance(s) Nickel EC 50 (W ater flea (Daphnia m agna) , 48 h ): 1 m g/l M anganese EC 50 (W ater flea (Daphnia m agna) , 48 h ): 40 m g/l Calcium fluoride EC 50 (Daphnia m agna; Daphnia sp. , 48 h ): 270 m g/l Sodium silicate EC 50 (W ater flea (Ceriodaphnia dubia) , 48 h ): 2.94 - 49.01 m g/l Coper and/or copper EC 50 (W ater flea (Daphnia m agna) , 48 h ): 0.102 m g/l alloys and com pounds (as Cu) Carboxym ethyl cellulose, EC 50 (W ater flea (Ceriodaphnia dubia) , 48 h ): 46.04 - 165.37 m g/l sodium salt Chronic hazards to the aquatic Fish Product Not classified. Aquatic Invertebrates Product Not classified. Toxicity to Aquatic Plants Product Not classified. Specified substance(s) Coper and/or copper LC 50 (Gren algae (Scenedesm dim us orphus) , 3 d ): 0.0623 m g/l alloys and com pounds (as Cu) Persistence and Degradability Biodegradation Product No data available. Bioaccum ulative potential Bioconcentration Factor (BCF) Product No data available. Specified substance(s) Nickel Zebra m ussel (Dreissena polym orpha) , Bioconcentration Factor (BCF) 5,000 - 10,00 (Lotic ) Bioconcentration factor calculated using dry weight tissue conc Coper and/or copper Blue -gren algae (Anacystis nidulans) , Bioconcentration Factor (BCF) alloys and com pounds 36.01 (Static ) (as Cu) Cobalt and com pounds Brown shrim p (Penaeus aztecus) , Bioconcentration Factor (BCF) > 2,250 - (as Co) < 2,500 (Static ) M obility in soil No data available. 13.

Disposal

considerations SDS_ North Am erica - 2000000493 General inform ation: The generation of waste should be avoided or m inim ized whenever possible. W hen practical, recycle in an environm entally acceptable, regulatory com pliant m anner. Dispose of non -recyclable products in accordance with all aplicable Federal, State, Provinc ial, and Local requirem ents. instructions: Disp osal of this product m ay be regulated as a Hazardous W aste. The welding consum able and/or by -product from the welding process (including, but not lim ited to slag, dust, etc.) m contain ay levels of leachable heavy m etals such as Barium or Chrom ium Prior . to disposal, a representative sam ple m ust be analyzed in accordance with US EPA's Toxicity Characteristic Leaching Procedure (TCLP) to determ ine if any constituents exist above regulated threshold levels. Discard any product, residue, disposable container , or liner in an environm entally acceptable m anner according to Federal, State and Local Regulations. Contam inated Packaging Dispose of contents/container to an apropriate treatm ent and