Lincoln Electric 45KPOP Manuel d'utilisation et d'entretien télécharger pdf (Page 9)

SILVER BRAZING ALLOYS (BARE & FLUX-COATED WIRE or RODS)

PAGE 9 OF 12

11. TOXICOLOGICAL INFORMATION (Continued)

REPRODUCTIVE TOXICITY INFORMATION: Listed below is information concerning the effects of these products and their

constituents on the human reproductive system.

Mutagenicity: These components are not reported to produce mutagenic effects in humans. Animal mutation data are

available for Boric Acid and Nickel (constituents of these products); these data were obtained during clinical studies on

specific animal tissues exposed to high doses of this compound.

Embryotoxicity

: These components are not reported to produce embryotoxic effects in humans.

Teratogenicity

: These components are not reported to cause teratogenic effects in humans. Clinical studies on test

animals exposed to relatively high doses of Copper and Nickel (constituents of these products) indicate teratogenic

effects.

Reproductive Toxicity

: These components are not reported to cause reproductive effects in humans. Clinical studies on

test animals exposed to relatively high doses of Boric Acid and Copper (constituents of these products) indicate adverse

reproductive effects.

A mutagen

is a chemical, which causes permanent changes to genetic material (DNA) such that the changes will propagate

through generational lines.

An embryotoxin is a chemical, which causes damage to a developing embryo (i.e., within the first eight

weeks of pregnancy in humans), but the damage does not propagate across generational lines.

A teratogen is a chemical, which

causes damage to a developing fetus, but the damage does not propagate across generational lines. A reproductive toxin

any substance, which interferes in any way with the reproductive process.

BIOLOGICAL EXPOSURE INDICES: Currently, there are Biological Exposure Indices (BEIs) determined for the Fluoride

Compound component of the Flux Coating (as a Fluoride).

BIOLOGICAL EXPOSURE INDICES (BEIs) for components of these products are as follows:

CHEMICAL: DETERMINANT SAMPLING TIME BEI

FLUORIDES:

Fluorides in urine

Prior to shift

End of shift

3 mg/g creatinine

10 mg/g creatinine

12. ECOLOGICAL INFORMATION

ALL WORK PRACTICES MUST BE AIMED AT ELIMINATING ENVIRONMENTAL CONTAMINATION.

ENVIRONMENTAL STABILITY: The metal components of these products occur naturally in the environment and are

expected to persist in the environment for an extended period of time. Components of these products will react with water

and air to form a variety of stable metal oxides and inorganic compounds. Additional environmental data are available as

follows:

BORIC ACID: Water solubility = 1 g/ 18 mL (cold), 1 g/ 4 mL (boiling).

COPPER: Solubility: Insoluble. There is no evidence of any biotransformation for copper compounds. Copper is accumulated by all plants and animals.

BCF Algae = 12; plants = 1,000; invertebrate = 1,000, fish = 667 and fish =200 (Soluble copper salts).

NICKEL: Water solubility: Insoluble. Nickel is stable in air at ordinary temperature and is not affected by water. No data were found to suggest that nickel

is involved in any biological transformation in the aquatic environment.

SILVER: Solubility: Insoluble in water. Many silver salts are only slightly soluble and so silver cations will rapidly be reduced to lower levels. The Biological

Half-Life for silver is a few days for animals and up to 50 days for humans.

ZINC: Solubility: Insoluble in water. Biological Half-Life for normal humans 162-500 days. Bioconcentration: The Bioconcentration Factor in edible

portions of Crassostrea virgina, adult oyster) is 16,700 (total zinc).

EFFECT OF MATERIAL ON PLANTS or ANIMALS: The components of these products occur naturally in the environment

and are essential for plant and animal life. This product is not expected to cause adverse effects on plant or animal life.

Specific data on test animals are available but are not presented in this Material Safety Data Sheet.

EFFECT OF CHEMICAL ON AQUATIC LIFE: These products are not expected to cause adverse effects on aquatic life.

Additional aquatic toxicity data are available as follows:

BORIC ACID:

(trout eggs) = 100 ppm/ soft

(trout eggs) = 79 ppm/ hard

(catfish eggs) = 155 ppm/ soft

(catfish eggs) = 22 ppm/ hard

(goldfish eggs) = 46 ppm/ soft

(goldfish eggs) = 75 ppm/ hard

(Daphnia magna) = 133 mg/L/ 48 hours

COPPER: Copper is concentrated by plankton by 1000 or more. Copper

may concentrate to toxic level in the food chain

SILVER: 0.1 ppm is toxic to bacteria and aquatic life. Discharge into marine

waters should not exceed 1/20 of 96 hour LC

, 0.250.025 mg/kg/day.

ZINC: Odorless zinc poisoning causes inflamed gills in fish. Laboratory

studies of Atlantic salmon, rainbow trout, carp, and goldfish have shown

avoidance reactions by these fish to zinc in water.

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Lincoln Electric 45KPOP Manuel d'utilisation et d'entretien Page 9

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