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E. I. du Pont de Nemours and Company Haskell Laboratory for Toxicology and Industrial Medicine HASKELL LABORATORY REPORT NO. 397-79 AR226-2878 Material Tested: (fp Haakell No. : 12,943 Sam for Material Submitted by: Chemicals, Dyes &;Pigments Dept. Jackson Laboratory, Chambers Works Other Codes: PRIMARY SKIN IRRITATION AND SENSITIZATION TESTS ON GUINEA PIGS Procedure; A range-finding study was conducted with 3 male albino guinea pigs to test tation potential. A 20% solution of the test material in water was the highest conce to the skin irritation potential of the glacial acetic acid solvent. No skin irritatio at this level.+ The primary irritation test was conducted on 10 unexposed guinea pigs by applying rubbing in 0.05 ml each of a 20% and a 2% (v/v) solution of the test material in water shoulder skin. The induction phase for sensitization was a series of 4 sacral intradexmal inject a 1.0% solution in physiological saline. 1 each week beginning 2 d'.ys after the test f tation. After a 13-day rest period, the test animals were challenged for sensitization by lightly rubbing in 0.05 ml each of a 20% and a 2% (v/v) solution of teat material in w intact shoulder akin. At the same time 10 unexposed guinea pigs (controls) of the sam identical topical applications. Resultss Concentration in water Primary Irritation Test 24 Hours 48 Hours Challenge Test 24 Hours 48 Hours Sensitization Response Ratio** at 20% Concentration 0/10 ____Teat Animals (10 Animals In. Avg, Wt. 10 Animals Final Avg. Wt. 20%t 2%+ _4_01__g (10 Control A Animals - In. 693 g) 10 Animala Fina 20% 10 neg. 10 neg. 10 neg. 10 neg. 10 neg. 10 neg. 10 neg. 10 neg. 10 neg. 10 neg. Company Sanitized. Does not contain TSC yr---- - 2 - S\TOnf|rv I----------S (H-12, 943) caused no irritation or aensitization when tested as a (v/v) solution in water on the shaved, intact skin of guinea p*igs. No unucual dermatitis hazard is expected from the use of U--_--__--__B-Tat concentrati leas in water. Compositioni **Sensitization is defined as a significant score increase at challenge over the respo from the same amount applied initially or on the concurrent controls. Range Finding Results Solution (%) intact Guinea Pig Skin 20 3 Neg. 10 3 Neg. 2 . 3 Neg. 0.2 3 Neg. Report by; RLP/aph .Date Issuedi July ZQ. Report No. 397-7< 1979 Approved by; _C>^^ ^. Gerald L Chief, Acute Company Sanitized. Goes noi contain TSC