Code of Federal Regulations: Containing a Codification of Documents of General Applicability and Future Effect as of December 31, 1948, with Ancillaries and IndexDivision of the Federal Register, the National Archives, 1998 Special edition of the Federal Register, containing a codification of documents of general applicability and future effect ... with ancillaries. |
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Page 48
... percent NaOH solution . A stir bar is added to the flask , the flask is capped , and the solution is stirred for 1 hour at room temperature . At the end of this time the dark brown supernatant is de- canted off and either filtered ...
... percent NaOH solution . A stir bar is added to the flask , the flask is capped , and the solution is stirred for 1 hour at room temperature . At the end of this time the dark brown supernatant is de- canted off and either filtered ...
Page 49
... per- cent conversions are J 20 percent but F 80 percent . The rate constants ( kp ) sHw and ( kp ) w are calculated , respectively , from Equations 2 and 3 : Equation 2 ( Kp ) sHw = ( 1 / t ) Pn ( C / Ct ) sнw ( in d - 1 ) Equation 3 ...
... per- cent conversions are J 20 percent but F 80 percent . The rate constants ( kp ) sHw and ( kp ) w are calculated , respectively , from Equations 2 and 3 : Equation 2 ( Kp ) sHw = ( 1 / t ) Pn ( C / Ct ) sнw ( in d - 1 ) Equation 3 ...
Page 53
... percent acetic acid , 50 percent acetonitrile and 48 percent water ( 2 mL / min flow rate ) . Tubes con- taining only SHW ( solution D ) should be analyzed by absorption spectroscopy at 370 nm after storage at 4 ° C in the dark . The ...
... percent acetic acid , 50 percent acetonitrile and 48 percent water ( 2 mL / min flow rate ) . Tubes con- taining only SHW ( solution D ) should be analyzed by absorption spectroscopy at 370 nm after storage at 4 ° C in the dark . The ...
Page 56
... percent . ( D ) If a significant loss of test chemi- cal occurred in the control solutions for pure water and SHW , indicate the causes and how they were eliminated or minimized . ( 2 ) Test data report- ( i ) Phase 2 Screening Test ...
... percent . ( D ) If a significant loss of test chemi- cal occurred in the control solutions for pure water and SHW , indicate the causes and how they were eliminated or minimized . ( 2 ) Test data report- ( i ) Phase 2 Screening Test ...
Page 59
... percent , and one concentration causing greater than zero and less than 50 per- cent mortality . An equal number of gammarids may be placed in two or more replicate test chambers . Solvents should be avoided , if possible . If sol ...
... percent , and one concentration causing greater than zero and less than 50 per- cent mortality . An equal number of gammarids may be placed in two or more replicate test chambers . Solvents should be avoided , if possible . If sol ...
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1,2,3-trichlorobenzene actinometer Administration amended applicable appropriate assay assessment body weight body weight changes cells centration chapter chromosome concentration conducted consent agreement control group Council culture daphnids dermal determine dilution water dose level effective date embryos environmental impact statement erythrocytes evaluation exposure Federal Acquisition Regulation FEDERAL REGISTER females final report submitted final rule guideline hexane highest dose histopathology inhalation isopropanol laboratory least lesions males mating measured ment metabolic method mutagens Mutation mysids necropsy neurotoxicity number of animals observed Office oncogenicity oral organs paragraph percent period photolysis positive control procedures provisions also apply rats Reporting requirements Required testing rodents Route of administration samples species specified stance standard statistical strain study plans subchronic submitted to EPA Subpart test chamber test chemical test rule test solution test sub test substance test system tion tissue toxic effects toxicity toxicity test treatment TSCA vehicle