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09/28/92 18:19 12202 280 0223 EPA 2004/006 <br /> Restrictions program requires such knowledge to comply with <br /> Part 268 standards . (See 55 FR 22520 - 22720, June 1, <br /> 1990 . ) Although Federal law does not require that all <br /> applicabla waste codes be placed on the hazardous waste <br /> manifoctc, Land Diapooal Rectrictions regulations will <br /> require that all waste codes be reported for the puoses of <br /> Meeting LOR provisions. (See 40 CFR 268 . 7 . ) In addition, <br /> .Jany stale agencies may have more stringent rules concerning <br /> proper manifesting of wastes in which listing and <br /> characteristic waste codes apply. <br /> 2C) oUESTION: In the preparation of quality control solutions, <br /> commercial chemical products (oithor in liquid or solid form) are <br /> dissolved in an organic solvent. Because the organic solvent is <br /> used for its solvent properties (1 , a. , to solubiliza, mobilize, <br /> or dissolve other chemical substances) , any excess or expired <br /> solutions should be disposed of with the spent solvent hazardous <br /> waste identification number. Is this corrmct? <br /> For example, if a solution of 0.01 g aldrin (Po04) and <br /> o . ol g dieldrin (P037) dissolved in 100 mL of methanol is to be <br /> disposed of, would the waste be classified as F003 and ?037 and <br /> P004? The methanol, in this case, is used to solubilize the <br /> pesticide constituents, and the waste, therefore, meets the spent <br /> solvent listing. <br /> Bim$: The above statements are NOT correct. The answer <br /> to these questions is just like the answer to quos.ion 2a. <br /> Assuming that there is only one active ingrodicnt (i. e. , <br /> analyta or solute) , the excess or expired solutions should <br /> be given the applicable commercial chemical product <br /> hazardous waste identification number under 5261. 33 no <br /> matter how many solvents are used (even if the solvents <br /> themselves are listed in 6261. 33) . Tr the above example, <br /> more than one active ingredient exists, therefore the <br /> solution does not meet any listing description at this time. <br /> Additionally, when a solvent lm uana to formulate a compound <br /> or product (such a CCP) , neither the solvent nor the <br /> formulated product meets the listing description for spent <br /> solvents. (Bee 50 IR 53315 , December 31, 1985. ) The <br /> disposed solution would have to be tested for hazardous <br /> waste characteristics, and would probably fail the <br /> ignitability (D001) characteristic. <br /> 3) QUESTION: Laboratories prepare many reagents with P and U- <br /> listed chemicals. During the analysis of polychlorinated <br /> dibanzo-p-dioxine and dibenzofurans, a reagent containing <br /> methylene chloride/methanol/banzone (75; 20: 5) is used. Upon <br /> disposal of excess reagent, would the mixture be identified as <br /> U080 (methylene chloride/CCP) , U154 (methanol/CCP) , U019 <br /> (benzene/CCP) , P002 (methylene chloride/solvent) , F003 <br /> (methanol/solvent) , or F005 (benzene/solvent) ? <br /> 3 <br /> R-95% 202 250 7225 05-26-92 01 : 25PM ?004 131 <br />