Laboratory Information Bulletin, Volume 19, Issue 1
Department of Health and Human Services, Public Health Service, Food and Drug Administration, Office of Regulatory Affairs, Office of Regional Operations, Division of Field Science, 2003 - Drugs
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100 ug/mL lead accuracy allow amount of chromogen appear applied and dried Apply 100 uL appropriate ceramic food ware Ceramic mugs Ceramic plates chromogen reagent citric acid solution clean color development compared Compliance Program Guides covers current Compliance Program depth Diluent Director Drug Administration fill volume filter paper corresponds Fishers Lane Food and Drug food contact surface food ware including hour leach test hr leach improve the reproducibility improve the sensitivity inner portion intense Laboratory Information Bulletin Leach solution conc lead concentration Maryland method blank methods and techniques mL Sample ID Modified QCT Leach modified to improve mugs and pitchers Negative observed of9 Toxic elements outer edge Policy Positive publications published QCT Leach solution QCT test red/rose color reference standards regulatory Sample ID Sub sample sub solution is applied square cm std2 stdl test results test surface test vessels Toxic elements Product ug Pb ug/mL lead solution