EPA Method 507 Analyte Mix #8

N-Nitroso-N-methylurea, Comet assay grade (see 8926.2), , Solvent-, Unit , # of units-, Cas.no. 684-93-5

Aroclors 1242 & 1260

ISO 17495 Internal Standard Stock Solution 2 Internal standards, each 10µg/mL in acetone; unit: 1x5mL 2061.6 2,4-Dibromophenol [615-58-7] 2060.6 2,4,6-Tribromophenol [118-79-6] The following compounds are suggested as alternative I