EPA 1620 Standard 4 Back Catalog number: 52142 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 79246 EPA Method 8330 Analyte Price on request 2816.11-100-IO 7-Methyl-1-naphthol, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 6939-33-9 Price on request 79004 Acetone, 1000µg/ml in MeOH:Water (9:1), 1ml Price on request