EPA 1620 Standard 4 Back Catalog number: 52142 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended S-4345-10-DC PAH/PCB Internal Standard Mix 3 0711,10 Naphthalene 0002,12 Acenaphthylene 0732,12 Acenaphthene 0217,13 Fluorene 0816,14 Phenanthrene 1049,14 Anthracene 0260,16 Fluoranthene 0235,16 Pyrene 0201,18 Benz[a]anthracene 0212,18 Chrysene 0274,24 Price on request S-4356-10-5ME ISO 8165-2 Internal Control Stock Solution 2 S-4356 2,5-Dibromophenol [28165-52-8] 2470,6, 10 µg/mL in methanol, 5ml Price on request 79050 Heptachlor epoxide Price on request