EPA Method 548.1 Internal Standard Back Catalog number: 30078 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 73675 2,3,4,5,6-Pentabromotoluene Price on request 679266 Ethylparaben, 100mg Price on request 678347 Fenson, 100 µg/ml, Ethyl acetate, 5ml Price on request