EPA Method 508A DCB Stock Solution

2-Ethylhexyl 2,3,4,5-tetrabromobenzoate, 10mg

Perfluorobutylphosphonic Acid, 50mg

Salicylic acid-d4 (3,4,5,6-d4), neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 7864-17-0