DOW 624 Volatile Internal/Surrogate Standard

1,5-Bis-(4-chlorophenyl)-biguanide HCl, neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 13590-98-2

5-Methyl-2-naphthol, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 66256-29-9

2,2,3,3,4,4,5,6-Octachlorobiphenyl