Linearity Check Mix ASTM D-5134

2,8-Dibromodibenzothiophene, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 31574-87-5

2,2',3,3',4,5,5',6,6'-Nonachlorobiphenyl ,100 µg/mL,isooctane,1mL,

Chlorpyriphos-ethyl, 100µg/ml in Acetonitrile, 5ml