EPA Method 8250/8250A Cal Check Cmpds Acids

Arochlor 1254, 10µg/mL, Solvent-isooctane, Unit 1mL, # of units-10, Cas.no. 11097-69-1

24-Ethylcholest-5-en-3ß-ol, 100µg/mL, Solvent-n-hexane, Unit 1mL, # of units-1, Cas.no. 83-46-5

Tris(2,4-dimethylphenyl) phosphate-d27,100 µg/mL,isooctane,1mL,