EPA Method 8250/8250A Cal Check Cmpds Acids Back Catalog number: 82508 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2128.12-10-IOX10 Arochlor 1254, 10µg/mL, Solvent-isooctane, Unit 1mL, # of units-10, Cas.no. 11097-69-1 Price on request 2732.29-100-HX 24-Ethylcholest-5-en-3ß-ol, 100µg/mL, Solvent-n-hexane, Unit 1mL, # of units-1, Cas.no. 83-46-5 Price on request 11444.24-100-IO Tris(2,4-dimethylphenyl) phosphate-d27,100 µg/mL,isooctane,1mL, Price on request