Quality Control Standard, 1000µg/ml in AC, 1ml Back Catalog number: ISO/DIS9377-4-1 Availability: In the manufacturer's stock Price on request - + Recommended 677906 EPN, 100 µg/ml, Ethyl acetate, 1ml Price on request 675338 1-(4-Chlorophenyl)urea, 100mg Price on request S-4268-ASS-5HP IP 391-95 Performance Standard 4 Analytes, each Wt.% as listed in n-Heptane; units: 1x5mL, 5x5mL Cyclohexane 10.0 mg/mL o-Xylene 5.0mg/mL Dibenzothiophene 0.5mg/mL 9-Methylan Price on request