CLP Semi-Volatile Internal Standard Back Catalog number: 10019R Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 70016 Aroclor 1221 Price on request 71205 Fenitrothion, 1000µg/ml in MeOH, 1ml Price on request 59391 Chlorite (ClO2-) Price on request