EPA Method 548.1 Internal Standard Back Catalog number: 30078 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 678449 Fenclorim, 100mg Price on request 59560 Conductance @ 20°C [5000 µmho/cm] Price on request C10045300 Acrylamide, certified, 0.25g Price on request