EPA Method 552 Internal Standard Back Catalog number: 30055 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 680269 Dimethipin, 100mg Price on request LBC-003-1000ME5 Terpenes - Mix 4 each 1000 μg/ml in Methanol, 5ml Price on request 22113 Purgeable Internal Standard Price on request