EPA Method 525 - Internal Standard Back Catalog number: 30031 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 30841 Methiocarb,100µg/ml in MeOH, 1ml Price on request 70402 Methapyrilene HCl Price on request 73791 4-Methyl-1,3-dioxolane Price on request