EPA Method 8260B Surrogate Standard Back Catalog number: 23012 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 94203 Method 624 Volatile Standard Price on request A172062-5MG Acetylcholine-d9 Chloride, 5mg Price on request 677285 Folpet, 100 µg/ml, Cyclohexane, 1ml Price on request