EPA Method 524 & 624 - Internal Standard Back Catalog number: 19794 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 32021 Bromobenzene Price on request 673094 Antipyrine, 250mg Price on request 678073 Phosmet-oxon, 100 µg/ml, Isooctane, 1ml Price on request