EPA Method 531.1 Individual Analytes Back Catalog number: 31241 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 3658.6-1G 1,3-Dibromobenzene Price on request S-4529-1ML Reference Material ASTM 5010A, 1ml Price on request 678219 1-(4-Isopropylphenyl)urea, 100mg Price on request