EPA Method 525 - Perchlorinates Back Catalog number: 31029 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended DF-238-S 2,3,8-Trichlorodibenzofuran, 1.2ml x 50ug/ml, nonane Price on request 71639 (2E)-Octen-1-ol Price on request C13118000 Empenthrin, 100mg Price on request