EPA Method 552.1 - Surrogate Standard Back Catalog number: 31057 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 0365.17-K-T 2,5-Diphenyl-1,6,6a-trithiapentalene, 1000µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 103-90-5 Price on request 30067 EPA Method 502/524 High Conc VOC Mixes Price on request 35111 Chloroform Price on request