525.2 Perfomance Check Solution Back Catalog number: 97128 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended L20032100CY PCB-Mix 21, 10µg/mL in Cyclohexane, 10ml Price on request 91853 EPA Method 8240A - Purgeable Surrogate Standard Price on request 33191 cis-1,2-Dichloroethene Price on request