pH 8.0 Standard @ 25°C Back Catalog number: 59754 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 19137 EPA Method 507 - Performance Check Solution Price on request 3531.8-K-CY Cyclooctane, 1000µg/mL, Solvent-cyclohexane, Unit 1mL, # of units-1, Cas.no. 292-64-8 Price on request 96634 “Over the Counter” Analgesics Price on request