pH 9.0 Standard @ 25°C Back Catalog number: 59337 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 59134 SLCK Spike (Metals Mix #5) Price on request 50019 ICP Mix #2 Price on request 11722.12-100-IO 2,3,3',4,5'-Pentachlorobiphenyl ,100 µg/mL,isooctane,1mL, Price on request