Sada pufrů pH 4,01; pH 7,01; pH 10,01 Back Catalog number: HI54710 Manufacturer: Hanna Instruments Czech Availability: In the manufacturer's stock Price on request - + Recommended 18901194 PH9.18 250mL 9.18pH, one bottle 320,00 Kč 18901166 Standard conductivity solution 500,00 Kč MA917B/1 Comb glass pH electrode, DJ, refill, BNC, 1m Price on request