CHEMSOLUTE ready-to-use conductivity sol. 1413 µS/cm, 500ml (THG) Back Catalog number: 1575-500ML Availability: In the manufacturer's stock Price on request - + Recommended MA921B/1 Double junction orp platinum electrode MA921B/1 Price on request 18901201 PH9.18 500mL 9.18pH, one bottle 20,31 € 18901197 PH1.68 250mL 1.68pH, one bottle 19,09 €