Buffer solution
(boric acid/potassium chloride/sodium hydroxide), traceable to SRM from NIST and PTB pH 10.00 (20°C) Certipur®

pH-indicator strips pH 7.5 – 14
non-bleeding pH 7.5 – 8.0 – 8.5 – 9.0 – 9.5 – 10.0 – 10.5 – 11.0 – 11.5 – 12.0 – 12.5 – 13.0 – 13.5 – 14.0 MQuant®

Indicator buffer tablets
for the determination of water hardness with Titriplex® solutions