Cresol red/ethanol TS, Validity: 12 months

Crystal violet/acetic acid TS, Validity: 12 months

Diammonium hydrogen phosphate (100 g/L) TS, Validity: 12 months

Diethylphenylenediamine sulfate TS, Validity: 12 months

Disodium hydrogen phosphate (100 g/L) TS, Validity: 24 months

Disodium hydrogen phosphate (28.4 g/L) TS, Validity: 24 months

Disodium hydrogen phosphate (40 g/L) TS, Validity: 24 months

Domiphen bromide (10 g/L) TS, Validity: 12 months

Ethylene oxide stock solution R, Validity: 12 months

Ferric ammonium sulfate TS2, Validity: 12 months