Ferric chloride/ferricyanide/arsenite TS (A+C), Validity: 12 months

Ferroin TS, Validity: 24 months

Ferrous ammonium sulfate (0.1 mol/l) VS, Validity: 12 months

Ferrous ammonium sulfate TS (1 g/L) , Validity: 12 months

Fuchsin TS, Validity: 12 months

Fuchsin, decolorized, TS, Validity: 12 months

Glyoxal bis(2-hydroxyanil) TS, Validity: 12 months

Green stock standard TS, Validity: 12 months

Holmium perchlorate TS, Validity: 12 months

Hydrochloric acid (~4 g/L) TS, Validity: 24 months