Phosphoric acid (~20g/L) TS, Validity: 12 months

Phosphoric acid (~2.8 g/L) TS, Validity: 12 months

Phthalate buffer, pH 3.4, TS, Validity: 12 months

Phthalate buffer, pH 3.5, TS, Validity: 12 months

Phthalate buffer, pH 4.0, TS, Validity: 12 months

Platinic chloride (60 g/L) TS, Validity: 12 months

Potassio-cupric tartrate TS (A+B), Validity: 12 months

Potassio-mercuric iodide TS, Validity: 12 months

Potassium acetate TS, Validity: 12 months

Potassium bromate (0.00833 mol/l) VS, Validity: 12 months