Phenol (50 g/L) TS, Validity: 12 months

Phenol red/ethanol TS, Validity: 12 months

Phenylhydrazine hydrochloride (10 g/L) TS, Validity: 12 months

Phosphate buffer, pH 6.4, TS, Validity: 12 months

Phosphate buffer, pH 7.6, TS, Validity: 12 months

Potassio-mercuric iodide TS, Validity: 12 months

Potassium acetate TS, Validity: 12 months

Potassium bromate (50 g/L) TS, Validity: 12 months

Potassium bromide (0.119 g/L) TS, Validity: 12 months

Potassium bromide (100 g/L) TS, Validity: 12 months