Category:Pharmacopoeia > EU Pharmacopoeia > Buffer Solutions Ph Eur Ref Num: 4012200 Full Name: Tris(hydroxymethyl)aminomethane sodium chloride buffer solution R1 pH 7.4 Shelf Life on Ship Date: 12 Months - Store under normal laboratory conditions, at temperatures between 15°C to 25°C Vol.: 1000 ml