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PUFER OTOPINA PH9,22 500ML

pHBuffer NIST Solution pH9.225 +0.010 @20řC 500ML

pH Buffer Solution pH 9.225 + 0.01 @20řC

pH Buffer Solution pH 9.23 + 0.01 @25řC

pH Buffer Solution pH 9.40 + 0.01 @25řC

European Pharmacopoeia Reagent Ammonium