Buffer solution

REF : 1094760500
Marca : Supelco
Descrição :Buffer solution (boric acid/potassium chloride/sodium hydroxide), coloured: blue traceable to SRM from NIST and PTB pH 9.00 (20C) Certipur(R)
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Descrição detalhada : The blue-colored boric acid/potassium chloride/sodium hydroxide buffer solution is gravimetrically prepared using high-quality reagents, in accordance with DIN EN ISO/IEC 17025. Its pH value of 9.00 at 20C is measured following a 5-point calibration method, using a combined glass electrode. The measurement is made following DIN 19268 using reference buffer solutions compliant to DIN 19266, NIST, IUPAC, Ph. Eur, and USP. The pH value is strongly dependent on the temperature and therefore a constant temperature must be maintained during its use.
Armazenamento : 15-25C
Embalagem : 1X1EA