Buffer solution

REF : 1990910500
Marca : Supelco
Descrição :Buffer solution traceable to NIST SRM, traceable to PTB, pH 9.2 (25 C in H2O), Certipur(R)
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Descrição detalhada : The di-sodium tetraborate buffer solution is gravimetrically prepared at a registered calibration laboratory with high-quality reagents and water. Its pH value of 9.20 at 25C is measured using a combined glass electrode following a 5-point calibration method. The measurement is made following DIN 19268 using reference buffer solutions compliant to DIN 19266, NIST, IUPAC, Ph. Eur, and USP. The buffer pH is temperature dependent and therefore a constant temperature must be maintained during its use.
Sinónimos : di-sodium tetraborate
Armazenamento : 15-25C
Embalagem : 1X1EA