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CHÍNH SÁCH KHÁCH HÀNG
Buffer Solution pH 6.00 30 X 30 ML (1 Pc)
Potassium chloride solution (nominal 111 mS/cm) certified reference material for the measurement of (500 ML)
Potassium chloride solution (nominal 12.8 mS/cm) certified reference material for the measurement of (500 ML)
Certificate of analysis available on internet. Conductivity water (nominal 0 mS/cm) Test solution for Measurement (5 X 100 ML)
Buffer solution (di-sodium tetraborate), traceable to SRM from NIST and PTB pH 9.22 (20°C) CertiPUR (1 L)
Potassium chloride solution (nominal 0.015 mS/cm) certified reference material for the measurement of (5 X 100 ML)
Potassium hydrogen phthalate certified secondary standard reference material for pH measurement; (25 G)
di-Sodium tetraborate decahydrate certified secondary standard reference material for pH measurement; (25 G)
POTASSIUM HYDROGEN PHTHALATE VOLUMETRIC (1 Pc)
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