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CHÍNH SÁCH KHÁCH HÀNG
Merckoquant Carbonate hardness Range/Graduation 71- 142-214-285-428 mg/l CaCO3 (100 STRIPS)
POTASSIUM HYDROGEN PHTHALATE VOLUMETRIC (1 Pc)
Colour Reference Solutions BY for testing the colour intensity acc. to Ph. Eur. BY1-BY7 CertiPUR (1 SET)
Colour Reference Solutions Y for testing the colour intensity acc. to Ph. Eur. Y1-Y7 CertiPUR (1 SET)
Potassium chloride solution (nominal 1.41 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 (30 X 30 ML)
Potassium hydrogen tartrate certified secondary standard reference material for pH measurement; (25 G)
Potassium chloride solution (nominal 1.41 mS/cm) certified reference material for the measurement of (30 X 30 ML)
Colour Reference Solutions B for testing the colour intensity acc. to Ph. Eur. B1-B9 CertiPUR (1 SET)
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