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CHÍNH SÁCH KHÁCH HÀNG
Aquaquant Iron Range/graduation 0.2-0.4-0.6-0.8-1.0- 1.3-1.6-2.0-2.5 mg/l Fe (500 TESTS)
Potassium chloride solution (nominal 0.147 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)
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)
Sodium hydrogen carbonate/sodium carbonate certified secondary standard reference material for pH (2 X 25 G)
Potassium hydrogen phthalate Volumetric standard, secondary reference material for alkalimetry, traceable (80 G)
Potassium chloride solution (nominal 1.41 mS/cm) certified reference material for the measurement of (500 ML)
Potassium dihydrogen phosphate, di-Sodium hydrogen phosphate certified secondary standard reference (2 X 25 G)
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