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CHÍNH SÁCH KHÁCH HÀNG
Aquamerck Total hardness Range 3.56-356 mg/l CaCO3 (300 TESTS)
Potassium chloride solution (nominal 0.015 mS/cm) certified reference material for the measurement of (5 X 100 ML)
Potassium hydrogen phthalate Volumetric standard, secondary reference material for alkalimetry, traceable (80 G)
Potassium chloride solution (nominal 12.8 mS/cm) certified reference material for the measurement of (500 ML)
Potassium tetraoxalate dihydrate certified secondary standard reference material for pH measurement; (25 G)
di-Sodium tetraborate decahydrate certified secondary standard reference material for pH measurement; (25 G)
Barium sulfate for white standard DIN 5033 (250 G)
POTASSIUM HYDROGEN PHTHALATE VOLUMETRIC (1 Pc)
Potassium chloride solution (nominal 111 mS/cm) certified reference material for the measurement of (500 ML)
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