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CHÍNH SÁCH KHÁCH HÀNG
Crack set 20 (1 SET)
Potassium tetraoxalate dihydrate certified secondary standard reference material for pH measurement; (25 G)
BOD Standard (analogue EN 1899) Standard Solution 210 ±20mg/l (1 SET)
Potassium chloride solution (nominal 12.8 mS/cm) certified reference material for the measurement of (30 X 30 ML)
Potassium chloride solution (nominal 1.41 mS/cm) certified reference material for the measurement of (500 ML)
Potassium hydrogen phthalate Volumetric standard, secondary reference material for alkalimetry, traceable (80 G)
Potassium dihydrogen phosphate, di-Sodium hydrogen phosphate certified secondary standard reference (2 X 25 G)
di-Sodium tetraborate decahydrate certified secondary standard reference material for pH measurement; (25 G)
2-Propanol standard for the analysis of tobacco (2.5 L)
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