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CHÍNH SÁCH KHÁCH HÀNG
Spectroquant Zinc Cell Test Range 0.20–5.00 mg/l Zn, (25 TESTS)
2-Propanol standard for the analysis of tobacco (2.5 L)
BOD Standard (analogue EN 1899) Standard Solution 210 ±20mg/l (1 SET)
Potassium chloride solution (nominal 0.147 mS/cm) certified reference material for the measurement of (30 X 30 ML)
Buffer solution (di-sodium tetraborate), traceable to SRM from NIST and PTB pH 9.22 (20°C) CertiPUR (1 L)
di-Sodium tetraborate decahydrate 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 (500 ML)
Potassium chloride solution (nominal 0.015 mS/cm) certified reference material for the measurement of (5 X 100 ML)
Sodium hydrogen carbonate/sodium carbonate certified secondary standard reference material for pH (2 X 25 G)
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