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CHÍNH SÁCH KHÁCH HÀNG
Spectroquant Aluminium Test Range 0.020 – 1.20 mg/l Al (350 TESTS)
Buffer solution (di-sodium tetraborate), traceable to SRM from NIST and PTB pH 9.22 (20°C) CertiPUR (1 L)
Calcium hydroxide for the preparation of DIN 19266 pH standard buffer solutions, pH : 12.45 (25 G)
di-Sodium tetraborate decahydrate certified secondary standard reference material for pH measurement; (25 G)
Potassium hydrogen tartrate certified secondary standard reference material for pH measurement; (25 G)
Potassium chloride solution (nominal 0.147 mS/cm) certified reference material for the measurement of (30 X 30 ML)
BOD Standard (analogue EN 1899) Standard Solution 210 ±20mg/l (1 SET)
2-Propanol standard for the analysis of tobacco (2.5 L)
Potassium hydrogen phthalate certified secondary standard reference material for pH measurement; (25 G)
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