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CHÍNH SÁCH KHÁCH HÀNG
Nitrite standard solution 40.0 mg/l NO2-N ± 1.3 mg/l (100 ml)
Potassium chloride solution (nominal 12.8 mS/cm) certified reference material for the measurement of (500 ML)
2-Propanol standard for the analysis of tobacco (2.5 L)
Barium sulfate for white standard DIN 5033 (250 G)
di-Sodium tetraborate decahydrate certified secondary standard reference material for pH measurement; (25 G)
Calcium hydroxide for the preparation of DIN 19266 pH standard buffer solutions, pH : 12.45 (25 G)
Sodium hydrogen carbonate/sodium carbonate certified secondary standard reference material for pH (2 X 25 G)
Certificate of analysis available on internet. Conductivity water (nominal 0 mS/cm) Test solution for Measurement (5 X 100 ML)
BOD Standard (analogue EN 1899) Standard Solution 210 ±20mg/l (1 SET)
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