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CHÍNH SÁCH KHÁCH HÀNG
COD Cell Test (Hg free) Range 100–1500 mg/l COD (25 TESTS)
Potassium chloride solution (nominal 111 mS/cm) certified reference material for the measurement of (500 ML)
Calcium hydroxide for the preparation of DIN 19266 pH standard buffer solutions, pH : 12.45 (25 G)
Barium sulfate for white standard DIN 5033 (250 G)
Potassium hydrogen phthalate certified secondary standard reference material for pH measurement; (25 G)
Potassium hydrogen tartrate certified secondary standard reference material for pH measurement; (25 G)
BOD Standard (analogue EN 1899) Standard Solution 210 ±20mg/l (1 SET)
Platinum Cobalt Color Reference Solution (HAZEN 500) According to DIN EN ISO 7887 and ASTM D1209 Pt 500 (250 ML)
Potassium hydrogen phthalate Volumetric standard, secondary reference material for alkalimetry, traceable (80 G)
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