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CHÍNH SÁCH KHÁCH HÀNG
Barium sulfate for white standard DIN 5033 (250 G)
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)
Platinum Cobalt Color Reference Solution (HAZEN 500) According to DIN EN ISO 7887 and ASTM D1209 Pt 500 (250 ML)
Sodium hydrogen carbonate/sodium carbonate certified secondary standard reference material for pH (2 X 25 G)
Potassium hydrogen phthalate certified secondary standard reference material for pH measurement; (25 G)
Potassium tetraoxalate dihydrate certified secondary standard reference material for pH measurement; (25 G)
Potassium chloride solution (nominal 12.8 mS/cm) certified reference material for the measurement of (30 X 30 ML)
Benzoic acid volumetric standard, secondary reference material for alkalimetry, traceable to NIST Standard (60 G)
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