铵缓冲液 for complexometry (ammonium chloride/ammonia) pH = 10-11 TitriPUR®
缓冲溶液 for Karl Fischer Titration apura®
缓冲溶液 for Karl Fischer Titration apura®
缓冲剂 (Boric acid, Sodium hydroxide, Potassium chloride) tracable to SRM from NIST and PTB pH 11.00 (25°C) CertiPUR®
缓冲剂 (Disodium tetraborate), tracable to SRM from NIST and PTB pH 9.18 (25°C) CertiPUR®
缓冲剂 (Citric acid, Sodium hydroxide, Hydrogen chloride), tracable to SRM from NIST and PTB pH 2.00 (25°C) CertiPUR®