MINERAL FUELS, MINERAL OILS AND PRODUCTS OF THEIR DISTILLATION; BITUMINOUS SUBSTANCES; MINERAL WAXES (HS code(s): 27); Petroleum and related technologies (ICS code(s): 75)

DUS 2399:2024, Standard Test Methods for Water in Engine Coolant Concentrate by the Karl Fischer Reagent Method, Second Edition; (14 page(s), in English)

This Draft Uganda Standard covers the determination of the water present in new or unused glycol-based coolant concentrates using a volumetric (Test Method A) or an automatic coulometric titrator procedure (Test Method B). Many carbonyl compounds react slowly with the Fischer reagent, causing a fading end point and leading to high results. A modified Fischer reagent procedure is included that minimizes these undesirable and interfering reactions.