Organic Impurities Test

Set AT46-100 ORGANIC IMPURITIES TEST ASTM C 40, AASHTO T21 Aggregates contain organic impurities may not be satisfactory for inclusions in concrete. Organic impurities ( usually tannic acid and its derivatives) may interfere with the chemical reaction of hydration. Impurities are more likely to be found in sand than in coarse aggregate. This set consist of : AT46-110 Impurities Bottle 4 pcs Transparent glass 300 ml cap. Graduated complete with stopper AT46-120 Stock Solution 1 ltr Sodium Hydroxide Solution NaOH 3% AT46-130 Standard Colour Chart 1 pc 5 standard colour. Weight approx 4 kg Optional accessories : AT10-100 Sample Splitter Alternative for AT46-130 : AT46-132 Standard Colour Chart 1 pc Five organic colour mounted in a plastic holder.