Organic Impurities Test Set

Our Organic Impurities Test Set is designed to detect harmful organic materials in fine aggregates quickly and accurately. This test is widely used to evaluate the quality of fine aggregates in construction and other industries.

How It Works: The test is simple: just mix your aggregate sample with a 3% sodium hydroxide (NaOH) solution in a clear, graduated glass bottle. Let the mixture stand for 24 hours. If the liquid above the sample turns darker than the color shown on the included reference disc, it may indicate the presence of organic compounds, suggesting further testing is required before material approval.

• Six Graduated Impurities Test Bottles with watertight screw-on caps, calibrated in both ounces and milliliters for accurate measurements.
• 1 lb (454 g) of Sodium Hydroxide (NaOH) Pellets to prepare a 3% solution, sufficient for over 150 tests.
• Color Reference Disc with five standard reference colors for easy color comparison.

For strict adherence to ASTM and AASHTO Standards, Reagent Grade Sodium Hydroxide Pellets can also be ordered separately.

Ensure the quality of your aggregates with this reliable test kit, designed to make impurity detection easy and effective.

AASHTO T 21, ASTM C40/40M