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Organic Impurities Test

Select Item: $161.00 HM-137  Organic Impurities Test Set Specify Quantity:     HM-815 Organic Impurities A... ($153.50) HM-816 Organic Impurities S... ($8.00) HM-817 Organic Impurities T... ($2.50) HM-818 Sodium Hydroxide Pel... ($31.00)     Estimated Shipping Weight: 4.0 pounds   1.8 kilograms Test Methods AASHTO T21 ASTM C 40 Recent Items Organic Impurities Test Set Marshall Stability 4" Marshall Breaking Head Vacuum Pycnometer Type F Zeitfuchs Viscometer, Size 1 Draindown Basket 1/4" Mesh, 4 1/4" x 5 1/2"

HM-137 pictured

HM-137

This simple test is widely used for screening to determine possible presence of organic compounds in fine aggregates. Samples are shaken in a special graduated bottle with a 3% sodium hydroxide solution, then allowed to stand for 24 hours. If the resulting color of the liquid above the test sample is darker than a reference standard color, organic compounds may be present and further testing should be done before approval.

Gilson offers a complete HM-137 Organic Impurities Test Set or individual set components. The set includes six HM-817 graduated 8oz (237ml) colorless glass Impurities Test Bottles, a 1lb (454g) bottle of Sodium Hydroxide (NaOH) Pellets (HM-816), and an HM-815 Color Reference Chart. The sodium hydroxide pellets make enough 3% solution to perform over 150 tests. For strict compliance to ASTM and AASHTO standards, order HM-818 Reagent Grade sodium hydroxide pellets. The Color Reference Chart has five permanent reference colors mounted in a durable protective plastic case. The HM-817 Test Bottles are graduated in oz and ml and have watertight screw-on caps. Est. Ship Wt.: 10lb (5kg).