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The Organic Impurities Test is a widely used, simple procedure to determine presence of organic compounds in fine aggregates. Gilson offers a complete HM-137 Organic Impurities Test Set with or without sodium hydroxide reagent, or individual set components for your convenience.
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 chart standard color, organic compounds may be present and further testing should be done. The HM-817 Test Bottles are graduated in oz and ml and have watertight screw-on caps.
HM-137 Organic Impurities Test Set includes six graduated 240ml (8oz) colorless glass Impurities Test Bottles, a 1lb (454g) bottle of standard grade Sodium Hydroxide (NaOH) Pellets and a Color Reference Chart. The Color Reference Chart has been upgraded to meet the latest ASTM revisions, and has five permanent reference colors mounted in a durable protective plastic case. 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.
HM-137F Organic Impurities Test Set w/o Sodium Hydroxide Reagent includes all items listed with HM-137 except the sodium hydroxide reagent, and is a good option for those in geographic areas with shipping restrictions on certain types of products.
HM-137: 6.0lbs (2.72kg)
HM-137F: 4.0lbs (1.81kg)
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