 ASTM C-40
AASHTO T-21
This Test Set is used to indicate the presence of
detrimental organic compounds in sand used in mortar and cement.
A positive result is indicated by a color which is compared to
the permanent color standards chart provided. A positive result
will require further testing before the sands can be used. The
sand sample is placed in the graduated glass impurities
bottle with sodium hydroxide solution (3 parts beads to 97 parts
water by weight).
The Organic Impurities Test Set includes:
• Six 16 oz Graduated Glass Impurities Test Bottles
•Color Standard
Chart
• Sodium Hydroxide beads, 1 lb
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C-404
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Organic Impurities Test Set
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