Description
ASTM C40 • AASHTO T21
- Used to determine the presence of injurious organic impurities in fine aggregates which are to be used in hydraulic cement mortar or concrete.
- Organic Color Scale (AG-240/CS)
- Organic Impurities Bottle (AG-240/TB)
ASTM C40 • AASHTO T21
ASTM C40 • AASHTO T21
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