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Significance and Use
4.1 This test method is used in making a preliminary determination of the acceptability of fine aggregates with respect to the requirements of Specification that relate to organic impurities.
4.2 The principal value of this test method is to furnish a warning that injurious amounts of organic impurities may be present. When a sample subjected to this test produces a color darker than the standard color it is advisable to perform the test for the effect of organic impurities on the strength of mortar in accordance with Test Method .
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
C33/C33M Specification for Concrete Aggregates
C87/C87M Test Method for Effect of Organic Impurities in Fine Aggregate on Strength of Mortar
C125 Terminology Relating to Concrete and Concrete Aggregates
C702/C702M Practice for Reducing Samples of Aggregate to Testing Size
D75/D75M Practice for Sampling Aggregates
D1544 Test Method for Color of Transparent Liquids (Gardner Color Scale)
ICS Number Code 91.100.30 (Concrete and concrete products)
|Link to Active (This link will always route to the current Active version of the standard.)|
ASTM C40 / C40M-20, Standard Test Method for Organic Impurities in Fine Aggregates for Concrete, ASTM International, West Conshohocken, PA, 2020, www.astm.orgBack to Top