ASTM C 87 - 05 Standard Test Method for Effect of Organic Impurities in Fine Aggregate on Strength of Mortar

American Society for Testing and Materials (ASTM). Current edition approved July 1, 2005. Published July 2005. Originally approved in 1931. Last previous edition approved in 2004 as C 87 – 04. 4 p. This test method covers the determination of the effect on mortar strength of the organic impurities in fine aggregate, whose presence is indicated using Test Method C
40. Comparison is made between compressive strengths of mortar made with washed and unwashed fine aggregate.