ASTM C 1603 - 05a Standard Test Method for Measurement of Solids in Water

American Society for Testing and Materials (ASTM). Current edition approved July 1, 2005. Published August 2005. Originally approved in 2004. Last previous edition approved in 2005 as C 1603 – 05. 4 p. This test method covers the measurement of the solids content in water for use as mixing water in ready-mixed concrete and the measurement of its density. Solids content is expressed in terms of parts per million (ppm) or in terms of percent by mass of the water sample.