ASTM International - ASTM D6129-97
Standard Test Method for Silicon in Engine Coolant Concentrates by Atomic Absorption Spectroscopy
|Publication Date:||10 May 1997|
1.1 This test method covers the determination of silicon in the range from 200 to 500 ppm in engine coolant concentrates by atomic absorption. This method is as accurate and precise as photometric methods, while requiring considerably less operator time and avoiding problems with reagent instability.