Glycerin gets the green light for use in US engine ... - ICIS
Apr 16, 2012·A set of specification standards for glycerin grades to be used in engine coolants has been released by ASTM International (formerly known as the American Society for Testing and Materials), giving the oleochemically derived material the green flag to move into the glycol market segment.. Refined glycerin of 99.5% purity will be one of the blendstocks for these coolant systems.