1996-02-01

A New Test Method for Compatibility of Supplemental Coolant Additives (SCA) and Engine Coolant Concentrates 960646

Compatibility of coolant concentrate and SCA/water mixtures can be measured by their tendency to form insolubles during short term exposure to simulated operating conditions. A relatively simple, basic compatibility method was chosen to study the amount of silicate gel formed by coolant concentrate/SCA/water mixtures.. The method was modified to improve precision by first studying, then controlling key experimental factors. Further refinements were made to the method and a precision round robin was performed as part of the activity of the ASTM Committee D.15 on Engine Coolants.

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