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Significance and Use
4.1 4.1 This test method provides information on the stability of the engine coolant concentrate when stored at elevated temperatures for two weeks. These test conditions might simulate the conditions that a product would be subjected to in transit and storage in warehouses before delivery to the customer.
4.2 This test method provides information on the stability of an engine coolant diluted with synthetic hard water at elevated temperatures. This test method provides a laboratory method to test the sensitivity of the engine coolant to hard water.
1.1 This test method covers a simple glassware-type procedure for evaluating the effects of temperature and hard water on the stability of engine coolants at elevated temperatures under controlled laboratory conditions.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
D1176 Practice for Sampling and Preparing Aqueous Solutions of Engine Coolants or Antirusts for Testing Purposes
D1193 Specification for Reagent Water
E288 Specification for Laboratory Glass Volumetric Flasks
British StandardsBS5117-1.5:1992 Coolant Hard Water Stability Test BSIBSISO5725-2 Accuracy (Trueness and Precision) of Measurement Methods and Results-Part 2: Basic Method for the Determination of Repeatability and Reproducibility of a Standard Measurement Method
ICS Number Code 71.100.45 (Refrigerants and antifreezes)
UNSPSC Code 25174004(Engine coolant)
ASTM D7437-08(2013), Standard Test Method for Temperature and Hard Water Stability of Engine Coolants, ASTM International, West Conshohocken, PA, 2013, www.astm.orgBack to Top