ASTM D1881 Test Method for Foaming Tendencies of Engine Coolants in Glassware
1. Scope
1.1 This test method covers a simple glassware test for evaluating the tendency of engine coolants to foam under laboratory-controlled-conditions of aeration and temperature.
1.2 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. For specific warning statements, see and .
1.3 The values stated in SI units are to be regarded as standard. The values given in parentheses are approximate equivalents provided for information purposes only.
2. Referenced Documents
2.1 ASTM Standards:
D1176 Practice for Sampling and Preparing Aqueous Solutions of Engine Coolants orAntirusts for Testing Purposes
D1193 Specification for Reagent Water
D3585 Specification for ASTM Reference Fluid for Coolant Tests
E1 Specification for ASTM Liquid-in-Glass Thermometers
E128 Test Method for Maximum Pore Diameter and Permeability of Rigid Porous Filters for Laboratory Use
3. Terminology
3.1 Definitions of Terms Specific to This Standard:
3.1.1 break time, n - the time required for the foam to collapse (after the air supply has been shut off) to the first appearance of an "eye" on the surface of the test solution.
3.1.2 eye, n - the appearance of foam free area on the surface of the test coolant surrounded by a ring of foam clinging to the cylinder walls.
