1、 This document is restricted and may not be sent outside Navistar, Inc. or reproduced without permission from Corporate Technical Standards. Suppliers are required to assume all patent liability. 2014 by Navistar, Inc. June 2014 Page 1 of 1 NAVISTAR, INC. Material, Parts, and Process Specifications
2、(MPAPS) NUMBER: MPAPS BT-1 Former Designation: CEMS BT-1 TITLE: Foaming Test CURRENT REV No.: 1406 DATE: June 2014 WRITTEN/EDITED BY: Materials Engineering APPROVED BY: Materials Engineering SUPERSEDES: CEMS BT-1 - August 2009 PRINTED COPIES OF THIS DOCUMENT MUST BE VERIFIED FOR CURRENT REVISION Thi
3、s specification may involve hazardous materials, equipment, and procedures. This specification does not purport to address all of the safety issues associated with its use. The user is responsible to consult appropriate safety and health practices and to determine the applicability of regulatory lim
4、its prior to use. Change Notice: Update to MPAPS format. Editorial changes. 1.0 SCOPE This method covers a test procedure for the determination of the foaming characteristics of engine cooling system fluids. 2.0 APPARATUS Graduated cylinder, air-inlet tube, gas diffuser stone and other apparatus per
5、 ASTM D 892. 3.0 PROCEDURE Perform the method of determination of foaming characteristics per ASTM D 892 with the following modifications: 3.1 Antifreeze, Single Phase, Ethylene Glycol Base 3.1.1 Use the following test fluid and mix in accordance with ASTM D 1176, Section 6.3., 50 percent solution o
6、f antifreeze in distilled water. 3.1.2 Operate with the solution at a temperature of 200 3F (93 2C) with an air volume of 4 L/min. 3.2 Other Engine Cooling System Fluids 3.2.1 Use mixtures and test conditions as required in the appropriate specification. 4.0 REPORT 4.1 Volume of foam as the differen
7、ce in height of foam at the end of the 5 minute blowing period, before the air is turned off, from height of liquid at start of test in milliliters. 4.2 The time for the foam to collapse after the air is turned off, “break time”, in seconds. “Break time” is defined as the time for foam to collapse t
8、o the first appearance of an “eye” on the surface of the solution. 5.0 TECHNICAL INFORMATION For further information related to the technical content of this specification, contact: Suppliers may purchase controlled copies of this specification by contacting: Materials Engineering and Technology Dept. 10400 W. North Avenue Melrose Park, IL 60160 E-mail: MaterialsEngineeringN IHS Global Inc. 15 Inverness Way East Englewood CO 80112-5776 Phone: 1-800-854-7179 E-mail: AutomotiveIHS.com Website: http:/
