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. 2009 by Navistar, Inc. AUGUST 2009 Page 1 of 1 NAVISTAR, INC. CEMS (CORPORATE ENGINEERING MATERIAL SPECIF
2、ICATION) NUMBER: CEMS BT-28 TITLE: Compatibility And Dispersibility Test CURRENT ISSUE DATE: August 2009 WRITTEN/REVIEWED BY: Materials Engineering APPROVED BY: Materials Engineering SUPERSEDES ISSUE OF: October 2001 PRINTED COPIES OF THIS DOCUMENT MUST BE VERIFIED FOR CURRENT REVISION This specific
3、ation 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 limits prior
4、to use. Change Notice: Replaced “International Truck and Engine Corporation” with “Navistar, Inc.” per corporate directive. 1.0 SCOPE This method covers a test procedure for determining the compatibility of stopleak compounds with engine cooling systems and their dispersibility in water and antifree
5、ze. 2.0 APPARATUS 2.1 2000 milliliter Pyrex beakers, or equivalent 2.2 Hot plate or laboratory burner 2.3 U.S. Standard sieves, 3 inch diameter, size No. 16 and No. 30 2.4 Thermometer, 0 - 220 Fahrenheit 2.5 Glass stirring rod 3.0 MATERIAL 3.1 Distilled water 3.2 Antifreeze mixture consisting of equ
6、al parts distilled water and CEMS B-1, Antifreeze, Single Phases, Ethylene Glycol Base. 4.0 PROCEDURE 4.1 Place one pellet or one container of combination liquid and solid compound into each of two 2000 milliliter beakers, one containing 1500 milliliters of distilled water and one containing 1500 mi
7、lliliters of antifreeze mixture, maintained at 180F + 5. 4.2 Maintain a temperature of 180F + 5 without external agitation for a period of 1/2 hour. 4.3 At the end of this time period, stir the liquid and pour the contents of the beaker through U.S. Standard No. 16 and No. 30 sieves stacked with No.
8、 16 on top. 4.4 Rinse any remaining solid matter from the beaker with one liter of distilled water passing the washing carefully through the stacked screens. 5.0 REPORT The solid matter, percent by weight, retained on the No. 16 sieve and the No. 30 sieve. Copyright Navistar International Corporation Provided by IHS under license with INTERNNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
