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 SPECI
2、FICATION) NUMBER: CEMS GT-7K TITLE: Engine Oil Immersion Test For Paint CURRENT ISSUE DATE: August 2009 WRITTEN/REVIEWED BY: Materials Engineering APPROVED BY: Materials Engineering SUPERSEDES ISSUE OF: August 2001 PRINTED COPIES OF THIS DOCUMENT MUST BE VERIFIED FOR CURRENT REVISION This specificat
3、ion 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 to
4、 use. Change Notice: Replaced “International Truck and Engine Corporation” with “Navistar, Inc.” per corporate directive. 1.0 SCOPE This is a method for evaluating the ability of a dry film of paint to withstand degradation due to immersion in an engine oil. 2.0 APPARATUS 2.1 Bath capable of maintai
5、ning a temperature of 88 to 93C (190 to 200F) 2.2 Recirculating oven capable of maintaining a temperature of 49 + 3C (120 + 5F) 3.0 MATERIAL 3.1 Bonderite CD-10 or Bonderite 958 zinc phosphated steel panels, 100 x 150 mm (4 x 6 inches), available from Advanced Coatings Technologies, 273 Industrial D
6、rive, Hillsdale, Michigan 49242. 3.2 SAE 10W30 Series 3 engine oil or equivalent 3.3 Absorbent paper, Kleenex, Kimwipes or equivalent 4.0 PROCEDURE 4.1 Prepare two panels according to the method specified for the grade being tested in Test Method GT-13, Panel Preparation. 4.2 Age the prepared panels
7、 for 72 hours at 49C (120F). 4.3 Fill the bath with engine oil and bring to a temperature of 88 to 93C (190 to 200F). 4.4 Immerse the panels in this bath to a depth equivalent to two-thirds of the panel length for the specified time period. 4.5 At the conclusion of the specified immersion period, re
8、move the panels from the bath and dry with an absorbent paper. 4.6 Immediately examine the painted surface of each of the panels; any evidence of blistering, softening or loss of adhesion will constitute a failure. 4.7 After examining the panels, age them for 2 hours in still air at 21 to 27C (70 to
9、 80F). 4.8 At the conclusion of the two hour period, examine the painted surface of each panel; any appreciable change in color will constitute a failure. 5.0 REPORT Report whether the paint passes or fails this test. Copyright Navistar International Corporation Provided by IHS under license with INTERNNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
