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 Navistar, Inc. AUGUST 2009 Page 1 of 1 NAVISTAR, INC. CEMS (CORPORATE ENGINEERING MATERIAL SPECIFIC
2、ATION) NUMBER: CEMS BT-13 TITLE: Stability Heating 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 specification may involve
3、 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 use. Change No
4、tice: Replaced “International Truck and Engine Corporation” with “Navistar, Inc.” per corporate directive. 1.0 SCOPE This method covers a test procedure for determining the high temperature stability of extreme pressure gear lubricants. 2.0 APPARATUS 2.1 Balance with a sensitivity of 0.1 gram 2.2 40
5、0 milliliter beaker 2.3 Gravity oven, noncirculating 2.4 Saybolt viscometer and apparatus per ASTM D 88 3.0 PROCEDURE 3.1 Heat 200 grams of the lubricant in a 400 milliliter beaker for 100 hours at 300F (149C) in a gravity oven. 3.2 Determine Saybolt viscosity at 210F (99C). 3.3 Determine pentane insolubles per ASTM D 893, Procedure A 4.0 REPORT 4.1 The Saybolt viscosity increase or decrease at 210F (99C) in percent. 4.2 The evaporation loss in percent by weight. 4.3 Pentane insolubles.
