1、 This document is restricted and may not be sent outside Navistar, Inc. or reproduced without permission from IPD Technical Standards Team. Suppliers are required to assume all patent liability. 2018 by Navistar, Inc. FEBRUARY 2018 Page 1 of 1 NAVISTAR, INC. Material, Parts, and Process Specificatio
2、ns (MPAPS) NUMBER: MPAPS BT-13 Former Designation: CEMS BT-13 TITLE: Stability Heating Test CURRENT REV No.: 1802 DATE: Feb. 2018 WRITTEN/EDITED BY: W. Cook APPROVED BY: R. Goluch SUPERSEDES: Rev. Aug. 2009 PRINTED COPIES OF THIS DOCUMENT MUST BE VERIFIED FOR CURRENT REVISION This specification may
3、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 use. 1.
4、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 2.2 400 milliliter beaker 2.3 Gravity oven, noncirculating 2.4 Saybolt viscometer and apparatus per ASTM D 88 3.0 P
5、ROCEDURE 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. REVISION HISTORY Revision Level Change Approved by Date Approved 1802 Converted to MPAPS R. Goluch 2/13/2018
