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 2 NAVISTAR, INC. CEMS (CORPORATE ENGINEERING MATERIAL SPECI
2、FICATION) NUMBER: CEMS BT-26 TITLE: Solid Matter 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 h
3、azardous 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 Noti
4、ce: Replaced “International Truck and Engine Corporation” with “Navistar, Inc.” per corporate directive. 1.0 SCOPE This method covers a test procedure for determining the solid matter in engine cooling system stopleak compounds. 2.0 APPARATUS 2.1 Mortar and pestle. 2.2 100-milliliter centrifuge tube
5、 (ASTM D 96 or D 1796). 2.3 Stopper to fit 100-milliliter centrifuge tube. 2.4 Balance capable of weighing to a sensitivity of 0.1 grams. 2.5 Centrifuge capable of spinning 700 rcf at the tips of the tubes (ASTM D 96 or D 1796). 2.6 Oven capable of maintaining a temperature of 212 + 2 F. 3.0 MATERIA
6、LS 3.1 Distilled water. 3.2 Methyl alcohol. 4.0 PROCEDURE 4.1 Place approximately 25 grams of a representative sample of the stopleak compound, which has previously been crushed in a mortar and pestle, into a tared centrifuge tube and weight to the nearest 0.1 gram. 4.2 Add distilled water containin
7、g 10 percent by volume of methyl alcohol to the 100 milliliter mark on the centrifuge tube. Cap the tube and thoroughly mix the contents. Remove the can and place the tube in the contrifuge. 4.3 Centrifuge 30 minutes at 700 rcf at the tips of the tubes and decant the supernatant fluid. 4.4 Break up
8、the solid matter and repeat steps 4.2 and 4.3, three times. 4.5 Decant the supernatant fluid and dry the tube and contents over night in an oven maintained at 212 + 2 F. 4.6 Cool to room temperature and weigh the tube and contents to the nearest 0.1 gram. Retain the solid matter for test of ash cont
9、ent of solid matter, CEMS Test Method BT-27. Copyright Navistar International Corporation Provided by IHS under license with INTERNNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-NUMBER: CEMS BT-26 TITLE Solid Matter Test CURRENT ISSUE DATE: August 2009 This docume
10、nt 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 2 of 2 5.0 REPORT Calculate the percent solid matter as follows: Percent sol
11、d matter = 100 R-TS-T where R = weight of tube and solid matter S = weight of tube and sample T = weight of the empty tube Report the solid matter in percent by weight. Copyright Navistar International Corporation Provided by IHS under license with INTERNNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
