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-27 TITLE: Ash Content 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 ha
3、zardous 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 Notic
4、e: Replaced “International Truck and Engine Corporation” with “Navistar, Inc.” per corporate directive. 1.0 SCOPE This method covers test procedures for determining the ash content and the ash content of the solid matter in engine cooling system stopleak compounds. 2.0 APPARATUS 2.1 Analytical balan
5、ce capable of weighing 0.1 milligram 2.2 Mortar and pestle 2.3 Meker type burner or hot plate 2.4 Muffle furnace capable of maintaining 1500 F + 15 (800 C + 8). 2.5 Porcelain crucible 3.0 PROCEDURE FOR ASH OF COMPOUND, AS RECEIVED 3.1 Place approximately 10 grams of the well mixed combination liquid
6、 and solid compound or pellet previously crushed in a mortar and pestle and uniformly mixed, into a tared porcelain crucible and weigh crucible and contents to the nearest 0.1 gram. 3.2 Carefully heat the crucible and contents over the burner or on the hot plate until all fuming has ceased. 3.3 Plac
7、e the crucible and contents into a muffle furnace maintained at 1500 F or 800 C until all carbonaceous matter has been removed (about one hour). 3.4 Cool to room temperature and weigh to the nearest 0.1 milligram. 3.5 Repeat heating to constant weight. Copyright Navistar International Corporation Pr
8、ovided by IHS under license with INTERNNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-NUMBER: CEMS BT-27 TITLE Ash Content Test CURRENT ISSUE DATE: August 2009 This document is restricted and may not be sent outside Navistar, Inc. or reproduced without permission
9、from Corporate Technical Standards. Suppliers are required to assume all patent liability. 2009 by Navistar, Inc. AUGUST 2009 Page 2 of 2 4.0 REPORT Calculate the percent ash as follows: Percent ash = 100 A-CS-C where A = weight of the crucible and ash S = weight of the crucible and sample C = weigh
10、t of the crucible Report the ash content in percent. 5.0 PROCEDURE FOR ASH OF SOLID MATTER Repeat the procedure for ash of compound as received using 10 + 0.1 grams of well mixed solid matter obtained from the test for solid matter, CEMS Test Method BT-26. 6.0 REPORT Calculate the percent ash of sol
11、id matter as follows: Percent ash = 100 A-CM-C where A = weight of the crucible and ash M = weight of the crucible and solid matter C = weight of the crucible Report the ash content of solid matter in percent. Copyright Navistar International Corporation Provided by IHS under license with INTERNNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
