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. 2014 by Navistar, Inc. August 2014 Page 1 of 2 NAVISTAR, INC. Material, Parts, and Process Specification
2、s (MPAPS) NUMBER: MPAPS BT-27 Former Designation: CEMS BT-27 TITLE: Ash Content Test CURRENT REV No.: 1408 DATE: Aug 2014 WRITTEN/EDITED BY: Materials Engineering APPROVED BY: Materials Engineering SUPERSEDES: CEMS BT-27 - August 2009 PRINTED COPIES OF THIS DOCUMENT MUST BE VERIFIED FOR CURRENT REVI
3、SION This specification 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 regula
4、tory limits prior to use. Change Notice: Updated to new MPAPS format; editorial changes. 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 balance capable of w
5、eighing 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 and solid comp
6、ound 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 Place the crucible
7、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. 4.0 REPORT Calculate the percent ash as follows: Percent ash =
8、 100 A-CS-C where A = weight of the crucible and ash S = weight of the crucible and sample C = weight of the crucible Report the ash content in percent. NUMBER: MPAPS BT-27 TITLE: Ash Content Test REVISION: 1408 This document is restricted and may not be sent outside Navistar, Inc. or reproduced wit
9、hout permission from Corporate Technical Standards. Suppliers are required to assume all patent liability. 2014 by Navistar, Inc. August 2014 Page 2 of 2 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 obtaine
10、d from the test for solid matter, MPAPS Test Method BT-26. 6.0 REPORT Calculate the percent ash of solid 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
11、in percent. 7.0 TECHNICAL INFORMATION For further information related to the technical content of this specification, contact: Suppliers may purchase controlled copies of this specification by contacting: Materials Engineering and Technology Dept. 10400 W. North Avenue Melrose Park, IL 60160 E-mail: MaterialsEngineeringN IHS Global Inc. 15 Inverness Way East Englewood CO 80112-5776 Phone: 1-800-854-7179 E-mail: AutomotiveIHS.com Website: http:/
