1、 ENGINEERING MATERIAL SPECIFICATIONMaterial Name Specification NumberDate Release No. Release/Revision1990-09-03 EP00E01031539000 A2-version added1990-07-02 EP00E01031537000 D-MB/PQ-13 K.Wolters conc. J.SchultWP 3948-a Page 1 of 2 THINNER ESK-M14J250-ATHINNER ESK-M14J250-A21. SCOPEThe materials defi
2、ned by these specifications are solvent mixtures.2. APPLICATIONThese specifications were released originally for materi als used as thinnerfor two pack paint materials for plastics.3. REQUIREMENTS3.1 STATISTICAL PROCESSSupplie rs must conform to the requirements of Ford Quality SystemStand ard Q-101
3、 A mutually acceptable Control Plan as describedtherein is required for material/source approval. Appropriatestatist ical tools must be used to analyze process/product data sothat variation in the final product is continuously reduced.3.2 INFRARED SPECTROPHOTOMETRY AND/OR THERMAL ANALYSISFord Motor
4、 Company, at its option, may conduct infrared and/ortherma l analysis of material/parts supplied to this specification.The IR spectra and thermograms established for i nitial approval shallconst itute the reference standard and shall be kept on file at thedesignated material laboratory. All samples
5、sha ll produce IR spectraand thermograms that correspond to the reference standard when testedunder the same conditions.3.3 COMPOSITIONESK-M14J250-A: ESK-M14J250-A2:Diacetone alcohol 50 % Xylene 25 %Methyl isobutyl ketone 35 % Methoxy propyl acetate 50 %Butyl acetate 15 % Buthyl acetate 25 %3.4 PROP
6、ERTIES3.4.1 Density at 20 C ESK-M14J250-A: 0,878 - 0,882 g/mL(ASTM D 1475) ESK-M14J250-A2: 0,914 - 0,918 g/mL3.4.2 Flash Point 21 C(ASTM D 56)ENGINEERING MATERIAL SPECIFICATIONESK-M14J250-A/-A2WP 3948-b Page 2 of 2 3.4.3 Refractive Index ESK-M14J250-A: 1,390 - 1,412(ASTM D 1218) ESK-M14J250-A2: 1,42
7、2 - 1,4263.4.4 Colour colourless3.5 SUPPLIERS RESPONSIBILITYAll materials supplied to this specification must be equivalent inal l characteristics to the material upon which approval wasoriginally granted.Pr ior to making any changes in the properties, composition,co nstruction, color, processing or
8、 labelling of the materialorig inally approved under this specification, whether or not suchchange s affect the materials ability to meet the specificationrequir ements, the Supplier shall notify Purchasing, Toxicology andthe affected Materials Engineering activity of the proposed changesand obtain
9、the written approval of the Materials Engineeringactivity. Test data, t est samples and a new code identification areto be submitted with the request.Substance restrictions imposed by law, regulations or Ford apply tothe materials addressed by this document. The restrictions aredefined in Engineerin
10、g Material Specification WS S-M99P9999-A1, unlessa different suffix (e.g., A2 or A3) is specified on the engineeringdocument for the application.4. APPROVAL OF MATERIALSMat erials defined by this specification must have prior approval by theresp onsible Materials Engineering activity. Suppliers desi
11、ring approvalof thei r materials shall first obtain an expression of interest from theaffec ted Purchasing, Design and Materials Engineering activity. Uponrequest, the supplier shall sub mit to the specification (test results, notnominal values), the material designation and code number, and testspe
12、cim ens for Ford evaluation. Upon approval, the material will be addedto the Engineering Material Approved Source List.5. GENERAL INFORMATIONThe information given below is provided for assistance and clarificationand does not represent requirement(s) to this specification.5.1 FLASH POINT ESK-M14J250-A: 23 C(ASTM D 56) ESK-M14J250-A2: 32 C5.2 DISTILLATION RANGE ESK-M14J250-A: 111 - 168 C(ASTM D 1078) ESK-M14J250-A2: 124 - 148 C5.3 SHELF STABILITY 2 YearsNo change of properties and no colour change after a storage time oftwo years in the closed original container.
