1、 ENGINEERING MATERIAL SPECIFICATIONMaterial Name Specification NumberDate Action ChangesG01G02G02G03 G01G05 G01G06 G07G08G09G0AG0BG0CG09G0DG0E G0FG10 G11G12G0DG0DG13WP 3948-a Page 1 of 3RETARDER SOLVENT WSS-M14J513-A1. SCOPEThe material defined by this specification is Ethylene Glycol mono n-Butyl E
2、ther Acetate (n-Butyl Cellosolve Acetate).2. APPLICATIONThis specification was originally released for material used as aretarder solvent.3. REQUIREMENTS3.1 QUALITY SYSTEM REQUIREMENTSMaterial suppliers and part producers must conform to QualitySystem Requirements, QS-9000. Material specification re
3、quirementsare to be used for initial qualification of materials. A ControlPlan for ongoing production verification is required. This planmust be reviewed and approved by the relevant Ford Materialsactivity and/or Ford Supplier Technical Assistance (STA) prior toproduction parts submission. Appropria
4、te statistical tools must beused to analyze process/product data and assure consistentprocessing of the materials.Part producers using this material in their products, must use Fordapproved materials and must conform to a process control plan whichhas been approved by STA and/or the relevant Materia
5、ls Activity.3.2 INFRARED SPECTROPHOTOMETRY AND/OR THERMAL ANALYSISFord Motor Company, at its option, may conduct infrared and/orthermal analysis of material/parts supplied to this specification.The IR spectra and thermograms established for initial approvalshall constitute the reference standard and
6、 shall be kept on fileat the designated material laboratory. All samples shall produce IRspectra and thermograms that correspond to the reference standardwhen tested under the same conditions.3.3 COMPOSITIONEthylene Glycol mono n-Butyl Ether Acetate (n-Butyl CellosolveAcetate).Also known commerciall
7、y as 2-Butoxy-Ethyl Acetate, Butyl EthoxolAcetate, Butyl Glycol Acetate and Butyl Glycol Ether Acetate.ENGINEERING MATERIAL SPECIFICATIONWSS-M14J513-AWP 3948-b Page 2 of 33.4 PROPERTIES3.4.1 Density at 20 C 0.942(ASTM D 1298) +/- 0.02 g/ml3.4.2 Flash Point 88 C(ASTM D 56)3.4.3 Boiling Point 191 C(AS
8、TM D 1078)3.4.4 Boiling Range 186 - 194 C(ASTM D 1078)3.4.5 Refractive Index 1.413(ASTM D 1218) +/- 0.0023.4.5 Color Colorless3.5 SUPPLIERS RESPONSIBILITYAll materials supplied to this specification must be equivalent inall characteristics to the material upon which approval wasoriginally granted.Pr
9、ior to making any change in the properties, composition,construction, color, processing or labeling of the materialoriginally approved under this specification, whether or not suchchanges affect the materials ability to meet the specificationrequirements, the Supplier shall notify Purchasing, Toxico
10、logy andthe affected Materials Engineering activity of the proposed changesand obtain the written approval of the Materials Engineeringactivity. Test data, test samples and a new code identification areto be submitted with the request.Substance restrictions imposed by law, regulations or Ford, apply
11、to the materials addressed by this document. The regulations aredefined in Engineering Materials Specification WSS-M99P9999-A1.4. APPROVAL OF MATERIALSMaterials defined by this specification must have prior approval by theresponsible Materials Engineering activity. Suppliers desiring approvalof thei
12、r materials shall first obtain an expression of interest from theaffected Purchasing, Design and Materials Engineering activity. Uponrequest, the Supplier shall submit to the affected Materials Engineeringactivity a completed copy of their laboratory test reports, signed by aqualified and authorized
13、 representative of the test facility,demonstrating full compliance with all the requirements of thisspecification (test results, not nominal values), the materialdesignation and code number, and test specimens for Ford evaluation. Fords engineering approval of a material will be based on itsperforma
14、nce to this specification and on an assessment of suitabilityfor intended processes and/or applications. Upon approval, the materialwill be added to the Engineering Material Approved Source List.ENGINEERING MATERIAL SPECIFICATIONWSS-M14J513-AWP 3948-b Page 3 of 35. GENERAL INFORMATIONThe information
15、 given below is provided for clarification and assistancein meeting the requirements of this specification5.1 Surface Tension 35.1 dynes/cmat 25 C5.2 Viscosity 22 S/F2/25 C1.8 mPa.s/25 C5.3 Shelf Stability 2 yearsNo change in properties and no change in color after a storage timeof 2 years at normal room temperature in the closed originalcontainer.
