1、 ENGINEERING MATERIAL SPECIFICATION Material Name Specification Number Date Release No. Released 2010 02 24 A- N-STATUS No replacement named L. Sinclair, NA 1994 12 02 Revised and Retyped, was 9 pages 1971 05 13 2G/CB7058JB Last release WP 3948-a Page 1 of 5 SINGLE OR MULTIPLE PLUG NOT TO BE USED FO
2、R NEW DESIGN S-M99D4580-A SINGLE OR MULTIPLE PLUG INACTIVE S-M99D4580-B 1. SCOPE The material defined by this specification is a single or multiple plug made of a PVC or PVC copolymer moulding compound. 2. APPLICATION This material is used for single and multiple plugs for the 6 and 12 volts wiring
3、systems in motor vehicles. 3. REQUIREMENTS Note: The material under test shall be conditioned for a minimum of 24 h at 23 +/- 2 C and 50 +/- 5 % relative humidity prior to test and tested under the same conditions. 3.1 ORIGINAL PROPERTIES, Slab Stock 3.1.1 Density, max 1.45 Mg/m3(ASTM D 792) 3.1.2 S
4、hore Hardness 70 +/- 5 or as specified on (ASTM D 2240, 15 s dwell Engineering drawing 3.1.3 Tensile Strength at Break, min 10 N/mm2(ASTM D 412, Die C) 3.1.4 Elongation at Break, min 150 % (ASTM D 412, Die C) 3.1.5 Tear Strength, min 30 N/mm (ASTM D 624, Die C) 3.2 CHANGE OF ORIGINAL PROPERTIES AFTE
5、R HEAT AGING (ASTM D 573, 168 h at 80 +/- 1 C) 3.2.1 Shore Hardness “A“, max +/- 5 3.2.2 Tensile Strength at Break, max - 20 % ENGINEERING MATERIAL SPECIFICATION S-M99D4580-A S-M99D4580-B WP 3948-b Page 2 of 5 3.2.3 Elongation at Break, max - 20 % 3.2.4 Tear Strength, max - 15 % 3.3 COLD FLEXIBILITY
6、 Shall not break or show cracks (FLTM EU-BN 2-1, at - 40 +/- 1 C mandrel 10 times the sample thickness specimen dimensions 200 x 200 mm) 3.4 VOLUME RESISTIVITY, min 2 x 10E10 ohms x cm (ASTM D 257) 3.5 FINISHED PART REQUIREMENTS 3.5.1 Color As specified on Engineering drawing 3.5.2 Dimensions As spe
7、cified on Engineering drawing 3.5.3 Density, max 1.45 Mg/m3(ASTM D 792) 3.5.4 Shore Hardness A 70 +/- 5 or as specified on (ASTM D 2240, after Engineering drawing 15 s dwell) 3.5.5 Heat Ageing The material shall not become tacky, show cracks or other failures when stored in a mechanical convection o
8、ven at 100 +/- 2 C for 24 hours. Examination shall be done after conditioning the material to room temperature. 3.5.6 Oil Resistance The material shall not be visibly attacked or show evidence of failure. Test Method: Immerse sample in engine oil according to SS-M2C9001-AA at room temperature for 48
9、 hours. 3.5.7 Gasoline Resistance The material shall not be visibly attacked or show evidence of failure. Test Method: Immerse sample in ASTM Fuel B at room temperature for 5 minutes. Remove and let dry for 5 minutes at room temperature. Repeat this cycle 4 times. ENGINEERING MATERIAL SPECIFICATION
10、S-M99D4580-A S-M99D4580-B WP 3948-b Page 3 of 5 3.5.8 Effect of Corrosion There shall be no evidence of either green coloration or red coloration (dezincing). Light tarnishing is permissible. Test Method: Cut from material under test pieces of about the size of rice particles and condition approx. 2
11、 g in a humidity cabinet maintained at 23 +/- 2 C and 90 +/- 2 % relative humidity for 48 hours. Place together with a blank brass strip (BS 265, 1963, Type CZ 108) 150 mm in length in a test tube of 15 mm diameter and close with a glass stopper. Expose in vertical position in a mechanical convectio
12、n oven maintained at 80 +/- 2 C for 144 hours. Carry out a blank test with a brass strip only at the same time. Definition of Terms for the Purpose of this Test: Tarnishing: Glazed coloration, similar to the one occurring with steel while tempering, which does not cover the base metal and which do n
13、ot give any appreciable quantity of corrosion products when scraped off. Green Coloration: A definite green coloration on non-ferrous metals which in many cases could be scraped off in sufficient quantity as a green product due to corrosion. Dezincing: Characteristic corrosion occurring with brass a
14、s an external bright red coloration in which the brass is impoverished in zinc through loss of same and can be seen in polished sections (in a micrograph). 3.6 SPECIFIC REQUIREMENTS OF FINISHED PART Specific requirements for the finished part, if required, shall be as specified on Engineering Drawin
15、g. 3.7 FLAMMABILITY 3.7.1 S-M99D4580-A (FLTM EU-BN 24-1, flame applied for 15 s) The material shall not burn or smoulder 15 seconds after removal of flame. 3.7.2 S-M99D4580-B (FLTM EU-BN 24-2) Burn Rate, max 100 mm/minute ENGINEERING MATERIAL SPECIFICATION S-M99D4580-A S-M99D4580-B WP 3948-b Page 4
16、of 5 Note to Flammability: The flammability shall be determined on 100 x 355 mm specimen with a thickness of 1.0 - 1.2 mm and smooth surfaces. In order to comply with Federal Motor Vehicle Safety Standard No. 302, the materials, portions of components, and composites shall not burn or transmit a fla
17、me across their surface, at a rate of more than 100 mm/minute. To demonstrate compliance, the sample size and method of testing shall be in accordance with FLTM EU BN 24-2. 3.8 PERFORMANCE-ENVIRONMENTAL AGEING REQUIREMENT All materials, portions of components, and composites defined by this specific
18、ation that have not been treated, modified or reformulated, and exceed a maximum burn rate of 75 mm per m as specified by the Flammability Lot Sampling Plan of FLTM EU-BN 24-2, must be evaluated for permanency of the materials flame retardant properties per SK-M99P9500-A, Table 1 according to the ac
19、celerated environmental ageing requirements applicable to the basic material category of this particular specification. Any material, portions of components, and composites defined by this specification that have been treated, modified or reformulated to conform to Flammability Lot Sampling Plan of
20、FLTM EU-BN 24-2, regardless of maximum burn rate, must be evaluated for both permanency of materials flame retardant properties and changes in mechanical, chemical and physical properties per SK-M99P9500-A, Table 1 applicable to the basic material category of this particular specification. 3.9 SUPPL
21、IERS RESPONSIBILITY All materials supplied to this specification must be equivalent in all characteristics to the material upon which approval was originally granted. Prior to making any change in the properties, composition, construction, color, processing or labeling of the material originally app
22、roved under this specification, whether or not such changes affect the materials ability to meet the specification requirements, the Supplier shall notify Purchasing, Toxicology and the affected Materials Engineering activity of the proposed changes and obtain the written approval of the Materials E
23、ngineering activity. Test data, test samples and a new code identification are to be submitted with the request. Substance restrictions imposed by law, regulations or Ford, apply to the materials addressed by this document. The restrictions are defined in Engineering Materials Specification WSS-M99P
24、9999-A1. ENGINEERING MATERIAL SPECIFICATION S-M99D4580-A S-M99D4580-B WP 3948-b Page 5 of 5 4. APPROVAL OF MATERIALS Materials defined by this specification must have prior approval by the responsible Materials Engineering activity. Suppliers desiring approval of their materials shall first obtain a
25、n expression of interest from the affected Purchasing, Design and Materials Engineering activity. Upon request, the Supplier shall submit to the affected Materials Engineering activity a completed copy of their laboratory test reports, signed by a qualified and authorized representative of the test
26、facility, demonstrating full compliance with all the requirements of this specification (test results, not nominal values), the material designation and code number, and test specimens for Ford evaluation. Fords engineering approval of a material will be based on its performance to this specification and on an assessment of suitability for intended processes and/or applications. Upon approval, the material will be added to the Engineering Material Approved Source List.
