1、 ENGINEERING MATERIAL SPECIFICATIONMaterial Name Specification NumberDate Action Revisions1990 10 22 NL00E10092163001 Released L. GullenPage 1 of 8HOSE, REINFORCED RUBBER, FUEL WSL-M96D33-ARESISTANT, STATIC CONDUCTIVE1. SCOPE:This specification defines a reinforced synthetic rubber hose with goodres
2、istance to fire and fuel permeability.2. APPLICATION:This specification was released originally for fuel tank filler hoses.3. REQUIREMENTS:3.1 STATISTICAL PROCESSSuppliers must conform to the requirements of Ford Quality SystemStandard Q-101. A mutually acceptable Control Plan as describedtherein is
3、 required for material/source approval. Appropriatestatistical 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 Company, at its option, may conduct infrared and/orthermal
4、analysis of material/parts supplied to this specification.The IR spectra and thermograms established for initial approvalshall constitute the reference standard and shall be kept on fileat the designated material laboratory. All samples shall produceIR spectra and thermograms that correspond to the
5、referencestandard when tested under the same conditions.3.3 DYNAMIC MECHANICAL ANALYSIS(ASTM D 4065)Ford Motor Company, at its option, may establish a shearmodulus/damping vs. temperature curves plotted for -50 to +150 Ctemperature range for material/parts supplied to thisspecification. The shear mo
6、dulus and damping curves establishedfor initial approval shall constitute the reference standard andshall be kept on file at the designated material laboratory. Allsamples shall produce shear modulus and damping curves thatcorrespond to the reference standard when tested under the sameconditions.3.4
7、 CONDITIONING AND TEST CONDITIONSAll test values indicated herein are based on material conditionedin a controlled atmosphere of 23 +/- 2 C and 50 +/- 5 % relativehumidity for not less than 24 h prior to testing and tested underthe same conditions unless otherwise specified.ENGINEERING MATERIAL SPEC
8、IFICATION WSL-M96D33-APage 2 of 83.5 HOSE CONSTRUCTIONThe hose shall consist of a smooth bore, fuel resistant, staticconductive synthetic rubber tube reinforced with one or more pliesof braided, knit, spiral or woven fabric covered with a suitableoil and ozone resistant synthetic rubber compound.The
9、 following tests where possible, shall be performed on finished hosesand/or test specimens cut from them in accordance with ASTM D 3183(cutting knife procedure preferred). Greater variation in test valuescan be anticipated when evaluating materials that are thinner thenrecommended by an applicable I
10、ndustry Standard/Test Method.3.6 ORIGINAL PROPERTIESTube Cover3.6.1 Hardness, International tbd tbd(ASTM D 1415, micro)3.6.2 Hardness, Durometer A 70 - 80 63 - 73(ISO 868/ASTM D 2240,instantaneous plied-upspecimen. Hand helddurometers shall not be used)3.6.3 Tensile Strength, MPa, min 8.6 8.6(ISO 37
11、/ASTM D 412, Die C)3.6.4 Elongation, %, min 250 200(ISO 37/ASTM D 412, Die C)3.6.5 Modulus at 100 %Elongation, MPa, min 1.9 1.3(ISO 37/ASTM D 412, Die C)3.7 HEAT AGED(ISO 188/ASTM D 573, 150 +/- 50 Tube Coverair changes/h, 168 h at125 +/- 2 C)Hardness Change, max tbd tbdTensile Strength Change, %, m
12、ax tbd tbdElongation Change, %, max tbd tbdModulus Change, %, max tbd tbdVisual EvaluationNo surface tackiness or cracks when folded flat against itself.3.8 HEAT AGED(ISO 188/ASTM D 573, 150 +/- 50air changes/h, 1000 h at100 +/- 2 C)ENGINEERING MATERIAL SPECIFICATION WSL-M96D33-APage 3 of 8Hardness
13、Change, max + 30 + 30Tensile Strength Change, %, max - 10 - 10Elongation Change, %, max - 80 - 80Visual EvaluationNo surface tackiness or cracks when folded flat against itself.3.9 IMMERSION IN FUEL C, TUBE ONLY(ISO 1817/ASTM D 471, 48 h at23 +/- 2 C)Hardness Change, max - 30Tensile Strength Change,
14、 max - 40 %Elongation Change, max - 40 %Volume Change, max + 35 %3.9.1 Dry Out(24 h at 70 +/- 2 C)Hardness Change, max + 25Volume Change, max - 25 %(Use specimens from para 3.9)3.10 IMMERSION IN 85 % FUEL C+ 15 % METHANOL, TUBE ONLY(ISO 1817/ASTM D 471, 70 h at23 +/- 2 C)Tube CoverHardness Change, m
15、ax - 35Tensile Strength Change, max - 60 %Elongation Change, max - 60 %Volume Change, max + 60 %3.10.1 Dry Out(24 h at 70 +/- 2 C)Hardness Change, max + 25Volume Change, max - 25 %(Use specimens from 3.10)3.11 FUEL PERMEABILITY RESISTANCE 180 g/m 2 /24 h(SAE J30, except 85 % Fuel C +15 % Methanol fo
16、r 21 days)3.12 FUEL PERMEABILITY 90 g/m 2 /24 h(SAE J30, fuel C for 21 days)ENGINEERING MATERIAL SPECIFICATION WSL-M96D33-APage 4 of 83.13 COLD FLEXIBILITY AT - 40 C No cracks or breaks(FLTM BN 102-01, Procedure B)Use plugged hose after testing in para 3.9. At the end of theaging period, neither the
17、 tube nor cover shall show signs ofcracking or desintegration when examined under 7X power glass.3.14 OZONE RESISTANCE, max Rating 0(FLTM BP 101-01, Procedure B)3.13.1 Original3.13.2 After Permeability Testaccording to 3.113.15 COMPRESSION SET, max(ISO 815/ASTM D 395, Method B,except 25 % compressio
18、n, plied-up 50 85specimens, 22 h at 120 +/- 2 C)3.16 BURST PRESSURE, min(ASTM D 380)Hose Size, mm Burst pressure, MPa(Approximate I.D.)Below 9.53 1.729.53 - 15.87 1.2015.87 and above 0.343.17 STATIC ELECTRICAL RESISTANCE , max 10 megaohms(Test method tbd, measured overthe length of the part)3.18 VAC
19、UUM COLLAPSE, max 20 %(Not applicable to hoses over15.9 mm I.D. unless specified onengineering drawing)Test Method: The hose shall be subjected to a vacuum of 68 kPawhile bent over amandrel having a diameter of 10 times the nominalO.D. of the hose. After and during the 24 h at 100 +/- 2 C, theoutsid
20、e diameter shall not be less then 90 % of the original.3.19 OVALITY, min 75 %(Not applicable to hoseswith I.D. greater than 16.28 mm,unless specified on engineeringdrawing)I.D. minimumOvality = - x 100I.D. maximum3.20 ADHESION(ASTM D 413, Strip Method, Type A)ENGINEERING MATERIAL SPECIFICATION WSL-M
21、96D33-APage 5 of 83.19.1 Tube to Cover 1.0 kN/m3.21 RESISTANCE TO KINKING(Not applicable to hoses with I.D.greater than 16.28 mm, unlessspecified on engineering drawing)Test Method: Insert required length of hose on test fixturesecuring each end with metal clamps. When installing hose, itshall be be
22、nt within 5 s in the same plane and direction as itsfree state curvature. Place fixture in an oven at 120 +/- 2 C for1 h. Remove fixture from oven and within 5 minutes pass a steelball of specified diameter through hose installed on fixture. Ballmust pass freely.Nominal I.D., I.D. Limits Test Sample
23、 Ball Diametermm mm Length, mm, min mm4.8 3.58/4.34 200 1.68 +/- 0.056.4 4.88/6.76 250 2.40 +/- 0.057.9 6.91/8.33 300 3.20 +/- 0.059.5 8.51/9.91 400 3.95 +/- 0.0512.7 11.55/13.08 475 5.08 +/- 0.0515.9 14.60/16.28 690 7.87 +/- 0/05Production Metal tube - OD equal toclamps to nom. hose dia. + 0.76 mms
24、ecure hose I.D. to pass test ballSample Selection: Production hose selected for the kink test shouldrepresent, as nearly as possible, minimum wall thickness. Whenrecording results include wall thickness, ovality, and dimension “A“(see above). This dimension is measured while sample is on the testfix
25、ture.3.22 INSTALLATION EFFORT, max 89 NTest must be completed satisfactorily with initial production partsfor ISIR approval. Parts must be retested whenever any change ismade which may affect part installation effort.ENGINEERING MATERIAL SPECIFICATION WSL-M96D33-APage 6 of 8Test Method: Cut hose to
26、41 +/- 2.5 mm length and immerse one endin 20W oil to approximately 6.4 mm depth. Immediately install hoseon the test fixture with lubricated end inserted over SAE J962Style A formed tube to an engagement of 19 mm. Test loadapplication shall not exceed 1 minute.Nominal Diameter A Diameter B Diameter
27、 C(Reference) mm +/- 0.05 mm +/- 0.08 mm +/- 0.084.8 Ref SAE 3.58 9.556.4 Ref SAE 5.33 11.817.9 Ref SAE 6.91 14.689.5 Ref SAE 8.51 15.6719.1 22.5 18.30 26.2031.8 35.5 32.00 40.9038.1 42.2 38.00 47.1044.5 48.9 44.00 53.303.23 FLAMMABILITY Self extinguishing(ISO 3795) in 1 minute3.24 HOSE IDENTIFICATI
28、ONA colored tracer cord in the reinforcement of the hose may be usedfor source identification. The color shall be determined betweenPurchasing and the supplier. The word gas/fuel and the codingdescribed below shall appear on the outer cover of the hose incontrasting color and repeated at intervals o
29、f 60 mm or less.Mandrel cured hose may be coded once per part.Hose shall be identified as follows:a) Supplier identification code.b) Date of manufacture (week, year) and plant designation ifsupplier has more then one plant producing hoses to thisspecification. No space between letters. Mandatory onh
30、oses longer then 80 mm only.c) Ford trademark on hoses longer then 150 mm.d) All of the above printing shall be clearly and legiblyprinted letters of 4.5 - 6 mm in height and width. Whenhose is less then 80 mm long, width of letters may bereduced to 3 mm.ENGINEERING MATERIAL SPECIFICATION WSL-M96D33
31、-APage 7 of 8The following code format is recommended, but not mandatory:G 2 01Where:G = Plant Designation2 = Year (single digit)01 = Week (2-digit number)3.25 SOURCE IDENTIFICATION(NAAO requirement only)Each part shall have the suppliers identification which may beeither the R.M.A. plateau and pyra
32、mid symbols or the R.M.S.assigned color thread in the knit or braid reinforcement. Thepolymer stripe may be used with either above permanentidentifications.3.26 SUPPLIERS RESPONSIBILITYAll materials supplied to this specification must be equivalent inall characteristics to the material upon which ap
33、proval wasoriginally granted.Prior 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
34、shall notify Purchasing, Toxicology 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 identificationare to be submitted with the request.Substance restrictions imposed by
35、law, regulations or Ford, applyto the materials addressed by this document. The restrictions aredefined in Engineering Material Specification WSS-M99P9999-A1,unless a different suffix (e.g., A2 or A3) is specified on theengineering document for the application.4. APPROVAL OF MATERIALS:Materials defi
36、ned by this specification must have prior approval by theresponsible Materials Engineering activity. Suppliers desiring approvalof their materials shall first obtain an expression of interest from theaffected Purchasing, Design and Materials Engineering activity. Uponrequest, the Supplier shall subm
37、it to the affected Materials Engineeringactivity its own laboratory report to the specification (test results,not nominal values), the material designation and code number, and testspecimens for Ford evaluation. Upon approval, the material will be addedto the Engineering Material Approved Source Lis
38、t.5. GENERAL INFORMATION:The information below is provided for clarification and assistance inmeeting the requirements to the specification.ENGINEERING MATERIAL SPECIFICATION WSL-M96D33-APage 8 of 85.1 HEAT AGED(ISO 188/ASTM D 573, 150+/- 50 air changes/h,70 h at 125 +/- 2 C) Tube CoverHardness Change, max + 25 + 20Tensile Strength Change, % max - 25 - 10Elongation, % max - 65 - 65Visual EvaluationNo surface tackiness or cracks when folded flat against itself.
