1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions Rev. 03 2017 02 04 Revised See summary of revisions A. Reaume/G. Kowalski, NA 2016 04 06 Revised See summary of revisions G. Kowalski, NA 2001 07 19 Activated J. Spencer, NA Controlled document at www.MATS Copyright 2017, Ford; Global Technol
2、ogies, LLC Page 1 of 5 HOSE, REINFORCED RUBBER, DIESEL FUEL WSS-M96D33-B1 RESISTANT, CONDUCTIVE, HNBR TUBE/CPE OR CSM COVER 1. SCOPE This specification defines a conductive, reinforced elastomeric hose with a non-barrier layer construction and having a conductive tube that is resistant to diesel fue
3、l and a cover that is heat and ozone resistant. 2. APPLICATION This specification was released originally for diesel fuel filler hose and vent lines. Long term continuous operating temperature should not exceed 100 C and maximum intermittent temperature excursions should not exceed 125 C. 3. REQUIRE
4、MENTS 3.1 APPROVED SOURCES This specification requires the use of approved sources. Only the sources identified on the Ford Approved Source List (ASL) can be used when this specification is listed on the drawing, CAD file, or other documents. The list of approved sources is located within Ford at o
5、r available externally through a Ford Materials Engineer. 3.2 CONDITIONING AND TEST CONDITIONS All test values are based on material conditioned for not less than 24 h prior to testing in a controlled environment of 23 +/- 2 C and 50 +/- 5% relative humidity. Testing of the material should occur in
6、the conditioning environment or soon after removal. 3.3 INFRARED SPECTROPHOTOMETRY AND/OR THERMAL ANALYSIS IR spectra and thermograms from initial material approval shall constitute the reference standard and shall be kept on file at the designated material laboratory. The material supplier shall en
7、sure that all future material supplied to the specification shall produce IR spectra and thermograms that correspond to the reference standard when tested under the same conditions. 3.4 INITIAL QUALIFICATION Suppliers seeking approval to this specification must meet the initial qualification process
8、es that include evaluating materials and constructions according to the applicable Fuel System Design Specification (SDS) and individual Design Verification Methods (DVM). 3.5 LIMITATIONS Vapor lines can be either conductive or non-conductive. Liquid caring lines must be conductive. This material do
9、es not contain UV stabilizers, long term exposure to direct sunlight will cause cracking. All components exposed to direct sunlight must contain UV stabilizers. ENGINEERING MATERIAL SPECIFICATION WSS-M96D33-B1 Copyright 2017, Ford Global Technologies, LLC Page 2 of 5 3.6 HOSE CONSTRUCTION The hose c
10、onsists of an inner tube of diesel fuel resistant elastomer such as nitrile rubber (HNBR), one ply of braided, knit, or spiral woven fabric, and a cover of heat and ozone resistant elastomer such as chlorinated polyethylene or chlorosulphonated polyethylene (CPE/CSM). Deviations from the above sugge
11、sted elastomers must be agreed upon between supplier and Ford Motor Company Materials Engineering. 3.7 ADDITIONAL REQUIREMENTS Requirements beyond those explicitly stated in this document and the material specification may be specified on the Engineering drawing, Engineering specification (ES), perf
12、ormance specification, System Design Specification (SDS) and/or Attribute Requirement List (ARL). 3.8 PERFORMANCE CRITERIA Materials approved to this specification must also be approved to the fuel system polymeric materials performance standard: WSS-M98P14-A6 Tube Cover 3.8.1 Hardness Durometer A 7
13、0 80 70 80 (ISO 868/ASTM D2240 Instantaneous, plied up Specimen. Hand held Durometers shall not be used) 3.8.2 Tensile Strength, MPa, min 13.5 9.0 (ISO 37/ASTM D412, Die C) 3.8.3 Elongation at Break, %, min 300 250 (ISO 37/ASTM D412, Die C) 3.8.4 Modulus at 100% 2.5 2.5 Elongation, MPa, min ISO 37/A
14、STM D412, Die C) 3.8.5 Heat Aged (ISO 188/ASTM D573, 150 +/- 50 air changes/h, 168 h at 125 C) 3.8.5.1 Hardness Change, max N/R +15 3.8.5.2 Tensile Strength Change, %, max N/R -30 3.8.5.3 Elongation Change, %, max N/R -50 3.8.6 Burst Pressure (ASTM D380) Hose Size, (Approximate I.D.) Complete Constr
15、uction Below 9.53, mm 1.02 MPa, min 9.53 15.87, mm 0.68 MPa, min 15.87 mm and larger 0.34 MPa, min 3.8.7 Compression Set 75% max (FLTM BP 108-6, 70 h at 100 C, 25% compression) ENGINEERING MATERIAL SPECIFICATION WSS-M96D33-B1 Copyright 2017, Ford Global Technologies, LLC Page 3 of 5 3.8.8 Electrical
16、 Resistance Surface resistivity (SAE J2260) less than or equal to 1 x 106 Ohms 3.8.9 Vacuum Collapse Complete Construction (SAE J30R11) Test Method: For straight hose, a 1 m length of hose or the assembly shall be held in a straight line. On preformed parts, the vacuum collapse test shall be perform
17、ed on the finished part. No diameter shall decrease by more than 20 % during the application of vacuum for a minimum of 15 seconds and not more than 60 seconds. Hose sizes as listed below shall be subjected to the corresponding vacuum pressure: Nominal hose ID 44.5 mm 10 kPa 20 % max 3.8.10 Ovality
18、75% min (Not applicable to hoses with I.D. greater than 16.28 mm, unless otherwise specified on engineering drawing) Ovality = I.D. minimum x 100 I.D. maximum 3.8.11 Resistance to Kinking Ball must pass freely (SAE J30, para 6.5.11) 3.8.12 Flammability Resistance, Cover Stock Only Self- extinguishin
19、g (ISO 3795) within 60 seconds 3.8.13 Hose Identification The colored tracer cord in the reinforcement of the hose may be used for source identification. The color shall be determined between Purchasing and the supplier. The word gas/fuel and the coding described below shall appear on the outer cove
20、r of the hose in contrasting color and repeated at intervals of 60 mm or less. Mandrel cured hose may be coded once per part. The following format is recommended: a) Supplier identification code. b) Date of manufacture (week, year) and plant designation if supplier has more than one plant producing
21、hoses to this specification. No space between letters. Mandatory on hoses longer then 80 mm only. c) Ford trademark on hoses longer then 150 mm. d) All of the above printing shall be clearly and legibly printed letters of 4.5 - 6 mm in height and width. When hose is less then 80 mm long, width of le
22、tters may be reduced to 3 mm. ENGINEERING MATERIAL SPECIFICATION WSS-M96D33-B1 Copyright 2017, Ford Global Technologies, LLC Page 4 of 5 The following code format is recommended, but not mandatory: G 2 01 Where: G = Plant Designation 2 = Year (single digit) 01 = Week (2-digit number) 3.9 PERFORMANCE
23、 CRITERIA REPORT ONLY Materials approved to this specification must also be approved to the fuel system polymeric materials performance standard: WSS-M98P14-A2 Tube Cover 3.9.1 Hardness International Report Report (ISO 48/ASTM D1415, micro) 3.9.2 Original Breaking Strength and elongation at Break (E
24、ntire Hose Construction, 50 mm/minute) Test Method: Record the I.D. and O.D. of a 150 mm straight length of hose and clamp the hose on suitable fittings in a tensile testing machine to prevent pull-off. Apply gage marks or extensometers to the hose to measure elongation. Apply a load at a rate of 50
25、 mm/minute until the hose ruptures. Record the force to break the hose and the elongation of the hose at break. Calculate the hose breaking strength by dividing the breaking force by the annular cross-sectional area of the hose wall. Median values are to be used for reported values 3.9.2.1 Breaking
26、Strength Report, MPa 3.9.2.2 Elongation at Break Report, % 4. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the requirements of this specification. Contact for questions concerning Engineering Material Specifications. 4.1 GENERIC IDENTIFICAT
27、ION AND MARKING OF ELASTOMERIC PRODUCTS (ISO 1043/11469) HNBR/CPEHNBR/CSM 4.2 APPROVAL OF MATERIALS Suppliers desiring approval of their materials shall first obtain an expression of interest from Purchasing, Design or Product Development, and Materials Engineering. The supplier shall submit a compl
28、eted copy of their laboratory test reports, signed by a qualified and authorized representative of the test facility, demonstrating full compliance with all the requirements of the Material Specification. Tested material samples must be available for review upon request and kept for a minimum of one
29、 year. Upon request, the supplier will review the associated quality control documents (Process Failure Mode and Effects Analysis, Control Plans, Certification testing) with Ford. 4.3 SUPPLIERS ONGOING RESPONSIBILITY All materials must be equivalent in all characteristics to the material upon which
30、approval was originally granted. ENGINEERING MATERIAL SPECIFICATION WSS-M96D33-B1 Copyright 2017, Ford Global Technologies, LLC Page 5 of 5 Prior to making any changes to the material originally approved, whether or not such changes affect the materials ability to meet the specification requirements
31、, the supplier shall notify the affected Supplier Technical Assistance (STA), Purchasing, and Materials Engineering activities of the proposed changes (with reasons) by submission of a completed Suppliers Request for Engineering Approval, SREA. For parts and components using Ford Engineering Materia
32、l Specifications, all samples tested to the specifications for Design Verification (DV), Production Verification (PV) and Production Part Approval Process (PPAP) sign off must be kept until Job 1. 4.4 RESTRICTED SUBSTANCE MANAGEMENT STANDARD Substance restrictions imposed by regulations or Company d
33、irection applies to the materials addressed by this document. The restrictions are identified in the Restricted Substance Management Standard WSS-M99P9999-A1 which is updated yearly. It is the suppliers responsibility to comply with this standard on a continuing basis through IMDS and or GMAP report
34、ing. 5. SUMMARY OF REVISIONS 2017 02 04 Renumbered. Added standard requirements from WSS-M99P1111-A into this spec. o Para 3.1 Added approved sources o Para 4.2 Approval of materials o Para 4.3 Added suppliers ongoing responsibility o Para 4.4 Added restricted substance management standard Para 3.4
35、Added initial qualifications Para 3.5 Added limitations Para 3.7 Added additional requirements Para 3.8.14 Added hose identification Para 3.9 Added performance criteria report only Para 3.9.2 Added original breaking strength and elongation at break The following paragraphs are covered in WSS-M98P14-
36、A2 Previous Para 3.6 Removed heat aged (1000 hours) Previous Para 3.8 Removed immersion in fuel C Previous Para 3.9 Removed immersion in diesel fuel Previous Para 3.10 Removed ozone resistance Previous Para 3.13 Removed cold flexibility Previous Para 3.16 Removed adhesion Previous Para 3.18 Removed
37、installation effort 2016 04 06 Updated general information Corrected typos in 3.4 and 4.1 2015 06 19 Para 2. Removed max working pressure- covered in ES specification Para 3.5.6 Comp. set added max Para 3.11 Burst pressure added min Para 3.12 Vacuum collapse added max Para 3.15 Removed Permeation Rate from spec was TBD for value Para 3.15 Fire resistance added clarification to the requirement Para 3.16 Adhesion added min Renumbered Para 3.16 to 3.20
