1、 WORLDWIDE ENGINEERING STANDARDS Test Procedure GMW16449 Electrical Component Fluid Compatibility Copyright 2012 General Motors Company All Rights Reserved September 2012 Originating Department: North American Engineering Standards Page 1 of 6 1 Scope Note: Nothing in this standard supercedes applic
2、able laws and regulations. Note: In the event of conflict between the English and domestic language, the English language shall take precedence. Note: Fluids, test procedures and pass/fail criteria may be adjusted, added or eliminated and detailed in the part specific Component Technical Specificati
3、on (CTS) requirements based on component construction, IPC code (see 7.1), application location and propensity of fluids to come in contact with the component. Parts shall be evaluated with production intent stresses unless otherwise noted. Consult with responsible materials and electrical validatio
4、n engineer prior to testing. 1.1 Purpose. Electrical and electronic (E/E) components are exposed to a variety of different fluids. Exposure to these fluids may affect the functionality of these electrical or electronic devices. The fluid compatibility tests are intended to assure that vehicle operat
5、ing liquids, chemicals and oils will not degrade the materials, identification or function of the E/E components. Although other fluids beyond those in the list could come into contact with the E/E component, these fluids were considered more aggressive. The following list of fluids was selected bas
6、ed on the likelihood of exposure and the severity of exposure. This document is to supplement GMW3172, GMW3431, and the component Statement of Requirements (SOR). 1.2 Foreword. Not applicable. 1.3 Applicability. All electrical components. Method A is only applicable to portions of the part that are
7、visible to the vehicle occupants. 2 References Note: Only the latest approved standards are applicable unless otherwise specified. 2.1 External Standards/Specifications. ISO 105-A02 2.2 GM Standards/Specifications. 9981285 9986153 B 040 1073 GMW3431 9985010 9986177 B 040 1076 GMW14334 9985129 998619
8、6 B 040 1370 GMW14444 9985809 9986201 B 040 1990 GMW14445 9985821 9986232 B 040 2030 GMW14867 9985998 9986298 B 040 2071 HN1992 9986086 B 040 0010 GMW3172 HN2464 9986117 B 040 0218 GMW3221 9986121 B 040 1068 GMW3356 2.3 Additional References. 1050172 1050173 1051515 1052626 12378401 Copyright Genera
9、l Motors Company Provided by IHS under license with General Motors CompanyNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-GM WORLDWIDE ENGINEERING STANDARDS GMW16449 Copyright 2012 General Motors Company All Rights Reserved September 2012 Page 2 of 6 92191531 92740
10、23 GMPT-5-005-A GMPT-5-019-A 3 Resources 3.1 Facilities. Not applicable. 3.2 Equipment. Apparatus for conditioning to GMW3221. 3.2.1 Containers of sufficient capacity to hold test pieces. 3.2.2 Test Medium. Refer to table in Appendix A. Fluids listed under the test specification/part number shall be
11、 used for each region. If a specific product is not available in your area, use similar products, obtain agreement from material and/or validation engineer, and note deviation in the test plan and results. 3.3 Test Vehicle/Test Piece. Not applicable. 3.4 Test Time. Not applicable. 3.5 Test Required
12、Information. Not applicable 3.6 Personnel/Skills. Not applicable. 4 Procedure 4.1 Preparation. Test pieces shall be tested immediately after conditioning to GMW3221, Code A. 4.2 Conditions. Conditioning and testing shall not be performed within 72 h of manufacture. 4.2.1 Environmental Conditions. 4.
13、2.2 Test Conditions. Deviations from the requirements of this standard shall have been agreed upon. Such requirements shall be specified on component drawings, test certificates, reports, etc. Such requirements shall be specified on Component Technical Specifications (CTS). Deviations from the requi
14、rements of this standard shall have been agreed upon with the electrical validation and materials engineer. Each fluid must be applied on a minimum of three samples. If a single component is large enough, more than one fluid may be applied to the component but not at the same location. 4.3 Instructi
15、ons. 4.3.1 Method A “Normal Cleaning”. Apply 1 mL each of commercial window cleaner and commercial vehicle cleaning agent in separate locations to the sample. Wait 60 s; then rub the area with at least 50 mm long strokes for 10 double rubs using a folded cheesecloth. Allow the sample to condition fo
16、r 24 h prior to evaluating. 4.3.2 Method B “Brush Test”. If the component is large enough, more than one fluid may be applied but not at the same location. Apply a brushed on coating uniformly over the surface of the sample. Follow with a 48 h soak in a closed container or bell jar approximately 500
17、% of the part(s) volume in capacity. The brush shall be a toothbrush (or equivalent) with a handle made of a non-reactive material. The toothbrush shall be used exclusively for a single solvent; and when there is any evidence of softening, wear, bending or loss of bristles, it shall be discarded and
18、 replaced. 4.3.3 Method C “Pour Test” Unpowered Device. Mount sample in a manner consistent with its application position. Pour 200 mL of fluid over part. Wipe excess fluid from the surface and allow to dry for 24 h. 4.3.4 Method D “Pour Test” Powered Device. Follow GMW3172, Sugar Water Functional I
19、mpairment. 4.3.5 Method Z “Other“. Per referenced specification listed in Appendix A. Copyright General Motors Company Provided by IHS under license with General Motors CompanyNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-GM WORLDWIDE ENGINEERING STANDARDS GMW164
20、49 Copyright 2012 General Motors Company All Rights Reserved September 2012 Page 3 of 6 5 Data 5.1 Calculations. 5.2 Interpretation of Results. Acceptance Criteria is outlined in 5.2.1 thru 5.2.3. 5.2.1 Method A “Normal Cleaning”. There shall be no objectionable soiling, staining or change in appear
21、ance. A reading of 4 will be considered a pass per the American Association of Textile Chemists and Colorists (AATCC) Gray Scale per ISO 105-A02. 5.2.2 Methods B and C. The fluid shall not melt, crack, craze, or crystallize the surface of the part. Graphics and labeling appliqus shall not chip, crac
22、k, dissolve, or be removed upon application of the fluid. The device shall be capable of meeting all performance requirements upon completion of the exposure method. Pictures or samples must be provided to responsible GM Materials engineer. If specified per Component Technical Specification (CTS), p
23、art shall pass the functional/parametric test per GMW3172 after exposure to fluid. 5.2.3 Method D. Follow GMW3172, Sugar Water Functional Impairment. 5.3 Test Documentation. Results shall be presented in a test report for each fluid detailed in Appendix A. 6 Safety This standard may involve hazardou
24、s materials, operations, and equipment. This standard does not propose to address all the safety problems associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prio
25、r to use. 7 Notes 7.1 Glossary. IPC: Association Connecting Electronics Industries (www.ipc.org) 7.2 Acronyms, Abbreviations, and Symbols. AATCC American Association of Textile Chemists and Colorists CTS Component Technical Specification E/E Electrical/Electronic SOR Statement of Requirements 8 Codi
26、ng System This standard shall be referenced in other documents, drawings, etc., as follows: Test to GMW16449 9 Release and Revisions This standard was originated in October 2010. It was first approved by the Plastics GSSLT in January 2011. It was first published in January 2011. Issue Publication Da
27、te Description (Organization) 1 JAN 2011 Initial publication. 2 SEP 2011 Update Table A1. (Plastics GSSLT) 3 SEP 2012 Correct meaning of IPC. (Plastics GSSLT) Copyright General Motors Company Provided by IHS under license with General Motors CompanyNot for ResaleNo reproduction or networking permitt
28、ed without license from IHS-,-,-GM WORLDWIDE ENGINEERING STANDARDS GMW16449 Copyright 2012 General Motors Company All Rights Reserved September 2012 Page 4 of 6 Appendix A Table A1: Fluid Applicability Per Vehicle Location Fluid/Chemical/ Substance Test Specification/Part Number UnderhoodInteriorExp
29、osed InteriorUnexposed ExteriorChassisTrunkComments GMNA GME LAAM Holden GM Top Engine Cleaner 1052626 b b GM Engine Degreaser Loctite Corp. 82122 b b Electrolyte b Note 1 Commercial Vehicle Cleaning Agent- Interior Formula 409 Fantastik Sonax Car Interior Cleaner b a b b b a Commercial Vehicle Clea
30、ning Agent- Exterior Simple Green Sonax Car Exterior Cleaner b b Grease, Electrical Connector, Lubricant 9985821 b b b b b Note 2 Lubricating Oil (WD40) b b Transmission Fluid 9986153 9986177 9986201 B 040 1068 (Automatic 4 gear) B 040 1073 (Automatic 5 gear) B 040 2030 (Automatic 6 gear) B 040 2071
31、 (Manual) 9986153 Manual HN2464 Auto B 040 2071 Manual c c Undercoating Material (Ziebart) b b Brake Fluid 9986121 (DOT3) 9986298 (modified DOT 3) B 040 0010 B 040 1076 (Factory Fill) GMW3356 92191531 b b Coca-Cola Classic d c c Note 3 Copyright General Motors Company Provided by IHS under license w
32、ith General Motors CompanyNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-GM WORLDWIDE ENGINEERING STANDARDS GMW16449 Copyright 2012 General Motors Company All Rights Reserved September 2012 Page 5 of 6 Fluid/Chemical/ Substance Test Specification/Part Number Under
33、hoodInteriorExposed InteriorUnexposed ExteriorChassisTrunkComments GMNA GME LAAM Holden Coffee (10 oz, 0.5 oz Cream, 2 tsp. Sugar) d c c Note 3 Engine Coolant, 50% (DexCool) Water Mixture 9985809 c c Engine Oils 9986232 c c Gasoline 9986086 c c Diesel Fuel GMPT-5-019-A c c B20 Biodiesel GMPT-5-005-A
34、 c c Armor All b a b Hand Lotion (Vaseline Intensive Care) b Note 4 Hand Cleaner (Goop) b Note 4 Power Steering Fluid 9985010 (Hydraulic), 9986117 (electric/hydraulic) c c Sun Tan Lotion/Insect Repellent DEET Resistance GMW14867, GMW14445 Z Note 5 Commercial Car Shampoo 1% solution of detergent to 9
35、981285, GM Goodwrench 12378401 2% solution of Sonax Gloss Shampoo Concentrate c c c Windshield Washer Solvent 9986196, 9985129, GM Goodwrench 1051515 B 040 1370 (factory fill), B 040 1990 (service), B 040 0218, 9274023 HN1992 b c b Ammonia Based Cleaner (Windex or Equivalent) Windex Sonax Glass Clea
36、r Glass Cleaner a b b b a Copyright General Motors Company Provided by IHS under license with General Motors CompanyNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-GM WORLDWIDE ENGINEERING STANDARDS GMW16449 Copyright 2012 General Motors Company All Rights Reserved
37、 September 2012 Page 6 of 6 Fluid/Chemical/ Substance Test Specification/Part Number UnderhoodInteriorExposed InteriorUnexposed ExteriorChassisTrunkComments GMNA GME LAAM Holden Perspiration Resistance GMW14867/ GMW14334 Code C Z Note 6 Commercial Tire Cleaner b Commercial Chrome Cleaner GM Goodwren
38、ch 1050173 Sonax Chrome and Alupaste a b Commercial Tar and Road Oil Cleaner GM Goodwrench 1050172 Sonax Tar Remover a b Transit Coating/Protective Wax GMW14334 Rating 4 Z Remover for Transit Coating/Protective Wax GMW14334 Rating 4 Z Mirror Cleaner/Polish (i.e., Magic Mirror Cleaner) GMW14334 Ratin
39、g 4 Z Environmental Stress Crack Resistance GMW14444 Z Z Z Z Z Z Note 7 Constant Velocity Joint Grease 9985998 b b Note 8 Note 1: If proximity of part can come in contact with production intent battery electrolyte. Note 2: Use production intent grease for component or of interfacing part(s). Note 3:
40、 Alternative is to use sugar water functional impairment test as dictated in CTS. Note 4: All parts in contact with customer hands, e.g., Steering Wheel, Grip Handle, Door Handle. Note 5: For first surface interior painted parts only. Certification may be accomplished at part or material level. Othe
41、rwise test part or plaque if data not available. Note 6: For first surface interior painted parts and parts in contact with customer hands, e.g., Steering Wheel, Grip Handle, Door Handle. Certification may be accomplished at part or material level. Otherwise test part or plaque if data not available
42、. Note 7: All amorphous injection molded plastic parts (ABS, ABS+PC, ABS+PA6, PC, PMMA, etc.) that have migratory materials within 5 mm of design tolerance of final assembly or contact throughout processing. Note 8: Wheel components only. Copyright General Motors Company Provided by IHS under license with General Motors CompanyNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
