1、 WORLDWIDE ENGINEERING STANDARDS Material Specification GMW15412 Rigid PUR Foam Reinforced with Glass Fibers for Cover Seat Back Copyright 2013 General Motors Company All Rights Reserved June 2013 Page 1 of 8 1 Scope 1.1 Material Description. Rigid polyurethane (PUR) foam based on polyether reinforc
2、ed with long glass fibers. The foam is molded into a part where the appearance side is laminated according to drawing specification. 1.2 Symbols. Not applicable. 1.3 Typical Applications. Foam for molding of foil or upholstery laminated parts, e.g., cover back front seat. 2 References Note: Only the
3、 latest approved standards are applicable unless otherwise specified. 2.1 External Standards/Specifications. CMVSS 302 FMVSS 302 ISO 105-A02 ISO 3451 2.2 GM Standards/Specifications. GMW3059 GMW3232 GMW6992 GMW14363 GMW3182 GMW3235 GMW14093 GMW15634 GMW3205 GMW3259 GMW14131 GMW15635 GMW3221 GMW4659
4、GMW14357 GMW16853 2.3 Additional References. TMC003 Material Safety Data Sheet guidance documents (available at ). 3 Requirements 3.1 General. For the finished part, only foam flocks of nearly equal hardness may be applied. The origin of the foam wastes shall be noted on the Foam Certification Data
5、Form (see Appendix A). 3.2 Test Piece and Number. If it is not possible to take test pieces from the molded part, then suitable plates shall be manufactured for the test (taken from equal manufacturing process, recipe of foam and density). The test piece shall be taken without skin and in rising dir
6、ection of foam. 3.3 Conditioning. Immediately prior to test, all test pieces shall be pre-dried at +70 C 3 C and conditioned. The pre-drying period shall be 16 h for tests conducted after humidity aging to GMW14357 and shall be 3 h for other tests. Following pre-drying, all test pieces shall be cond
7、itioned to GMW3221, Code A. 3.4 Required Performance Values. All requirements listed in Table 1 shall be fulfilled by the delivered foam and shall be documented by the supplier in the Foam Certification Data Form (see Appendix A). 3.5 Basic Foam Physical Properties. All requirements listed in Table
8、2 shall be fulfilled by the delivered foam and shall be documented by the supplier in the Foam Certification Data Form (see Appendix A). Values indicated with “TBD” (“to be determined”) shall be documented and may be noted on the drawing/in the math data for production quality check purposes. Values
9、 indicated with “N/A” (“not applicable”) are not required. Documentation of additional properties may be required by the approving region. Test Report according to GMW16853 has to be added. 3.6 Molded Part (Assembly) Properties. All requirements listed in Table 3 shall be fulfilled by the molded par
10、t (final laminated assembly) and shall be documented by the supplier in the Foam Certification Data Form (see Appendix A). Values indicated with “TBD” shall be documented and may be noted on the drawing/in the math data for production quality check purposes. Values indicated with “N/A” are not requi
11、red. Documentation of additional properties may be required by the approving region. Test Report according to GMW16853 (Table 4) has to submitted at the time of approval. Copyright General Motors Company Provided by IHS under license with General Motors CompanyNot for ResaleNo reproduction or networ
12、king permitted without license from IHS-,-,-GM WORLDWIDE ENGINEERING STANDARDS GMW15412 Copyright 2013 General Motors Company All Rights Reserved June 2013 Page 2 of 8 3.7 Lamination. The material used for lamination shall meet the relevant GM material specification (see drawing/math data specificat
13、ions). Table 1: Required Performance Values for Documentation Performance Test Method Specified Value Flammability GMW3232 Must comply to CMVSS 302 and FMVSS 302. Emission Testing of Interior Materials (Odor, Fogging, Emissions) GMW16853 See Table 4 Steam Autoclav PUR-Foam-Polyether: 5 h, +120 C 3 C
14、 GMW14357-E No visible degradation, no adverse changes of shape, surface as the physical and chemical properties. Mildew Note 1 GMW3259 No mildew Compatibility Note 2 GMW4659 - Color Stability of the Cover Layer Color Change Shade Change (if cover layer is leather or plastic roll good only) Visual e
15、valuation to GMW6992: No color change, slight darken permissible. Grayscale to ISO 105-A02 Rating 3 Other changes No adverse changes of shape, surface as the physical and chemical properties. Note 1: Required only if natural fibers are present in the construction. Note 2: Foam shall meet compatibili
16、ty in the production intended composite. The test pieces shall be sewn or welded (dependent on use), using production techniques, to all possible combinations of composite materials taken at the same time from production to form a test pack. Note: For any changes in the quality of any of the composi
17、te materials, compatibility tests shall be repeated. At the discretion of the approving GM Engineer, foam material may be tested to standard composite materials for initial foam approval, e.g., a standard vinyl. Nevertheless, final foam approval shall be achieved in the production intended composite
18、. Table 2: Basic Foam Physical Properties Property Test Method Unit Specified Value Ash (Long Glass Fiber Content) ISO 3451 +950 C % by mass 20 Mass per Unit Area GMW3182 g/m 800 Impact Resistance GMW14093 -C-3 510 g 1 g Steel Ball, -30 C 3 C J 2.5 Copyright General Motors Company Provided by IHS un
19、der license with General Motors CompanyNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-GM WORLDWIDE ENGINEERING STANDARDS GMW15412 Copyright 2013 General Motors Company All Rights Reserved June 2013 Page 3 of 8 Table 3: Molded Part (Assembly) Properties Property Te
20、st Method Unit Specified Value Temperature Resistance Storage of molded part for: 1 h 0.5 h at +100 C 3 C 24 h 1 h at +80 C 3 C 24 h 1 h at -30 C 3 C - No visible degradation, no adverse changes of shape, surface as the physical and chemical properties. Indentation Hardness GMW14363 Deformation at C
21、enter of Surface Note 1 mm TBD Deformation at Bolster Note 2 mm TBD Note 1: Deformation point for “Center of Surface” value (see Point 1 of Figure 1) shall be identified on the molded part drawing. Note 2: Deformation point for “Bolster” value (see Point 2 of Figure 1) shall be identified on the mol
22、ded part drawing. Figure 1: Indentation Hardness Test Points Table 4: Test Report According to GMW16853 Note: Enter only test values that are applicable for the material/part. If a test or a test option is not applicable, mark the result cell with “N/A”. General Information Model Year/Vehicle/Projec
23、t Number Assembly/Part Name: Assembly/Part number: Assembly/Part dimension: Weight (for cut goods weight of 1 m): Material/Composite Raw Material Supplier(s) and trade Name(s) of all used materials: Vendor Name (with Address) also Manufacturer Name and Address (if different) 21Copyright General Moto
24、rs Company Provided by IHS under license with General Motors CompanyNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-GM WORLDWIDE ENGINEERING STANDARDS GMW15412 Copyright 2013 General Motors Company All Rights Reserved June 2013 Page 4 of 8 General Information Manuf
25、acturing date: Date of sampling Date of Packing/wrapping Test lab (when external GM, also provide address and contact person) Test Results GMW3205 Odor Number of samples Weight to test container Ratio for non-weighable parts Specification Value Measured Value Result Method A 6.0 Result Method B 6.0
26、Result Method C 6.0 Comments/Remarks: GMW3235 Fogging Number of samples: Instrumentation used: Test Procedure Method A, reflection Method B, gravimetric Specification Value Measured Value Result Method A, (in percent (%) reflection Result Method B, (in mg) Comments/Remarks GMW15634 Volatile Organic
27、Compound (VOC)/Semi-volatile Organic Compound (SVOC) Emissions Note: Also the complete list of emitted single substances and chromatograms shall be included to the report. For template see GMW15634. Number of samples Weight to test container Specification Value Measured Value Result VOC (in mg/kg) R
28、esult SVOC (in mg/kg) Comments/Remarks 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 GMW15412 Copyright 2013 General Motors Company All Ri
29、ghts Reserved June 2013 Page 5 of 8 General Information GMW15635 Carbonyl Emissions. Note: For applicability, see 3.4.4.1 of GMW16853. Number of samples Weight to test container Water content of the samples Specification Value Measured Value Result Formaldehyde (in mg/kg) Result Acetaldehyde (in mg/
30、kg) Result Acrolein (in mg/kg) Result Aceton (in mg/kg) For information only Sum Value C2-C6 Carbonyls (in mg/kg) 20 Comments/Remarks GMW14131 Test passed Test not applicable GM internal evaluation: OK Not OK GM Representative (regional contact) Location/Date 4 Manufacturing Process Not applicable.
31、5 Rules and Regulations 5.1 Legal Regulations. All materials must satisfy applicable laws, rules, regulations and recommendations valid in the country of usage. 5.2 Language. In the event of conflict between the English and domestic language, the English language shall take precedence. 5.3 Inspectio
32、n and Rejection. Samples of components or materials released to a GM material specification shall be tested for conformity with the requirements of this material specification and approved by the responsible Engineering department prior to commencement of delivery of bulk supplies. A new approval mu
33、st be received for any changes, e.g., properties, manufacturing process, location of manufacture, etc. If not otherwise agreed, all testing and documentation normally required for initial release must be completed. It is the responsibility of the supplier to inform the customer in a timely manner, w
34、ithout solicitation, and to include documentation of all modifications of materials and/or processes and to apply for a new release. If not otherwise agreed, all release tests shall be repeated and documented by the supplier prior to commencement of delivery of non-conforming bulk supplies. In indiv
35、idual cases, a shorter test can be agreed to between the responsible Engineering department and the supplier. 5.4 Material Safety Data Sheets/Safety Data Sheets (MSDS/SDS). For new product submissions, or when a change in chemical composition of an existing product has occurred, a complete copy of t
36、he Material Safety Data Sheet/Safety Data Sheet must be submitted in compliance with the Globally Harmonized System of Classification and Labeling of Chemicals (GHS) requirements or other country-specific MSDS/SDS Copyright General Motors Company Provided by IHS under license with General Motors Com
37、panyNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-GM WORLDWIDE ENGINEERING STANDARDS GMW15412 Copyright 2013 General Motors Company All Rights Reserved June 2013 Page 6 of 8 requirements. In addition, product MSDS/SDS submissions must be in compliance with specif
38、ic country General Motors TMC003 Material Safety Data Sheet/Safety Data Sheet guidance documents where available. 5.5 All materials supplied to this standard must comply with the requirements of GMW3059, Restricted and Reportable Substances for Parts. 6 Approved Sources Materials supplied to this sp
39、ecification must be approved by General Motors. A list of approved materials can be found in MATSPC. This GM Material File is provided to third parties to reduce redundant testing of materials. If approved material already listed is used, the part supplier can use GM Material File reference for Prod
40、uction Part Approval Process (PPAP) material approval. If the decision is made to use a not yet approved material, contact Materials Engineering for details on the approval process. The material approval process must be completed prior to PPAP start date of the part supplied to General Motors. 7 Not
41、es 7.1 Glossary. Not applicable. MATSPC: Global repository of GM approved materials for corresponding GM Engineering Standards. 7.2 Acronyms, Abbreviations, and Symbols. GHS Globally Harmonized System of Classification and Labeling of Chemicals MSDS Material Safety Data Sheet N/A Not Applicable PPAP
42、 Production Part Approval Process PUR Polyurethane SDS Safety Data Sheet SVOC Semi-volatile Organic Compound TBD To be Determined VOC Volatile Organic Compound 8 Coding System This standard shall be referenced in other documents, drawings, etc., as follows: Material per GMW15412 9 Release and Revisi
43、ons This standard was originated in August 2006. It was first approved by the Global Foam Team in October 2006. It was first published in February 2008. Issue Publication Date Description (Organization) 1 FEB 2008 Initial publication. 2 JUN 2013 Five year refresh of standard. Added GMW16853 requirem
44、ents. (Textiles & Trim Materials Global Subsystem Leadership Team) 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 GMW15412 Copyright 2013 G
45、eneral Motors Company All Rights Reserved June 2013 Page 7 of 8 Appendix A Data Sheet A1: Form Certification Data Form S u p p l i e r :S u p p l i e r A d d r e ss:C o u n t r y :A p p l i ca t i o n :G M W 1 5 4 1 2 M E T H O D U N I T S P E C I F I E D V A L U E R E S U L T S M e e t sD o e s N O
46、 T m e e t C O M M E N T ST a b l e 1G M W 1 6 8 5 3T a b l e 1 G M W 3 2 0 5W e t co n d i t i o n ( C o d e A 3 ) R a t i n g 6 D r y co n d i t i o n ( C o d e B 3 ) R a t i n g 6 T a b l e 1 G M W 3 2 3 5 M e t h o d B - Y 1 - T 1 ( g r a v i m e t r i c, 1 day p r e d r y i n g , + 9 0 C t e st
47、 t e m p e r a t u r e ) m g 2 N o d ro p le ts, n o cr y st a l s a r e a cce p l a b l e u p o n v i su a l e x a m i n a t i o n T a b l e 1 G M W 1 5 6 3 4V O C g / g R e p o r t S V O C g / g R e p o r t T a b l e 1A l d e h y d e s/ K e t o n e s G M W 1 5 6 3 5F o r m a l d e h y d e m g / kg
48、 8 A ce t a l d e h y d e m g / kg 8 A cr o l e i n m g / kg 8 S u m C 2 t o C 6 C a r b o n y l s m g / kg 20 T a b l e 1 G M W 3 2 3 2 - M u st co m p l y t o F M V S S 3 0 2 T a b l e 1P U R - F o a m - P o l y e t h e r : 5 h, ( + 1 2 0 3 )CG M W 1 4 3 5 7 - E- T a b l e 1 G M W 3 2 5 9 - N o m i l d e w . T a b l e 1 G M W 4 6 5 9 -C o l o u r S t a b i l i t y o f t h e co v e r L a y e rC o l o r C h a n g eS h a d e C h a n g e ( i f co v e r l a y e r isl e a t h e r o r p l a st i c r o l l g o o d o n l y )V i
