1、 WORLDWIDE ENGINEERING STANDARDS Material Specification GMW15059 Particle Foam for Molding Parts Copyright 2012 General Motors Company All Rights Reserved May 2012 Originating Department: North American Engineering Standards Page 1 of 8 1 Scope 1.1 Material Description. Particle foam in three types:
2、 1.1.1 Type 1. Polyethylene particle foam, density of foam 55 kg/m 10 kg/m. 1.1.2 Type 2. Polypropylene particle foam, density of foam 22 kg/m 4 kg/m. 1.1.3 Type 3. Polyethylene particle foam, density of foam 25 kg/m 4 kg/m. 1.2 Symbols. Type 1: PE-EPP-EPE-E 1.3 Typical Applications. As-molded part
3、for toolbox fitted in the spare wheel hollow. 2 References Note: Only the latest approved standards are applicable unless otherwise specified. 2.1 External Standards/Specifications. CMVSS 302 FMVSS 302 ISO 845 ISO 1926 2.2 GM Standards/Specifications. GMW3059 GMW3232 GMW3259 GMW15634 GMW3205 GMW3235
4、 GMW14363 2.3 Additional References. TMC003 Material Safety Data Sheet guidance documents (available at ). 3 Requirements Unless otherwise stated, the test shall be applicable for all types. 3.1 Required Property Values for Documentation. All requirements listed in Table 1 shall be fulfilled by the
5、delivered foam and shall be documented by the supplier in a construction data sheet. Documentation of additional properties in this construction data sheet may be required by the approving region. Copyright General Motors Company Provided by IHS under license with General Motors CompanyNot for Resal
6、eNo reproduction or networking permitted without license from IHS-,-,-GM WORLDWIDE ENGINEERING STANDARDS GMW15059 Copyright 2012 General Motors Company All Rights Reserved May 2012 Page 2 of 8 Table 1: Required Property Values for Documentation Property Test Method Specified Value Type 1 Type 2 Type
7、 3 Density ISO 845 55 kg/m3 10 kg/m 22 kg/m3 4 kg/m 25 kg/m3 4 kg/m Flexural Strength The molded part is placed on two bearings, each 100 mm width, and then pressed manually through the bearings. The test shall be carried out at +23 C 5 C. See Appendix A. No break Humidity Resistance Storage of the
8、molded part or suitable section for 168 h 2 h at +40 C 3 C and 93% 5% RH. The test shall be carried out in as-received condition without sample conditioning. No change which could adversely affect serviceability. No objectionable odor may occur. Indentation Hardness GMW14363-A2 Test in as-received c
9、ondition. See Figure A2 for measuring point. 5 mm 2 mm Tensile Strength ISO 1926. Speed 500 mm/minute 120 kPa 80 kPa 200 kPa Fogging/Volatility of Organic Constituents GMW3235 Method B-Y1-T1 (gravimetric, 1 day pre-drying, +90 C test temperature). 2 mg Resistance to Odor GMW3205 Test Piece Volume: T
10、est Container Volume = 1: 500. Mildew GMW3259 No mildew - only for the foams with natural content Dry condition (Code B) Rating 6 minimum Volatile and Semi-Volatile Interior Materials Emissions GMW15634 Volatile Organic Compound (VOC) Semi-volatile Organic Compound (SVOC) Report Report Flammability
11、GMW3232 Must comply to CMVSS 302 and FMVSS 302 RH = Relative Humidity 4 Manufacturing Process Not applicable. 5 Rules and Regulations 5.1 Legal Regulations. All materials must satisfy applicable laws, rules, regulations and recommendations valid in the country of usage. Copyright General Motors Comp
12、any Provided by IHS under license with General Motors CompanyNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-GM WORLDWIDE ENGINEERING STANDARDS GMW15059 Copyright 2012 General Motors Company All Rights Reserved May 2012 Page 3 of 8 5.2 Language. In the event of con
13、flict between the English and domestic language, the English language shall take precedence. 5.3 Inspection 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 th
14、e responsible Engineering department prior to commencement of delivery of bulk supplies. A new approval must 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 releas
15、e must be completed. It is the responsibility of the supplier to inform the customer in a timely manner, without 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
16、and documented by the supplier prior to commencement of delivery of non-conforming bulk supplies. In individual cases, a shorter test can be agreed to between the responsible Engineering department and the supplier. 5.4 Initial Source Approval. No shipments shall be made by any supplier until repres
17、entative initial production samples have been approved by the appropriate Materials Engineering department(s) as meeting the requirements of this specification. 5.5 Material Safety Data Sheets/Safety Data Sheets (MSDS/SDS). For new product submissions, or when a change in chemical composition of an
18、existing product has occurred, a complete copy of the 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 requirements. In addition, product
19、MSDS/SDS submissions must be in compliance with specific country General Motors TMC003 Material Safety Data Sheet/Safety Data Sheet guidance documents where available. 5.6 All materials supplied to this standard must comply with the requirements of GMW3059, Restricted and Reportable Substances for P
20、arts. 6 Approved Sources Engineering qualifications of an approved source are required for this standard. Only sources listed in the GM Materials File (MATSPC) under this standard number have been qualified by Engineering as meeting the requirements of this standard. For other GM locations, the resp
21、onsible Engineering group should be contacted to obtain the approved source in that individual country. 7 Notes 7.1 Glossary. MATSPC: Global repository of GM approved materials for corresponding GM Engineering Standards. 7.2 Acronyms, Abbreviations, and Symbols. GHS Globally Harmonized System of Cla
22、ssification and Labeling of Chemicals MSDS Material Safety Data Sheet RH Relative Humidity SDS Safety Data Sheet SVOC Semi-volatile Organic Compound VOC Volatile Organic Compound 8 Coding System This standard shall be referenced in other documents, drawings, etc., as follows: Material per GMW15059 C
23、opyright 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 GMW15059 Copyright 2012 General Motors Company All Rights Reserved May 2012 Page 4 of 8 9 Rel
24、ease and Revisions This standard was originated in February 2006. It was first approved by the Global Foam Team in May 2006. It was first published in July 2007. Issue Publication Date Description (Organization) 1 JUL 2007 Initial publication. 2 MAY 2012 Five year refresh of standard. Update of refe
25、renced test methods, ISO 1926 and GMW15634. (Textiles and Trim Materials GSSLT) 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 GMW15059 Cop
26、yright 2012 General Motors Company All Rights Reserved May 2012 Page 5 of 8 Appendix A Figure A1: Test Sketch for Flexural Strength Testing Figure A2: Measuring Point for Indentations Hardness Copyright General Motors Company Provided by IHS under license with General Motors CompanyNot for ResaleNo
27、reproduction or networking permitted without license from IHS-,-,-GM WORLDWIDE ENGINEERING STANDARDS GMW15059 Copyright 2012 General Motors Company All Rights Reserved May 2012 Page 6 of 8 Appendix B: Foam Certification Data Form GMW15059 Type: Date: Supplier: Vendor ID/PC No: Supplier Address: Form
28、ulation Name: Formulation No: Manufacturing Location: Country: Foam Chemistry Laboratory: Application: Submit Specimen GMW15059 Type: Specification Method Unit Specified Value Results Meets Does NOT Meet Comments Table 1 Fogging/Volatility of Organic Constituents GMW3235 Method B-Y1-T1 (gravimetric,
29、 1 day predrying, +90 C test temperature) (mg) 2 mg Table 1 Flammability GMW3232 - Must comply to CMVSS/ FMVSS 302 Table 1 Interior VOC and SVOC GMW15634 VOC Report Copyright General Motors Company Provided by IHS under license with General Motors CompanyNot for ResaleNo reproduction or networking p
30、ermitted without license from IHS-,-,-GM WORLDWIDE ENGINEERING STANDARDS GMW15059 Copyright 2012 General Motors Company All Rights Reserved May 2012 Page 7 of 8 GMW15059 Type Specification Method Unit Specified Value Results Submit Specimen Meets Does NOT Meet Comments Table 1 Resistance to Odor GMW
31、3205 Table 1 Wet condition (Code A) (Rating) 6 Table 1 Dry condition (Code B (Rating) 6 Table 1 Mildew GMW3259 - No mildew. Table 1 Hardness No. GMW14363-A2 5 mm 2 mm Table 1 Tensile Strength ISO 1926 (kPa) Table 1 Humidity Resistance Table 1 Flexural Strength Supplier Certification We certify that
32、the foam Type indicated above will be in compliance with the requirements of GMW15059. Supplier Quality Manager (Date, Printed Name, Signature, Seal) Copyright General Motors Company Provided by IHS under license with General Motors CompanyNot for ResaleNo reproduction or networking permitted withou
33、t license from IHS-,-,-GM WORLDWIDE ENGINEERING STANDARDS GMW15059 Copyright 2012 General Motors Company All Rights Reserved May 2012 Page 8 of 8 GM Materials Engineering Approval GM Materials Engineer (Date, Printed Name, Signature) Copyright General Motors Company Provided by IHS under license with General Motors CompanyNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
