1、 WORLDWIDE ENGINEERING STANDARDS Material Specification GMW15800 High Density Polyethylene - Blow Molding Color Concentrate Copyright 2013 General Motors Company All Rights Reserved July 2013 Page 1 of 3 1 Scope 1.1 Material Description. This specification covers the properties of a blow molding col
2、or concentrate consisting of a high density polyethylene (HDPE) carrier resin and carbon black. 1.2 Symbols. The material abbreviation according to ISO 11469 is PE. 1.3 Typical Applications. Typical applications include colorant for multilayer plastic fuel tank. 2 References Note: Only the latest ap
3、proved standards are applicable unless otherwise specified. 2.1 External Standards/Specifications. ISO 527-1/2 ISO 1183 ISO 6964 ISO 11469 ISO 1133 ISO 1872-2 2.2 GM Standards/Specifications. GMW3013 GMW3059 GMW3221 2.3 Additional References. TMC003 Material Safety Data Sheet guidance documents (ava
4、ilable at ). 3 Requirements Materials approved to this specification shall meet the requirements of GMW3013, General Requirements for Handling of Technical Terms of Delivery for Plastics. 3.1 Requirements on Test Specimens. Unless otherwise specified, compression molding of test specimens shall be a
5、ccomplished per ISO 1872-2. Test methods and specimen dimensions are also to be in accordance with ISO 1872-2. 3.1.1 All tests shall be performed on specimen for 40 h minimum after molding and immediately following a conditioning period of 24 h minimum in a controlled atmosphere per GMW3221, Code A,
6、 unless otherwise specified. All tests shall be performed on unannealed specimens. 3.1.2 The values specified in Table 1 shall be met by test specimens in natural. The values in Table 2 shall be met by test specimens in molded, in color. 3.1.3 Chemical Requirements. All parts manufactured from moldi
7、ng compounds shall be resistant to the media they contact at their place of use. 3.2 Requirements on Delivery. Important physical, mechanical and thermal properties that characterize the material are summarized in Tables 1 and 2. Note: For each product, the requirements to Table 2 shall be documente
8、d by Certification Statement according to GMW3013. 3.3 Compound Properties. See Tables 1 and 2. The following are also required for full specification approval. The minimum number of lots per test required is one in natural: Differential Scanning Calorimeter Curve and Infrared Spectroscopy Curve. Se
9、e GMW3013 for the test procedures. 3.4 Performance Requirements. Performance requirements, e.g., flammability, fogging or resistance to odor, shall be specified on part drawings or in component specifications. Copyright General Motors Company Provided by IHS under license with General Motors Company
10、Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-GM WORLDWIDE ENGINEERING STANDARDS GMW15800 Copyright 2013 General Motors Company All Rights Reserved July 2013 Page 2 of 3 4 Manufacturing Process Not applicable. 5 Rules and Regulations 5.1 Legal Regulations. All ma
11、terials 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 Inspection and Rejection. Samples of components or materials r
12、eleased 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 must be received for any changes, e.g., properties, man
13、ufacturing 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, without solicitation, and to include documentation of
14、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 individual cases, a shorter test can be agreed to between
15、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 the Material Safety Data Sheet/Safety Data Sheet must
16、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 MSDS/SDS submissions must be in compliance with specific country General Motors TMC003 Material Safety D
17、ata 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 specification must be approved by General Motors. A
18、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 Production Part Approval Process (PPAP) material appro
19、val. If the decision is made to use a not yet approved material, contact GM 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 Notes 7.1 Glossary. MATSPC: Global repository of G
20、M approved materials for corresponding GM Engineering Standards. 7.2 Acronyms, Abbreviations, and Symbols. GHS Globally Harmonized System of Classification and Labeling of Chemicals HDPE High Density Polyethylene MFR Melt Flow Rate MSDS Material Safety Data Sheet P Plastics PE Polyethylene PPAP Prod
21、uction Part Approval Process SDS Safety Data Sheet 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 GMW15800 Copyright 2013 General Motors Co
22、mpany All Rights Reserved July 2013 Page 3 of 3 8 Coding System This standard shall be referenced in other documents, drawings, etc., as follows: Material per GMW15800P-PE Where: GMW = GM Worldwide 15800 = Sequential number P = Plastics PE = Polyethylene Table 1: Compound Properties (Natural) for Re
23、ference Only Note 1 Property Standard Note 2 Units Typical Value Melt Flow Rate (MFR) 190/21.6 190 C with 2.16 kg weight per ISO 1133 g/10 minutes 8.5 3 Density ISO 1183/A g/cm3 0.945 0.03 Tensile Stress Yield ISO 527-1/2 MPa 22 Elongation Break ISO 527-1/2 % 800 Environmental Stress Crack Resistanc
24、e ISO 1872-2, Table 4, Condition C, F50, 100% Igepal solution, a non-ionic surfactant h 5000 Note 1: Data for reference only. Note 2: Standard test specimen and test setup should follow GMW3013. Table 2: Compound Properties (Integrally Colored) Property Standard Note 1 Units T1 Mean/Range Melt Flow
25、Rate (MFR) 190/21.6 190 C with 2.16 kg weight per ISO 1133 g/10 minutes 10 3 Density ISO 1183/A g/cm3 1.07 0.03 Carbon Black ISO 6964 % 25 3 Note 1: Standard test specimen and test setup should follow GMW3013. 9 Release and Revisions This standard was originated in January 2008. It was first approve
26、d by the Global Plastics Team in September 2008. It was first published in September 2008. Issue Publication Date Description (Organization) 1 SEP 2008 Initial publication. 2 JUL 2013 Five year refresh of standard. No technical content change. (Plastics 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-,-,-
