GMNA-GMP.PP.113-2003.pdf
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1、 ENGINEERING STANDARDS Material Specification Plastics GMP.PP.113 Polypropylene (PP) Phosphorescent, ISO Tests 1 Scope This specification covers the properties of a phosphorescent polypropylene. 1.1 Symbol. The material abbreviation accord- ing to ISO 11469 is PP. 1.2 Typical Application. Typical ap
2、plications include the following: trunk release handles. 2 References Note: Only the latest approved standards are applicable unless otherwise specified. 2.1 External Standards/Specifications. ISO 75 ISO 178 ISO 180/A ISO 294 ISO 527-1/2 ISO 1183 ISO 1873-2 ISO 11469 2.2 GM Standards/Specifications.
3、 GM9538P GMW3001 GMW3059 GMW3221 2.3 Additional References. MIL-L-3891B 3 Requirements 3.1 Requirements on Delivery. Important physical, mechanical and thermal properties that characterize the material are summarized in charts. The color shall be specified on drawings, in material specifications and
4、 otherwise. Unless otherwise specified, injection molding of test specimens shall be accomplished per ISO 294 with the conditions for injection molding from ISO 1873-2. All test specimens shall be brought to equilib- rium in standard conditions for temperature and moisture and tested in that state a
5、s defined in GMW3221 Code A, unless the test method indi- cates that standard conditioning is not required. Condition specimens for a minimum of 24 h prior to testing or until moisture equilibrium is reached. If specimens are tested outside the conditioned environment, they shall be tested within 10
6、 minutes of removal. The minimum values specified in the property tables must be met by test specimens in natural, black, or in a standard sampled color if natural or black are not available. For colored grades where other pigment and additive systems (e.g. stabilizer) are used, the impact values sh
7、all not decrease more than 10% from the specified minimum value. Copyright 2003 General Motors Corporation All Rights Reserved October 2003 Originating Department: North American Engineering Standards Page 1 of 2 Copyright General Motors North America Provided by IHS under license with GM Licensee=I
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