GMNA-GMP.PVC.093-2005.pdf
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1、 ENGINEERING STANDARDS Material Specification Plastics GMP.PVC.093 PVC, White Stain Resistant or Integral Colored, Weatherable, Extrusion Molding Compound GMN7838 Copyright 2005 General Motors Corporation All Rights Reserved November 2005 Originating Department: North American Engineering Standards
2、Page 1 of 3 1 Scope This specification covers the properties of an integrally colored, weatherable, and stain resistant when required, PVC (Poly Vinyl Chloride) extrusion molding compound. These materials can be used for mold-in-color white and light colors or other integral colored PVC. White and s
3、ome light colors require added stain resistance. All versions, including added stain resistance, will be defined by their ability to meet the test requirements of this specification. They are identified by “TYPE” and “Grade” to distinguish the Shore Hardness and added stain resistance respectively.
4、1.1 Material Description. The following types, I,II,III, and grades, A or B, indicate the Shore Hardness of the material or increased Stain Resistance for White or light colors. If no type or grade is indicated on the part drawing, it shall be understood to be Type IA, 60 5 Shore D, stain resistant
5、for White or light colors. Type I 60 5 Shore D Type II 50 5 Shore D Type III 40 5 Shore D Grade A Stain Resistant for light colors Grade B Integral colored, additional stain resistance not required to meet requirements e.g., GMP.PVC.093 Type IIB indicates 50 5 Shore D, Integral colored, additional s
6、tain resistance not required to meet requirements. 1.3 Symbol. The material abbreviation according to ISO 11469 is “PVC”. 1.4 Typical Application. Typical applications include the following: Mold-In-Color body side, windshield reveal & roof ditch moldings. 2 References Note: Only the latest approved
7、 standards are applicable unless otherwise specified. 2.1 External Standards/Specifications. ISO 37 ISO 11469 ISO 176 SAE J1545 ISO 868 SAE J1960 ISO 1183 SAE J1976 ISO 3451-1 2.2 GM Standards/Specifications. GM9303P GM9689P GM9328P GMW3001 GM9329P GMW3221 GM9503P GMW3059 3 Requirements 3.1 Sample C
8、onditioning. All samples are to be conditioned prior to each requirement test to GMW3221, Code A. 3.2 Requirements on Delivery. Tests shall be conducted using the latest issue of the test methods indicated. Suitable precautions should be taken to ensure that applicable safe limits are not exceeded w
9、hen conducting test procedures, processes, and/or handling the materials required by this specification. Tests shall be conducted 40 h minimum after molding and immediately following a conditioning period of 24 h minimum at 22 3C and 50 5% RH unless otherwise specified. All tests shall be performed
10、on unannealed specimens. In addition, tests specified at temperatures below or above 22 3C shall be conducted at the specified temperature using specimens conditioned at the specified temperature for 4 h minimum. Test specimens shall be 1.8 0.2 mm thick unless otherwise specified. Property values ar
11、e the average of an equal number of specimens cut from both the longitudinal and transverse plaque directions. 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 Copyright General Motors North America Provide
12、d by IHS under license with GM Licensee=IHS Employees/1111111001, User=Japan, IHS Not for Resale, 06/23/2008 23:29:44 MDTNo reproduction or networking permitted without license from IHS -,-,- GMP.PVC.093 GM ENGINEERING STANDARDS Copyright 2005 General Motors Corporation All Rights Reserved Page 2 of
13、 3 November 2005 or black are not available. For colored grades where other pigment and additive systems (e.g., stabilizer) are used, the impact values shall not decrease more than 10% from the specified minimum value. 3.2.1 Chemical Requirements. All parts manufactured from molding compounds shall
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