Over deze norm
1.1 This classification system covers polyphthalamide materials suitable for injection molding.
1.2 The properties included in this classification system are those required to identify the compositions covered. Other requirements necessary to identify particular characteristics important to specialized applications are to be specified by using suffixes as given in Section . See Guide .
1.3 This classification system allows for the use of recycled materials provided that all specification requirements are met.
1.4 This classification system is intended to be a means of calling out plastics materials used in the fabrication of end items or parts. It is not intended for the selection of materials. Material selection should be made by those having expertise in the plastics field only after careful consideration of the design and the performance required of the part, the environment to which it will be exposed, the fabrication process to be employed, the costs involved, and the inherent properties of the material other than those covered by this classification system.
1.5 The values stated in SI units are to be regarded as the standard (see ). The values given in parentheses are for information only.
1.6 The following precautionary caveat pertains only to the test methods portion, Section , of this classification system: This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. Specific precautionary statements are given in .
Note 1: There is no known ISO equivalent to this standard.
|Engelse titel||Standard Classification System and Basis for Specification for Polyphthalamide (PPA) Injection Molding Materials|