ANSI UL 746D pdf free download
ANSI UL 746D pdf free download.STANDARD FOR SAFETY Polymeric Materials – Fabricated Parts.
2.7 POLYMERIC MATERIAL – A compound formed by chemical reaction that results in large molecules whose molecular weight is a multiple of that of the original substance (monomer). Includes thermoplastic, thermoset, and elastomeric materials. 2.8 RECONSTITUTED PLASTIC – A material made by chemical or thermal breakdown of plastic waste into components followed by their conversion into a final composition by chemical action. 2.9 RECYCLED PLASTIC BASE COLOR – The color of the recycled resin arising from pigments and dyes that are in the as received resin and prior to any further addition of pigments or dyes. For example, the base color of a recycled plastics resin can be gray or black with the actual color depending on the distribution of pigments and dyes given the multiple plastics being recycled in the recycled plastics stream. 2.10 RECYCLED PLASTICS – Those plastics composed of post-consumer material or recovered material only, or both, that may or may not have been subjected to additional processing steps of the types used to make products such as recycled-regrind, or reprocessed or reconstituted plastics. 2.11 RECYCLED PLASTICS STREAM – Plastic pellets incorporating one or more grades of the plastic material that has been recovered from post-consumer or post-industrial sources. 2.12 REGRIND – A noncontaminated product or scrap such as sprues and runners that have been reclaimed by shredding and granulating for use in-house. 2.13 REPROCESSED PLASTIC – Regrind or recycled-regrind material that has been processed for reuse by extruding and forming into pellets or by other appropriate treatment.
3 References 3.1 General 3.1.1 Any undated reference to a code or standard appearing in the requirements of this Standard shall be interpreted as referring to the latest edition of that code or standard. 3.2 Related Standards 3.2.1 The requirements in Standard Tests for Flammability of Plastic Materials for Parts in Devices and Appliances, UL 94, covers flammability of polymeric materials used for parts in devices and appliances. The Standard for Polymeric Materials – Short Term Property Evaluations, UL 746A, contains short-term test procedures to be used for the evaluation of materials used for parts intended for specific applications in electrical end products. The Standard for Polymeric Materials – Long Term Property Evaluations, UL 746B，contains long-term test procedures to be used for the evaluation of materials used for parts intended for specific applications in end products. Test procedures are provided in the Standard for Polymeric Materials – Use in Electrical Equipment Evaluations, UL 746C, for the evaluation of polymeric materials in specific applications in end products. The test procedures include reference to the data obtained from the standard property tests in UL 746A, as well as other practical means of evaluation.ANSI UL 746D pdf download.
