本文件描述了一种定义挤出基增材制造（AM）工艺中所用塑料材料要求的方法。材料包括适合加工成零件的未填充、填充和增强塑料材料。这些材料还可含有特殊添加剂（如阻燃剂、稳定剂等）。工艺包括所有基于材料挤压的AM工艺。 本文件适用于材料、原料、塑料零件或三者的任何组合的制造商，使用基于AM的挤压材料。 注:在某些情况下，材料制造商也可以是原料制造商。在其他情况下，材料制造商可以向原料制造商（例如:将颗粒转化为长丝）供应材料（例如:颗粒）。 本文件并非旨在解决与其使用相关的所有安全问题（如有）。 本标准的使用者有责任建立适当的安全、健康和环境实践，并在使用前确定监管限制的适用性。

This document describes a method for defining requirements for plastic materials used in extrusion-based additive manufacturing (AM) processes. Materials include unfilled, filled, and reinforced plastic materials suitable for processing into parts. These materials can also contain special additives (e.g. flame retardants, stabilizers, etc.). Processes include all material extrusion-based AM processes. This document is intended for use by manufacturers of materials, feedstocks, plastic parts or any combination of the three using material extrusion-based AM. NOTE In some cases, material manufacturers can also be feedstock manufacturers. In other cases, a material manufacturer can supply materials (example: pellets) to a feedstock manufacturer (example: converter of pellets into filaments). This document 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, and environmental practices and determine the applicability of regulatory limitations prior to use.