本文件规定了通过激光粉末床熔合（也称为激光烧结）制备热塑性材料试样时应遵循的一般原则。激光烧结工艺用于制备层层叠叠的试样，其中热能选择性地熔合粉末层的区域。本文件为建立可重复的烧结条件提供了依据。其目的是促进描述主要工艺参数的一致性，确定烧结工艺的方向，并建立报告烧结条件的统一实践。 对于所使用的每种材料，可重复制备试样所需的特殊条件将有所不同，从而产生可比结果。这些条件应由相关方商定。

This document specifies the general principles to be followed when test specimens of thermoplastic materials are prepared by laser-based powder bed fusion (PBF-LB/P), which is commonly known as laser sintering. The (PBF-LB/P) process is used to prepare test specimens layer upon layer in which thermal energy selectively fuses regions of a powder bed. This document provides a basis for establishing reproducible and reportable sintering conditions. Its purpose is to promote uniformity in describing the main process parameters, build orientation of the sintering process and also to establish uniform practice in reporting sintering conditions. This document does not specify the test procedure itself.