本标准（STD）旨在规定与任何流体介质接触的表面的清洁度水平和最低污染控制要求（处理、搬运、保护和测试/检查）。这些要求与关键表面有关吗？用于NASA火箭推进试验项目的零件、项目、组件、设备、组件、子系统和系统。

The purpose of this standard (STD) is to specify the cleanliness levels and the minimum contamination control requirements (processing, handling, protection, and test/inspection) for surfaces that come in contact with any fluid medium. These requirements pertain to the critical surfaces? of parts, items, components, equipment, assemblies, subsystems, and systems used for NASA rocket propulsion test program.