1.1本规程概述了辐射器安装质量计划，以及辐射器运行质量和性能质量评估期间应遵循的剂量学程序。还提供了血液制品（血液和血液成分）常规辐射处理的程序。如果遵循这些程序，这些程序将有助于确保暴露于伽马辐射或X辐射（韧致辐射）的血液制品将获得特定范围的吸收剂量。 1.2本规程涵盖了使用放射性核素（如137Cs和60Co）或X射线（韧致辐射）的自给式辐照器（独立式辐照器）对血液制品进行辐照的剂量测定。血液辐照的吸收剂量范围通常为15 Gy至50 Gy。 1.3用于血液辐照的X射线的光子能量范围通常为40千电子伏至300千电子伏。 1.4本规程还包括使用辐射敏感指示剂对产品进行辐照的视觉和定性指示（见ISO/ASTM指南51539）。 1.5 ISO 51939:2017是一套标准之一，该标准提供了在辐射处理中正确实施剂量测定的建议，并描述了实现符合ISO/ASTM规程52628中血液辐射剂量测定要求的方法。本标准将与ISO/ASTM 52628规程一起阅读。 1.6 ISO 51939:2017无意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- 制定安全和健康实践，并在使用前确定适用性或监管限制。

1.1 This practice outlines the irradiator installation quali？-cation program and the dosimetric procedures to be followed during operational quali？cation and performance quali？cation of the irradiator. Procedures for the routine radiation process-ing of blood product (blood and blood components) are also given. If followed, these procedures will help ensure that blood product exposed to gamma radiation or X-radiation (bremsstrahlung) will receive absorbed doses with a speci？ed range. 1.2 This practice covers dosimetry for the irradiation of blood product for self-contained irradiators (free-standing irradiators) utilizing radionuclides such as 137Cs and 60Co, or X-radiation (bremsstrahlung). The absorbed dose range for blood irradiation is typically 15 Gy to 50 Gy. 1.3 The photon energy range of X-radiation used for blood irradiation is typically from 40 keV to 300 keV. 1.4 This practice also covers the use of radiation-sensitive indicators for the visual and qualitative indication that the product has been irradiated (see ISO/ASTM Guide 51539). 1.5 ISO 51939:2017 is one of a set of standards that provides recommendations for properly implementing dosimetry in radiation processing and describes a means of achieving compliance with the requirements of ISO/ASTM Practice 52628 for dosimetry performed for blood irradiation. It is intended to be read in conjunction with ISO/ASTM Practice 52628. 1.6 ISO 51939:2017 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 appro-priate safety and health practices and to determine the applicability or regulatory limitations prior to use.