1.1这是一种使用聚甲基丙烯酸甲酯（PMMA）剂量测定系统测量光子或电子辐照材料的吸收剂量的做法，即对水的吸收剂量。PMMA剂量测定系统通常用作常规剂量测定系统。 1.2根据影响量的复杂影响，PMMA剂量计被归类为II型剂量计（见ISO/ASTM规程52628）。 1.3本文件是一套标准之一，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PMMA剂量测定系统符合ISO/ASTM 52628“辐射处理中剂量测定实践”要求的方法。本标准将与ISO/ASTM 52628规程一起阅读。 1.4本规程涵盖在以下条件下使用PMMA剂量测定系统: 1.4.1吸收剂量范围为0.1 kGy至150 kGy。 1.4.2吸收剂量率为1×10？2至1×107 Gy·s？1。 1.4.3光子能量范围为0.1至25 MeV。 1.4.4电子能量范围为3至25 MeV。 1.5本标准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制定适当的安全、健康和环境实践，并在使用前确定监管限制的适用性。 1.6本国际标准是根据《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认的标准化原则制定的- 世界贸易组织技术性贸易壁垒（TBT）委员会发布的修正案。

1.1 This is a practice for using polymethylmethacrylate (PMMA) dosimetry systems to measure absorbed dose in materials irradiated by photons or electrons in terms of absorbed dose to water. The PMMA dosimetry system is generally used as a routine dosimetry system. 1.2 The PMMA dosimeter is classi？ed as a Type II dosim-eter on the basis of the complex effect of in？uence quantities (see ISO/ASTM Practice 52628). 1.3 This document 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 52628 "Prac-tice for Dosimetry in Radiation Processing" for a PMMA dosimetry system. It is intended to be read in conjunction with ISO/ASTM Practice 52628. 1.4 This practice covers the use of PMMA dosimetry systems under the following conditions: 1.4.1 the absorbed dose range is 0.1 kGy to 150 kGy. 1.4.2 the absorbed dose rate is1×10？2 to1×107 Gy·s？1. 1.4.3 the photon energy range is 0.1 to 25 MeV. 1.4.4 the electron energy range is 3 to 25 MeV. 1.5 This standard 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, health, and environmental practices and deter-mine the applicability of regulatory limitations prior to use. 1.6 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for the Development of International Standards, Guides and Recom-mendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.