1.1本指南涵盖了在辐射处理中使用辐射敏感指示器（以下简称指示器）的程序。这些指示器可能是标签、纸张、油墨或包装材料，当暴露于电离辐射时会发生视觉变化（1-5）。2. 1.2使用指示剂的目的是目测产品是否受到辐射，而不是测量不同的剂量水平。 1.3指示器不是剂量计，不得用作适当剂量计的替代品。 其他ASTM和ISO/ASTM文件（见ISO/ASTM指南51261）提供了有关辐射处理剂量测定系统的信息。 1.4本标准无意解决与其使用相关的所有安全问题（如有）。本标准的用户有责任在使用前制定适当的安全和健康实践，并确定监管限制的适用性。 ====意义和用途====== 4.1指示器可用于显示产品已暴露于辐射源。 它们应仅用于提供辐射暴露的定性指示，并可用于区分已辐照的加工负载和未辐照的加工负载。 注1-使用指示剂并不消除对其他过程控制程序的需要，例如定量剂量测定或辐照产品与非辐照产品的受控分离。 注2:有关各类加工设施中指示剂的使用和独特产品应用的信息，请参阅ISO/ASTM标准51204、51431、51608、51649、51702、51939和51940。 4.2指示器制造商有义务提供一份声明，说明检查员（20/20视力）在标准照明（未过滤日光，或符合适当ASTM标准规定的光谱和强度的人造光）下能够确定指示器视觉变化的近似剂量水平。

1.1 This guide covers procedures for using radiationsensitive indicators (referred to hereafter as indicators) in radiation processing. These indicators may be labels, papers, inks or packaging materials which undergo a visual change when exposed to ionizing radiation (1-5).2 1.2 The purpose for using indicators is to determine visually whether or not a product has been irradiated, rather than to measure different dose levels. 1.3 Indicators are not dosimeters and shall not be used as a substitute for proper dosimetry. Information about dosimetry systems for radiation processing is provided in other ASTM and ISO/ASTM documents (see ISO/ASTM Guide 51261). 1.4 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 appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. ====== Significance And Use ====== 4.1 Indicators may be used to show that products have been exposed to a radiation source. They should be used only to provide a qualitative indication of radiation exposure and may be used to distinguish processed loads that have been irradiated from unirradiated process loads. NOTE 1—The use of indicators does not eliminate the need for other process-control procedures, such as quantitative dosimetry or the controlled segregation of irradiated from nonirradiated products. NOTE 2—See ISO/ASTM Standards 51204, 51431, 51608, 51649, 51702, 51939, and 51940 for information on the use of indicators in the various types of processing facilities and for unique product applications. 4.2 The indicator manufacturer is obliged to supply a statement regarding the approximate dose level at which the examiner (20/20 vision), at standard illumination (unfiltered daylight, or artificial light of the spectrum and intensity defined by the proper ASTM standard), is able to determine the visual change in the indicator.