1.1 本文件涵盖辐射敏感指示器（以下简称 指标 )在辐射处理中。这些指示剂可以是标签、纸张、墨水或包装材料，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直观地确定产品是否经过辐照，而不是测量不同的剂量水平。 1.3 指示剂不是剂量计，不应用作适当剂量测定的替代品。 其他ASTM和ISO/ASTM文件中提供了有关辐射处理剂量测定系统的信息（见ISO/ASTM指南 51261 ). 1.4 本标准并非旨在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在使用前制定适当的安全、健康和环境实践，并确定监管限制的适用性。 1.5 本国际标准是根据世界贸易组织技术性贸易壁垒委员会发布的《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。 ====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工艺负荷和未辐照的负荷。 注1: 指示剂的使用并不能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: 参见ISO/ASTM标准 51608 , 51649 , 51702 , 51939 和 51940 以获取关于在各种类型的加工设施中使用指示器的信息以及用于独特的产品应用。 4.2 指示剂制造商有义务提供一份关于大致剂量水平的声明，在该剂量水平下，检查人员（20/20视力）在标准照明（未过滤的日光，或适当ASTM标准定义的光谱和强度的人造光）下能够确定指示剂的视觉变化。

1.1 This document covers procedures for using radiation-sensitive 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 should 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. ====== 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 process loads that have been irradiated from unirradiated 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 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.