1.1 本指南旨在介绍压敏胶带法医检验的其他标准指南。它旨在帮助进行法医磁带分析的个人评估、选择和应用对其检查有价值的测试。本指南描述了各种磁带的构造和分类，以及使用有效的测试顺序开发歧视性信息的方法。本标准概述和指导了压敏胶带分析和比较中使用的各种技术的强度和局限性。 目标是提供一种一致的法医磁带分析方法。 1.2 法医磁带检查员解决了诸如样本大小、样本的复杂性和条件、环境影响、收集和包装方法以及案件/调查特定问题等问题。这些因素要求法医卷尺检查员选择适合每个具体案件的测试方法、样品制备方案、测试顺序以及样品更改和消耗程度。 1.3 本标准旨在供受过必要的正规教育和纪律的合格法医学从业人员使用- 具体培训（见实践 E2917 实践 E3233 )，并表现出熟练的司法案件处理能力。 1.4 以国际单位制表示的数值应视为标准值。适用于工业用途的其他计量单位包括在本标准中。 1.5 本指南中讨论的一些方法涉及化学品、温度和辐射源的使用。本标准并非旨在解决与其使用相关的所有安全问题（如有）。本标准的用户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。 1.6 本国际标准是根据世界贸易组织技术性贸易壁垒（TBT）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》中确立的国际公认标准化原则制定的。 ====意义和用途====== 6.1 本指南旨在帮助法医磁带检查员选择和组织分析方案，以分析、比较和识别磁带。样品的大小和条件影响分析方案的选择。 每种技术的数据评估和解释是分析方案的重要组成部分，但不在本指南的范围内。这些将在其他ASTM标准中解决。

1.1 This guide is intended as an introduction to other standard guides for the forensic examination of pressure sensitive adhesive tape. It is intended to assist individuals who conduct forensic tape analyses in their evaluation, selection, and application of tests that can be of value to their examinations. This guide describes the construction and classification of various tapes and the methods to develop discriminatory information using an efficient order of testing. This standard provides an overview and guidance on the strengths and limitations of various techniques used in the analysis and comparison of pressure sensitive adhesive tapes. The goal is to provide a consistent approach to forensic tape analysis. 1.2 The forensic tape examiner addresses concerns such as sample size, complexity and condition of the sample, environmental effects, collection and packaging methods, and case/investigation specific issues. These factors require that the forensic tape examiner choose test methods, sample preparation schemes, testing sequences, and degree of sample alteration and consumption that are suitable to each specific case. 1.3 This standard is intended for use by competent forensic science practitioners with the requisite formal education, discipline-specific training (see Practice E2917 , Practice E3233 ), and demonstrated proficiency to perform forensic casework. 1.4 The values stated in SI units are to be regarded as standard. Other units of measurement are included in this standard as applicable to industrial usage. 1.5 Some of the methods discussed in this guide involve the use of chemicals, temperatures, and radiation sources. 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. 1.6 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 ====== 6.1 This guide is designed to assist the forensic tape examiner in selecting and organizing an analytical scheme for the analysis, comparison, and identification of tapes. The size and condition of the sample(s) influences the choice of analytical scheme. The evaluation and interpretation of the data for each technique is an important part of an analytical scheme but it is outside the scope of this guide. These will be addressed in other ASTM standards.