1.1 该实践包括评估、选择和应用技术，以制定检验方案，供法医爆炸物检查员使用，以识别低爆炸物和高爆炸物的残留物。为分析爆炸后或其他爆炸相关场景中可见和不可见爆炸残留物的一致方法提供了基础。描述了按照有效的测试顺序开发识别信息的方法。 1.2 本规程规定了使用视觉、物理、分析和仪器技术的要求，这些技术为爆炸残留物的识别提供了结构和化学信息。 1.3 用于爆炸残留物检验的技术包括目视和显微镜检查、物理特性、点火敏感性测试、化学和现场测试以及仪器方法。 1.4 本标准适用于受过必要正规教育和专业培训的合格法医学从业者（参见实践 第2917页 )，并表现出熟练的法医案例工作能力（参见T/SWGFEX爆炸物分析培训建议指南）。 1.5 本标准并不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建立适当的安全、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 该做法旨在协助法医爆炸物检查员选择和组织鉴定爆炸物残留物的分析方案。 样品的数量和条件以及仪器技术的可用性将决定所选的分析方案。 6.2 法医爆炸物检查员考虑案件调查和提交项目的相关问题，如样本大小、复杂性和条件、环境影响以及使用的收集方法。考虑因素包括测试方法、样品制备方案、测试顺序以及样品更改和消耗的可接受程度，这些对于每个案例的提交都是不同的。 6.3 当没有足够的材料来遵循实践时，使用此实践 电子3253 . 6.4 本规程与参考文件一起使用。 6.5 这种做法并没有试图解决有关样本分析的所有问题。可以进行额外的测试或分析，以进一步鉴别和表征样品。

1.1 This practice covers the evaluation, selection, and application of techniques to establish an examination scheme for use by forensic explosives examiners to identify residues from low and high explosives. A foundation for the consistent approach to the analysis of visible and non-visible explosive residues from post-blast or other explosive-related scenes is provided. Methods for the development of identifying information that follows an efficient order of testing are described. 1.2 This practice establishes requirements for the use of visual, physical, analytical, and instrumental techniques that provide structural and chemical information for an identification of an explosive residue. 1.3 Techniques used in the examination of explosive residues include visual and microscopical inspection, physical characterization, ignition susceptibility testing, chemical and spot testing, and instrumental methods. 1.4 This standard is intended for use by competent forensic science practitioners with the requisite formal education, discipline-specific training (see Practice E2917 ), and demonstrated proficiency to perform forensic casework (refer to the T/SWGFEX Suggested Guide for Explosives Analysis Training). 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 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 practice is designed to assist the forensic explosives examiner in selecting and organizing an analytical scheme for identifying explosive residues. The amount and condition of the sample, as well as the availability of instrumental techniques, will determine the selected analytical scheme. 6.2 The forensic explosives examiner considers relevant issues about the case investigation and submitted items, such as sample size, complexity and condition, environmental effects, and collection methods used. Considerations include test methods, sample preparation schemes, test sequences, and acceptable degrees of sample alteration and consumption that will be different for each case submission. 6.3 This practice is used when insufficient material is present to follow Practice E3253 . 6.4 This practice is used in conjunction with the referenced documents. 6.5 This practice does not attempt to address all the issues regarding sample analyses. There could be additional tests or analyses performed to provide further discrimination and characterization of samples.