The ICDD's Powder Diffraction File™ (PDF®) is a database of inorganic and organic diffraction data used for phase identification and materials characterization by powder diffraction. The PDF has been available for over 75 years and finds application in X-ray, synchrotron, electron, and neutron diffraction analyses. With entries based on powder and single crystal data, the PDF is the only crystallographic database where every entry is editorially reviewed and marked with a quality mark that alerts the user to the reliability/quality of the submitted data. The editorial processes of ICDD's quality management system are unique in that they are ISO 9001:2015 certified. Initially offered as text on paper cards and books, the PDF evolved to a computer-readable database in the 1960s and today is both computer and web accessible. With data mining and phase identification software available in PDF products, and the databases’ compatibility with vendor (third party) software, the 1 000 000+ published PDF entries serve a wide range of disciplines covering academic, industrial, and government laboratories. Details describing the content of database entries are presented to enhance the use of the PDF.

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粉末衍射文件：优质材料表征数据库

ICDD 的粉末衍射文件™（PDF®) 是一个无机和有机衍射数据数据库，用于通过粉末衍射进行物相鉴定和材料表征。PDF 已推出超过 75 年，可用于 X 射线、同步加速器、电子和中子衍射分析。凭借基于粉末和单晶数据的条目，PDF 是唯一的晶体学数据库，其中每个条目都经过编辑审查并标有质量标记，提醒用户提交数据的可靠性/质量。ICDD 质量管理体系的编辑流程是独一无二的，因为它们通过了 ISO 9001:2015 认证。PDF 最初作为纸质卡片和书籍上的文本提供，在 1960 年代演变为计算机可读的数据库，如今可通过计算机和网络访问。借助 PDF 产品中提供的数据挖掘和相位识别软件，以及数据库与供应商（第三方）软件的兼容性，已发布的 1 000 000 多个 PDF 条目服务于涵盖学术、工业和政府实验室的广泛学科。提供了描述数据库条目内容的详细信息，以增强 PDF 的使用。