1.1 本指南定义了基于一致观点的指南，用于解释测试结果，以识别各种化学形式的氰化物。它旨在提供对与化学分析、环境命运和运输有关的不同氰化物物种的化学性质的一般理解。 1.2 以国际单位制表示的数值应视为标准。本标准不包括其他计量单位。 1.3 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 本指南提供了用于识别和描述氰化物不同化学形式的标准术语。 氰化物化学的复杂性、多种不同化学形式的存在以及可能做出的各种监管区分，可能会导致有关氰化物的技术讨论和适当分析方法的选择出现混乱。本指南旨在提供术语和定义的澄清和通用框架，以便于讨论和参考不同的氰化物化学物种和氰化物化合物组。 4.2 从环境角度来看，使用这种通用术语尤其重要，因为某些形式的氰化物被认为是有毒的。因此，它们向环境中的释放受到联邦和州机构的监管。因此，正确的废水管理和测试需要对氰化物化学和物种定义有一个大致的了解。

1.1 This guide defines guidance based on a consensus of viewpoints for interpretation of test results to identify various chemical forms of cyanide. It is intended to provide a general understanding of the chemical nature of distinct cyanide species as related to chemical analysis and environmental fate and transport. 1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.3 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 This guide provides standard terminology for use in identifying and describing the different chemical forms of cyanide. The complex nature of cyanide chemistry, existence of numerous distinct chemical forms as well as the various regulatory distinctions that may be made can lead to confusion in technical discussions on cyanide and in the selection of appropriate methods for its analysis. This guide is intended to provide clarification and a common framework of terms and definitions to facilitate discussions and referencing different cyanide chemical species and groups of cyanide compounds. 4.2 The use of such common terminology is particularly important from an environmental perspective because certain forms of cyanide are considered to be toxic. Therefore, their release into the environment is regulated by federal and state agencies. Thus a general understanding of cyanide chemistry and species definitions is needed for proper wastewater management and testing.