1.1本规程涵盖了收集和保存与一氧化碳中毒事件相关的信息和物证的指南。 1.2本规程无意作为调查敌对火灾或密闭空气系统污染引起的一氧化碳中毒的指南。NFPA中提供了与火灾相关的一氧化碳中毒调查指南 921 , 火灾和爆炸调查指南 . 1.3以英寸-磅为单位的数值应视为标准值。括号中给出的值是到国际单位制的数学转换，仅供参考，不被视为标准值。 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）。本标准的用户有责任在使用前制定适当的安全和健康实践，并确定监管限制的适用性。 ====意义和用途====== 3.1在美国，一氧化碳中毒每年造成约300人死亡（不包括火灾死亡），而一氧化碳中毒导致数千人就医。 3.2本规程适用于调查一氧化碳中毒事件的个人。 如果遵循此程序，可以确定一氧化碳中毒事件的原因，并采取措施防止未来发生事件。

1.1 This practice covers guidelines for collecting and preserving information and physical evidence related to incidents involving the poisoning of individuals by carbon monoxide. 1.2 This practice is not intended to be a guide for investigating carbon monoxide poisoning caused by hostile fires, or contamination in closed air systems. Guidance on the investigation of carbon monoxide poisonings related to fire can be found in NFPA 921 , Guide for Fire and Explosion Investigations . 1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard. 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 and health practices and determine the applicability of regulatory limitations prior to use. ====== Significance And Use ====== 3.1 Carbon monoxide poisoning is responsible for approximately 300 deaths annually in the United States, (excluding fire deaths) and carbon monoxide poisoning causes thousands of individuals to seek medical attention. 3.2 This practice is intended for use by individuals who investigate incidents involving carbon monoxide poisoning. If this procedure is followed, the cause for the carbon monoxide poisoning incident may be determined, and steps can be taken to prevent future incidents.