1.1 本指南描述了用于测量一氧化碳（CO）警报或探测器对气体、蒸汽及其混合物的响应的测试系统。 1.2 该系统用于评估CO探测器对各种CO浓度的响应，验证探测器在特定CO浓度下报警，并验证CO探测器在其他特定CO浓度下不报警。 1.3 该系统用于评估CO探测器对可能干扰探测器对CO响应能力的气体和蒸汽的响应。 1.4 此类测试系统的主要组件包括腔室、清洁空气供应模块、加湿模块、气体和蒸汽输送模块以及验证和控制仪表。 1.5 对于每个组件，本指南提供了不同方法的比较，并讨论了其优缺点。 1.6 本指南还提出了测试系统最低配置的建议。 1.7 单位- 以国际单位制表示的数值应视为标准值。本标准不包括其他计量单位。 1.8 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。 有关更具体的安全预防信息，请参阅 6.2 . 1.9 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====== 5.1 本指南提供了有关测试系统及其组件的信息，用于测量受到气体、蒸汽及其混合物影响的CO警报或探测器的响应。测试系统的组件包括腔室、清洁空气供应模块、加湿模块、气体和蒸汽输送模块以及验证和控制仪表。 5.2 通过在指定激发浓度下连续暴露于CO和干扰气体来测试CO检测器。正常工作的警报/探测器在充分暴露于CO时会发出声音，但在暴露于符合适用标准（例如，IAS 6-96）的干扰气体时不会发出声音 ( 1. ) , 5. L 2034）。

1.1 This guide describes testing systems used for measuring responses of carbon monoxide (CO) alarms or detectors subjected to gases, vapors, and their mixtures. 1.2 The systems are used to evaluate responses of CO detectors to various CO concentrations, to verify that the detectors alarm at certain specified CO concentrations, and to verify that CO detectors do not alarm at certain other specified CO concentrations. 1.3 The systems are used for evaluating CO detector responses to gases and vapors that may interfere with the ability of detectors to respond to CO. 1.4 Major components of such a testing system include a chamber, clean air supply module, humidification module, gas and vapor delivery module, and verification and control instrumentation. 1.5 For each component, this guide provides a comparison of different approaches and discusses their advantages and disadvantages. 1.6 The guide also presents recommendations for a minimum configuration of a testing system. 1.7 Units— The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.8 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. For more specific safety precautionary information, see 6.2 . 1.9 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 ====== 5.1 This guide provides information on testing systems and their components used for measuring responses of CO alarms or detectors subjected to gases, vapors, and their mixtures. Components of a testing system include a chamber, clean air supply module, humidification module, gas and vapor delivery module, and verification and control instrumentation. 5.2 The CO detector is tested by sequential exposure to CO and interference gases at the specified challenge concentrations. A properly functioning alarm/detector will sound upon sufficient exposure to CO but will not sound upon any exposure to interference gases consistent with applicable standards (for example, IAS 6-96 ( 1 ) , 5 L 2034).