ISO 23550:2018规定了与天然气、人造气或液化石油气（LPG）一起使用的燃气燃烧器和燃气器具控制装置的安全、结构、性能和测试要求。 ISO 23550:2018适用于最大工作压力不超过500 kPa时使用的控制装置。本文件提供了作为ISO 23551和ISO 23552系列中特定控制标准基础的一般要求。这些措施包括: -自动和半自动气阀； -燃气热电火焰监控； -气体和油/空气比控制； -气体压力调节器； -手动气阀； -机械式气体恒温器； -多功能气体控制； - 空气和气体压力传感装置； -排气阀； -气阀测试系统。 ISO 23550:2018仅涵盖型式试验。 ISO 23550:2018也适用于气体快速连接器（GQC），用于连接DN 25及以下、最大工作压力100 kPa及以下的电器内部。GQCs包括: -管对管连接； -控制连接的管道；和 -管到管件的连接。 ISO 23550:2018不适用于与液体燃料一起使用的机械控制装置。它也不适用于腐蚀性气体和废气。

ISO 23550:2018 specifies safety, construction, performance and testing requirements for controls for gas burners and gas burning appliances for use with natural gas, manufactured gas or liquefied petroleum gas (LPG). ISO 23550:2018 applies to controls for use at maximum operating pressures up to and including 500 kPa. This document provides the general requirements that are intended to be the basis for the specific control standards found in the ISO 23551 and ISO 23552 series. These include the following: - automatic and semi-automatic gas valves; - gas thermoelectric flame supervision controls; - gas and oil /air ratio controls; - gas pressure regulators; - manual gas valves; - mechanical gas thermostats; - multifunctional gas controls; - air and gas pressure-sensing devices; - gas vent valves; - gas valve-proving systems. ISO 23550:2018 covers type testing only. ISO 23550:2018 is also applicable to Gas Quick Connectors (GQC) for use inside appliances with connections up to, and including DN 25, and a maximum operating pressure up to and including 100 kPa. GQCs include: - tube to tube connections; - tube to control connections; and - tube to fitting connections. ISO 23550:2018 does not apply to mechanical controls for use with liquid fuels. It is also not applicable to corrosive and waste gases.