“本标准适用于住宅单元内以及非住宅单元一部分的卧室/区域内烟雾报警器的检查、测试和维护。（参考附录A，解释性材料，第A1.1条和附录B，加强住宅消防安全。）烟雾报警器的安装要求见CAN/ULC-S553烟雾报警器安装标准。本标准不包括包含住宅火灾报警系统的系统。这些系统的要求参见CAN/ULC-S540《住宅火灾和生命安全报警系统标准:安装、检查、测试和维护》。（参考附录A，说明材料，第A1.3条，可能的安装场景，以及附录D，带发声器底座的烟雾探测器）

"This Standard applies to the inspection, testing and maintenance of smoke alarms within dwelling units as well as within sleeping rooms / areas that are not part of dwelling units. (Refer to Appendix A, Explanatory Materials, Clause A1.1 and Appendix B, Enhancement of Fire Safety in Residential Occupancies.)Requirements for the installation of smoke alarms are referenced in CAN/ULC-S553, Standard for the Installation of Smoke Alarms.This Standard does not cover systems incorporating residential fire warning systems. Requirements for these systems are referenced in CAN/ULC-S540, Standard for Residential Fire and Life Safety Warning Systems: Installation, Inspection, Testing and Maintenance. (Refer to Appendix A, Explanatory Materials, Clause A1.3, Possible Installation Scenarios, and Appendix D, Smoke Detector with Sounder Base)