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请输入英文单字，中文词皆可：

oxygenous    
a. 氧气的,含氧的,产生氧气的

氧气的,含氧的,产生氧气的


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  • Testing fire alarm sounders to BS EN 5839 | Cirrus Research plc
    If you’re measuring the noise level from fire alarm sounders in accordance with BS EN 5839, the sound level meter that you use must meet a specified standard, BS EN 61672-1:2003, and must display the level in dB (A) using Slow Time Weighting
  • Fire Alarm Strobe Sounder Test - YouTube
    This Video is about the details and testing of AW-CSS2166-5 Conventional Strobe Sounder
  • Inspection of Audible Range of Fire Alarm Sounders
    These systems are designed to detect fires at an early stage and alert occupants through audible and visual signals One essential aspect of these systems is the inspection of audible range of fire alarm sounders
  • Sound Level Test Certification Form
    This document contains a sound level test form for fire alarm systems It includes sections for project details, test locations and results, notes on sound level requirements, instrumentation used, and certifications
  • Fire Alarm System Test Checklist
    This checklist is designed to help facility managers, safety officers, and property owners perform and document fire alarm system tests in compliance with NFPA 72 and local fire codes
  • Directional Sound Performance Testing - SFPE
    This test is repeated 18 times for each subject A group of ten subjects must correctly identify which sounder activated at least 75 percent of the time for the sounder to be considered "directional ”
  • TMS Fire Alarm Test Record - SafetyCulture
    Use this Fire Alarm Test Record template to record weekly call point tests, sounder audibility, detector condition, and repairs to keep site compliant and safe
  • FIRE ALARMS — Sounder Systems
    Our team has proven experience installing, testing and maintaining fire alarm systems by leading manufacturers With our round-the-clock monitoring services for new and existing fire alarm systems, we can help keep your commercial or residential property safe
  • What is a Fire Alarm Sounder? - Cranford Controls
    A sounder typically produces a loud, distinctive sound that is easily recognizable as a fire alarm It is usually mounted on the ceiling or wall, and it can be powered by electricity or battery The sounder is connected to the fire alarm control panel, which is the brain of the fire alarm system





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