End-of-Service-Time Indicator : A warning device on an SCBA that warns the user that the end of the service time of the SCBA is approaching. NFPA 1981, 2002 ed
National Fire Protection Association, Illustrated Dictionary of Fire Service Terms, Jones & Bartlett Publishers, MA. USA 2006. https://books.google.com.kw/books?id=W0WIRa3Gl4QC& printsec=frontcover&source=gbs_ge_summary_r&cad=0# v=onepage&q&f=false, (Fr Srvc - Amer) {141}
NFPA 1981 Standard on Open-Circuit Self-Contained Breathing Apparatus for Fire and Emergency Services, 2002 ed. https://www.nfpa.org/assets/files/AboutTheCodes/18 52/1852-F2007-ROP.pdf, (Std: Open-Circuit SCBA for Fr and Emr Srvc - Amer) {432 NFC}