Quick Response Sprinklers : A sprinkler head designed for rapid operation that has increased surface-to-mass areas or special actuators, i. e. , metallic vane heat collectors or electronic squibs
Ralph W. Burklin & Robert G. Purington, Fire Terms: A Guide to Their Meaning and Use, National Protection Association, Boston, MA 1980 USA. (Guide: Meaning and Use, Nat Prot Association Fr Srvc - Amer) {457}