MAP20071017951 Columbus, W.A. Fire detection / W.A. Columbus Sumario: Fire-alert systems fall into several classifications, including thermal, flame, smoke, and products-of-combustion detectors. These may be used singly or in combination to alert those responsible to initiate action En: National safety news. - Chicago. - Vol. 113, nº 6, June 1976 ; p. 64-68 1. Seguridad contra incendios . 2. Sistemas de detección de incendios . 3. Detectores de incendios . 4. Detectores de humos . 5. Detectores de calor . 6. Detectores térmicos . 7. Información . I. Título. II. Título: National safety news.