- Author
-
Nadada, K.
|
Saito, N.
|
Saso, Y.
|
Ogawa, Y.
- Title
- Evaluation of Fire Suppression Efficiency of Halon 2402 Collected From Fire Extinguishing System.
- Journal
-
Report of National Research Institute of Fire and Disaster,
No. 86,
22-27,
September 1998
- Keywords
-
halon 2402
|
evaluation
|
fire suppression
|
fire extinguishing agents
- Abstract
- ONLY ABSTRACT IN ENGLISH For the purpose of recycling halon 2402 collected from scrapped fire extinguishing systems without purification, purity and flame extinguishing concentrations for n-heptane of halon 2402 samples collected directly from fire different existing fire extinguishing systems were measured. The purity of all the samples, which were stored for 16 to 27 years, is higher than 99.9%. It shows that halon 2402 has excellent stability in such long periods of storage in the existing fire extinguishing systems. The flame extinguishing concentrations for n-heptane diffusion flame measured with FRI cup burner are 2.2±0.1% for all the samples. These values agree well with both the flame extinguishing concentration of a standard sample of halon 2402 in the present study and the literature data, 2.3±0.1%, reported by Saito et al. The present results demonstrate that halon 2402 with quality equal to or better than the collected samples examined in this study, can be reused as a supplementary agent for existing halon 2402 fire extinguishing systems without further purification.