✍ Scribed by Sunil K. Sharma; M. P. Singh; N. K. Saxena; S. K. Srivastava
No coin nor oath required. For personal study only.
In the study of smoke suppressants the measurement of gross amount of smoke from a given sample is essential. However, smoke being a complex phenomenon, its measurement with optical methods presents practical problems. The paper describes a flow system for the measurement of smoke production. Effectiveness of smoke-suppressant formulations for poly(viny1 chloride) as assessed in a flow system is reported. Results of experiments conducted to probe and establish the capability of smoke measurement in a flow system using a helium-neon laser are discussed.
I N T R O D U C T I O N
Smoke is measured mechanically by depositing or sucking liquids and solid aerosols particles from smoke gases onto a filter and weighing them. A test method (ASTM D 4100-82) based on this technique is the Arapahoe Smoke However, this has never achieved great
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