TY - BOOK
T1 - Comparison of petrol and commercial heptane in mechanical foam extinguishing tests
T2 - NORDTEST-projekt 277-81
AU - Ahonen, Antti
AU - Holmlund, Christer
AU - Kokkala, Matti
AU - Weckman, Henry
PY - 1982
Y1 - 1982
N2 - The determination of the extinguishing capability of
mechanical fire extinguishing foams has traditionally
been made by performing extinguishing tests on burning
trays containing motor petrol. This liquid has several
drawbacks: it is a mixture of several hydrocarbons that
vary both seasonally and geographically, causing poor
reproducibility; it also contains carcinogenic compounds
and its use may thus be restricted in some countries.
Therefore it would be useful to replace petrol with a
well defined and possibly nontoxic liquid.
The paper reports the results from 24 extinguishing tests
with three low expansion and one high expansion foam
liquid on burning trays containing both petrol and a
hydrocarbon mixture with a boiling range of 80...110°C,
known as 'commercial heptane'. The results show that
petrol can be replaced by this hydrocarbon mixture in the
case of low expansion foams without any need of changing
the acceptance criteria of the test methods. In
extinguishing tests with high expansion foams, however,
petrol cannot be replaced without considerable changes in
the acceptance criteria.
AB - The determination of the extinguishing capability of
mechanical fire extinguishing foams has traditionally
been made by performing extinguishing tests on burning
trays containing motor petrol. This liquid has several
drawbacks: it is a mixture of several hydrocarbons that
vary both seasonally and geographically, causing poor
reproducibility; it also contains carcinogenic compounds
and its use may thus be restricted in some countries.
Therefore it would be useful to replace petrol with a
well defined and possibly nontoxic liquid.
The paper reports the results from 24 extinguishing tests
with three low expansion and one high expansion foam
liquid on burning trays containing both petrol and a
hydrocarbon mixture with a boiling range of 80...110°C,
known as 'commercial heptane'. The results show that
petrol can be replaced by this hydrocarbon mixture in the
case of low expansion foams without any need of changing
the acceptance criteria of the test methods. In
extinguishing tests with high expansion foams, however,
petrol cannot be replaced without considerable changes in
the acceptance criteria.
M3 - Report
SN - 951-38-1616-8
T3 - Valtion teknillinen tutkimuskeskus. Tutkimuksia - Research Reports
BT - Comparison of petrol and commercial heptane in mechanical foam extinguishing tests
PB - VTT Technical Research Centre of Finland
CY - Espoo
ER -