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POWDER REPORT
THE SIBERIAN AFFILIATE
OF THE FEDERAL STATE INSTITUTION
OF THE ALL-RUSSIAN
SCIENTIFIC AND RESEARCH INSTITUTE
FOR FIRE DEFENSE OF RUSSIA
Testing laboratory
By order of New Impulse Technologies
REPORT ON TESTS OF PHYSICAL AND FIRE EXTINGUISHING PROPERTIES
OF FIRE EXTINGUISHING POWDER “IMPULSE-STORM”
No 16-IS
Date November 12, 2006
Tested material characteristic
The object of the tests is a fire extinguishing powder “Impulse Storm Powder” ISP. The fire extinguishing powder is a mono-containing material and represents a fine-ground mineral of natural origin. The mechanism of fire extinguishing action of the powder is in inhibiting the reaction of burning by means of binding active centers of chain reactions occurring in the flame.
Powder having dispersion of not less than 40 mkm was provided for the tests.
Methods for conducting tests
The tests of the fire extinguishing powder “Impulse-Storm” are conducted in accordance with the Norms of Fire Safety of Russia No. 170-98 “Fire extinguishing powders of general purpose. General technical requirements. Methods of tests”.
The following technical characteristics are determined:
- apparent density of non-compacted powder;
- apparent density of compacted powder;
- determining dimension of powder particles;
- determining capacity for extinguishing a model fire center of A class;
- determining capacity for extinguishing a model fire center of B class;
Devices and equipment
Table 1 – Testing equipment, materials
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Name of TE
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Main technical characteristics
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Glass measuring cylinder with plug stopper
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Diameter 35 ± 5 mm, capacity 250 cm3
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Vibration stand
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Vibration with frequency of 100 Gz,
vibration acceleration from 50 to 150 m/sec2
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Stop watch “Agate”
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Metal sieves. Soft brush.
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Nets No. 1, No. 01, No. 005 according to standard
GOST 6613 with a lid and a tray
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Gasoline À-76
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Wooden bars
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Section 39 ± 1mm, length 500 mm
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Fire extinguishing powder “Impulse-Storm”
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Selected sample 40 kg
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Conditions for conducting laboratory tests:
- temperature +20°Ñ;
- atmosphere pressure 101 kPa;
- relative humidity 85%;
Conditions for conducting firing tests:
- temperature +20Ñ;
- atmosphere pressure 101 kPa;
- relative humidity 85%;
- wind speed 0,5 – 1,0 m/sec.
Results of conducting tests
Table 2 – Determining apparent density of non-compacted powder
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No.
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Mass of powder sample, g
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Volume of powder sample, cm3
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Apparent density, kg/m3
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Sample No. 1
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100
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121,9
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820
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Sample No. 2
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100
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121,6
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822
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Sample No. 3
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100
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121,8
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821
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Table 3 – Determining apparent density of compacted powder
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No.
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Mass of powder sample, g
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Volume of powder sample, cm3
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Apparent density, kg/m3
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Sample No. 1
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100
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95,2
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1050
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Sample No. 2
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100
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92,5
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1080
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Sample No. 3
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100
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93,
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1070
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Table 4 – Tests on determining dimension of powder particles
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No.
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Mass of powder sample, g
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Mass of powder on net No.1,
g
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Mass of powder on net No.0,1,
g
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Mass
of
powder on net No.0,05,
G
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Contents of
residuum on net No.1,
%
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Contents of
residuum on net No.0,1,
%
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Contents of
residuum on net No.0,05,
%
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Summary powder residuum on nets,
%
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Sample No. 1
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20
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0
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0,42
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1,3
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0
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2,1
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6,5
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8,6
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Sample No. 2
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20
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0
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0,3
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1,28
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0
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1,5
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6,4
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7,9
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Sample No. 3
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20
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0
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0,34
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1,32
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0
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1,7
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6,6
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8,3
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Table 5 – Tests on determining capacity for extinguishing a model fire center of A class
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No.
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Model fire center rank
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Fact of
extinguishing a fire center
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Mass of
powder for extinguishing a model fire center, kg
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Time of
extinguishing a fire center, sec
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Intensity of fire
extinguishing powder
supply,
kg/(sec.m2)
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Specific
consumption of fire
extinguishing powder,
kg/m2
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1
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1À
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Fire center extinguished
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7,52
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34
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0,221
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1,6
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2
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1À
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Fire center extinguished
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7,76
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36
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0,215
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1,65
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3
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1À
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Fire center extinguished
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7,66
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32
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0,239
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1,63
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Table 6 – Tests on determining capacity for extinguishing a model fire center of A class
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No.
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Model fire center rank
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Fact of
extinguishing a fire center
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Mass of
powder for extinguishing a model fire center, kg
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Time of
extinguishing a fire center, sec
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Intensity of fire
extinguishing powder
supply,
kg/(sec.m2)
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Specific
consumption of fire
extinguishing powder,
kg/m2
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1
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55Â
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Fire center extinguished
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2,72
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16
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0,17
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1,53
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2
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55Â
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Fire center extinguished
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2,77
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17
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0,18
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1,56
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3
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55Â
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Fire center extinguished
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2,81
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19
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0,15
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1,58
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Deputy Chief of Department
for Fire Research and Tests
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V.A.Chizhov
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Junior Research Officer of Department
for Securing Fire Safety of Objects
in Low Temperature Conditions
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V.A.Negin
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Senior Engineer of Department
for Fire Research and Tests
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A.V.Antonov
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NEWS
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CONTACTS
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