Enclosed space ignition test for spray aerosols<\/h3>\n
This test is used for aerosols with a spray distance \u2265 15 cm, provided no ignition occurred in the ignition distance test.
\nThe contents of a pressurized aerosol dispenser are sprayed into a cylindrical test vessel containing a burning candle (Figure 5). If an observable ignition occurs, the elapsed time and discharged mass of aerosol are noted to evaluate the ignitability of the aerosol spray.<\/p>\n
The classification is as follows:<\/p>\n
- \n
- The aerosol shall be classified as flammable if the time equivalent in the enclosed space ignition test is \u2264 300 s\/m3 or the deflagration density is \u2264 300 g\/m3.<\/li>\n
- Otherwise, the aerosol is classified as non-flammable. For this classification, an enthalpy of combustion of < 20 kJ\/g must also have been determined. If the enthalpy of combustion is \u2265 20 kJ\/g, the aerosol is to be classified as flammable, regardless of the result of the enclosed space ignition test.<\/li>\n<\/ul>\n
The time equivalent is calculated according to:<\/p>\n
![\"\"](\"https:\/\/consilab.de\/wp-content\/uploads\/2021\/06\/discharge-time.jpg\")
<\/p>\nAnd the deflagration density is calculated according to:<\/p>\n
![\"\"](\"https:\/\/consilab.de\/wp-content\/uploads\/2021\/06\/Amount-of-product-dispensed.jpg\")
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