G - Physics – 08 – B
Patent
G - Physics
08
B
G08B 29/14 (2006.01) C09K 3/30 (2006.01)
Patent
CA 2591908
A gas mixture for testing the functioning of smoke detectors is comprised of a propellant gas and of at least one aerosol component that is admixed to said propellant gas with a mixing ratio of no greater than 2 % by weight. The at least one aerosol component is comprised of at least one of the following substances: sebacic acid-bis-2-ethyl-hexylester, sebacic acid diester containing diverse ester groups, paraffin oil, dibutyl phthalate, phthalic acid-bis-2-ethyl-hexylester and butyloxyethanol. The propellant is comprised of isobutane or n-butane or propane or any mixtures thereof.
Mélange gazeux permettant de vérifier la fonction de détecteurs de fumée, constitué d'un gaz propulseur et d'au moins un constituant aérosol qui est ajouté au gaz propulseur mentionné selon un rapport de mélange de 2 % en poids au maximum. Le(s) constituant(s) aérosol(s) (est) sont constitué(s) d'au moins une des substances parmi le bis-2-éthyl-hexylester d'acide sébacique, le diester d'acide sébacique avec divers groupes ester, l'huile de paraffine, le dibutylester d'acide phtalique, le bis-2-éthyl-hexylester d'acide phtalique et le butyloxyéthanol. Le gaz propulseur est constitué d'isobutane ou de n-butane ou de propane ou de mélanges quelconques desdits gaz.
Aktiengesellschaft Siemens
Fetherstonhaugh & Co.
Siemens Schweiz Ag
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