Fluid compound for function testing smoke detectors and its use

Details Fluid compound for function testing smoke detectors and its use Fluid compound for function testing smoke detectors and its use

G - Physics

08

B

G08B 29/14 (2006.01) C09K 3/30 (2006.01)

Patent

CA 2590840

Disclosed is a fluid mixture for performing performance tests on smoke detectors. Said fluid mixture comprises a propellant and at least one aerosol component that is admixed to said propellant. The inventive fluid mixture is formed by a mixture which is liquid at ambient temperature and atmospheric pressure and contains a spray as a propellant. The aerosol component is composed of at least one of the substances from the group comprising sebacic acid-bis-2-ethyl-hexyl ester, sebacic acid diester with various ester groups, liquid petrolatum, phthalic acid-dibutyl ester, phthalic acid-bis-2-ethyl- hexyl ester, and triethylene glycol. In order to use the fluid mixture for performing a performance test on smoke detectors, the pressure for spraying the fluid mixture is generated with the aid of gas pressure, i.e. using carbon dioxide, dimethyl ether, or nitrogen, preferably carbon dioxide.

L'invention concerne un mélange de fluides destiné au contrôle du fonctionnement de détecteurs de fumée, composé d'un propulseur et d'au moins un composant aérosol mélangé au propulseur. Le mélange de fluides est un mélange fluide à température et pression ambiantes et contient un liquide de pulvérisation en tant que propulseur. Le composant aérosol est composé d'au moins un des constituants suivants : bis-2-éthyl-hexylester d'acide sébacique ; diester d'acide sébacique contenant divers groupes ester ; huile de paraffine ; dibutylester d'acide phtalique ; bis-2-éthyl-hexylester d'acide phtalique ; et triéthylène-glycol. Lors de l'utilisation du mélange de fluides pour le contrôle du fonctionnement de détecteurs de fumée, la pression de pulvérisation du mélange est produite par pression gazeuse, notamment par l'intermédiaire de dioxyde de carbone, diméthyléther ou azote, de préférence par l'intermédiaire de dioxyde de carbone.

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