An aerosol form of the mixture may be classified in the same hazard category as the tested non-aerosolized form of the mixture provided that the added propellant does not affect the sensitizing properties of the mixture upon spraying a substance enclosed under pressure and able to be released as a fine spray, typically by means of a propellant gasRicin is a toxin derived from the beans of the castor plant, and can easily be produced as an aerosol spray or fine powder
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