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Filtration: DACC history

Table of contents

DACC is the material used in Respro combination filters. It was developed by the UK Ministry of Defence in 1980 for use in protecting against the threat of nuclear chemical and biological warfare. Since then, a number of approvals have been granted to companies to produce the material for industrial applications, including our filter manufacturer. To validate the application, the material has been tested using a number of different agents. The list is shown below.

Each agent has been assimilation tested and has been registered. The list has been compiled for use in confirming the reliability of industrial applications in air as well as water filtration.

Respro (UK) Ltd uses this material to filter chemicals found in the urban environment, known as Primary Pollutants as well as exhaust emissions. Chemicals include nitrogen oxides including NO and NO2, sulphur dioxide, a wide range of volatile organic compounds (VOCs - additives in fuels) and low level ozone (LLO). All have been tested with DACC and evaluated according to their absorption.

FILTRATION PROPERTIES

  • E = EXCELLENT

  • G = GOOD

  • M = MODERATE

  • P = SLOW

  • ALIFATIC CARBONATE

    • Acetylene - G

    • Butane (Isobutane) - E

    • Butylene - E

    • Butadiene - G

    • Cyclohexane - E

    • Decane - M

    • Etan - G

    • Ethylene - M

    • Heptane - E

    • Heptylene - G

    • Hexane - E

    • Hexylene - G

    • Methane - M

    • Nonane - G

    • Octane - G

    • Octylene - E

    • Pentane - G

    • Propane - M

    • Propylene - G

  • AROMATIC CARBONIDORS

    • Benzene (Respro® filter) - E

    • Naphthalene - E

    • Styrene monomer - E

    • Toluene - E

    • Toluidine - E

  • ESTRY

    • Butyl acetate - E

    • Ethylglycol acetate - E

    • Ethyl acetate - E

    • Ethyl formate - G

    • Isopropyl acetate - E

    • Methyl acetate - G

    • Methyl acetate - E

    • Methyl formate - G

    • Propyl acetate - E

  • ALDEHYDRIDS AND KETONES

    • Acetone - G

    • Acetaldehyde - G

    • Acrolein - G

    • Acrylic aldehyde - G

    • Benzoic aldehyde - E

    • Crotonaldehyde

    • Cyclohexanone - E

    • Diethylketone - E

    • Dipropylketone - E

    • Formaldehyde - M

    • Methylbutylketone - E

    • Methyl ethyl ketone - G

    • Valerianaldehyde - E

  • Acids

    • Oct - G

    • Acetic Acid - E

    • Acrylic - E

    • Butyrate - E

    • Carbolic - E

    • Arsenic - G

    • Lactic - E

    • Palmitic - E

    • Phenolic - E

    • Propionic - E

  • ALCOHOLS

    • Ethyl - G

    • Anyl - E

    • Butyl - E

    • Cyclohexanol - E

    • Isopropyl - E

    • Methanol (Methyl) - M

    • Propyl - E

  • SULPHUR compounds

    • Carbon disulphide - G

    • Dimethyl sulfate - G

    • Ethyl mercaptan - E

    • Hydrogen Sulfide - M

    • Methyl mercaptan - E

    • Propyl Mercaptan - E

    • Sulfur dioxide (Respro® filter) - E

    • Sulfur Trioxide - M

    • Sulfuric Acid - M

  • NITRIC ACIDS

    • Ammonia - M

    • Aniline - E

    • Diethyl amine - G

    • Diethyl aniline - G

    • Dimethyl Amine - E

    • Ethyl Amine - G

    • Nicotin - E

    • Nitric acid - G

    • Nitrobenzene - E

    • Nitroethane - E

    • Nitrogen dioxide (Respro® filter) - E

    • Nitroglycerin - E

    • Nitromethane - G

    • Nitropropane - E

    • Nitrotoluene - E

    • Urea - E

    • Uric acid - E

  • ETHERS

    • Amyl - E

    • Butyl - E

    • Cellosolve - E

    • Dioxane - E

    • Ethyl - G

    • Ethylene oxide - M

    • Isopropyl - E

    • Methyl cellosolve - E

    • Methyl - G

    • Propyl - E

  • FLUORANT CARBONATE

    • Butyl chloride - E

    • Carbon Tetrachloride - G

    • Chlorine - M

    • Chlorobenzene - E

    • Chlorobutadiene - E

    • Chloroform - E

    • Chloronitropropane - E

    • Chloropicrin - E

    • Dibromoethane - E

    • Dichlorobenzene - E

    • Bromine - G

    • Dichlorodifluoromethane - M

    • Dichlorodifluoroethane - G

    • Dichlorethane - E

    • Dichloroethylene - E

    • Dichloroethylether - E

    • Dichloromethane - M

    • Dichloromonofluoromethane - M

    • Dichloropropane - G

    • Dichlorotetrafluoroethane - M

    • Ethyl bromide - G

    • Ethyl Chloride - G

    • Ethylene Chlorohydrin - G

    • Ethylene Dichloride - G

    • Fluorotrichloromethane - M

    • Freon - M

    • Bromine - M

    • Hydrogen chloride - M

    • Hydrogen cyanide - M

    • Hydrogen fluoride - M

    • Hydrogen - M

    • Iodine - E

    • Methyl Bromide - E

    • Methyl Chloride - E

    • Methyl Chloroform - E

    • Methylene Chloride - E

    • Monochlorobenzene - E

    • Paradichlorobenzene - E

    • Perchloroethylene - G

  • FLUOROATED CARBOHYDREN

    • Propyl Chloride - G

      • .

    • Trifluorochloroethane - G

    • Tetrachloroethylene - G

    • Trichloroethylene - G

    • Vinyl chloride - G

The list is not exhaustive and other chemicals can also be adsorbed by DACC, but have yet to be tested.

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