21 CFR 173.345 - Chloropentafluoroethane.
(a) The food additive has a purity of not less than 99.97 percent, and contains not more than 200 parts per million saturated fluoro compounds and 10 parts per million unsaturated fluoro compounds as impurities.
(b) The additive is used or intended for use alone or with one or more of the following substances: Carbon dioxide, nitrous oxide, propane, and octafluorocyclobutane complying with § 173.360, as an aerating agent for foamed or sprayed food products, with any propellant effect being incidental and no more than is minimally necessary to achieve the aerating function, except that use is not permitted for those standardized foods that do not provide for such use.
(c) To assure safe use of the additive
(i) The name of the additive, chloropentafluoroethane.
(ii) The percentage of the additive present in the case of a mixture.
(iii) The designation “food grade”.