§ 173.355 Dichlorodifluoromethane.
The food additive dichlorodifluoromethane may be safely used in food in accordance with the following prescribed conditions:
（a） The additive has a purity of not less than 99.97 percent.
（b） It is used or intended for use, in accordance with good manufacturing practice, as a direct-contact freezing agent for foods.
（c） To assure safe use of the additive:
（1） The label of its container shall bear, in addition to the other information required by the act, the following:
（i） The name of the additive, dichlorodifluoromethane, with or without the parenthetical name “Food Freezant 12”。
（ii） The designation “food grade”。
（2） The label or labeling of the food additive container shall bear adequate directions for use.
更多关于美国 FDA 可直接加入食品中的辅助性食品添加剂的种类法规，请点击美国FDA 21 CFR 第173部分可直接加入食品中的辅助性食品添加剂种类汇总
