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Title 21: Food and Drugs
« Home / Title 21 - Food and Drugs--Volume 6 / CHAPTER I - FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) / SUBCHAPTER E - ANIMAL DRUGS, FEEDS, AND RELATED PRODUCTS / PART 573 - FOOD ADDITIVES PERMITTED IN FEED AND DRINKING WATER OF ANIMALS / Subpart B - Food Additive Listing / § 573.340 Diatomaceous earth.
§ 573.340 Diatomaceous earth.

(a) Identity. The additive consists of siliceous skeletal material derived from various species of diatoms.

(b) Specifications. The additive shall conform to the following specifications:

Lead, not more than 15 parts per million. Arsenic (as As), not more than 20 parts per million Fluorine, not more than 600 parts per million.

(c) Uses. It is used or intended for use as an inert carrier or anticaking agent in animal feeds in an amount not to exceed 2 percent by weight of the total ration.

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