---
kind: "section"
citation: "21 C.F.R. § 82.6"
title: "21"
number: "82.6"
heading: "Certifiable mixtures."
url: "https://uscodex.org/cfr/21/82.6"
---

# §82.6. Certifiable mixtures.

- (a) A batch of a mixture which contains no straight color listed in subpart C or D may be certified for use in food, drugs and cosmetics, if:
  - (1) Each coal-tar color used as an ingredient in mixing such batch is from a previously certified batch and such color has not changed in composition in any manner whatever since such previous certification, except by mixing into such batch of mixture;
  - (2) Each diluent in such batch of mixture is harmless and suitable for use therein; and
  - (3) No diluent (except resins, natural gum, pectin and, in the case of mixtures which are aqueous solutions or aqueous pastes, sodium benzoate in a quantity of not more than 1/10 of 1 percent) in such mixture is a nonnutritive substance, unless such mixture is for external application to shell eggs, or for use in coloring a food specified in the requests for certification of such batch submitted in accordance with [§ 80.21](/cfr/21/80.21.md) of this chapter, and such diluent, in the usual process of manufacturing such food, is removed and does not become a component of such food.
- (b) A batch of a mixture which contains no straight color listed in [subpart D](/cfr/21/subpartD.md), or which contains a diluent not permitted by [paragraph (a)(3)](#a-3) of this section, may be certified in accordance with the provisions of this part, for use only in drugs and cosmetics, if:
  - (1) Each coal-tar color used as an ingredient in mixing such batch is from a previously certified batch and such color has not changed in composition in any manner whatever since such previous certification, except by mixing into such batch of mixture.
  - (2) **Each diluent in such batch of mixture is harmless and suitable for use therein.**
- (c) A batch of a mixture which contains a straight color listed in subpart D may be certified in accordance with the provisions of this part, for use only in externally applied drugs and cosmetics, if:
  - (1) Each coal-tar color used as an ingredient in mixing such batch is from a previously certified batch and such color has not changed in composition in any manner whatever since such previous certification, except by mixing into such batch of mixture; and
  - (2) **Each diluent in such batch of mixture is harmless and suitable for use therein.**

## Notes

### Authority

Authority: 21 U.S.C. 371, 379e, 379e note.

### Source

Source: 42 FR 15669, Mar. 22, 1977, unless otherwise noted.