---
kind: "section"
citation: "16 C.F.R. § 1500.13"
title: "16"
number: "1500.13"
heading: "Listing of “strong sensitizer” substances."
url: "https://uscodex.org/cfr/16/1500.13"
---

# §1500.13. Listing of “strong sensitizer” substances.


On the basis of frequency of occurrence and severity of reaction information, the Commission finds that the following substances have a significant potential for causing hypersensitivity and therefore meet the definition for “strong sensitizer” in [section 2(k)](/cfr/16/2.md?p=k) of the act (repeated in [§ 1500.3(b)(9)](/cfr/16/1500.3.md?p=b-9)):

- (a) **Paraphenylenediamine and products containing it.**
- (b) **Powdered orris root and products containing it.**
- (c) Epoxy resins systems containing in any concentration ethylenediamine, diethylenetriamine, and diglycidyl ethers of molecular weight of less than 200.
- (d) **Formaldehyde and products containing 1 percent or more of formaldehyde.**
- (e) **Oil of bergamot and products containing 2 percent or more of oil of bergamot.**

## Notes

### Authority

Authority: 15 U.S.C. 1261-1278.

### Source

Source: 38 FR 27012, Sept. 27, 1973, unless otherwise noted.