16 CFR 1500.5
§ 1500.5 Hazardous mixtures.
United States · 16 CFR — Commercial Practices · Status: effective
Cite this
- Citation
- 16 CFR 1500.5, § 1500.5 Hazardous mixtures, United States, version 1 as recorded 2026-07-09, yourstate.us, https://yourstate.us/provision/65919
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Full text
For a mixture of substances, the determination of whether the mixture is a “hazardous substance” as defined by section 2(f) of the act (repeated in § 1500.3(b)(4)) should be based on the physical, chemical, and pharmacological characteristics of the mixture. A mixture of substances may therefore be less hazardous or more hazardous than its components because of synergistic or antagonistic reactions. It may not be possible to reach a fully satisfactory decision concerning the toxic, irritant, corrosive, flammable, sensitizing, or pressure-generating properties of a substance from what is known about its components or ingredients. The mixture itself should be tested.
Legislative history
This is a federal regulation, adopted through agency rulemaking under the Administrative Procedure Act — not enacted by a recorded vote of Congress.