16 CFR 1500.5 - Hazardous mixtures.

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§ 1500.5 Hazardous mixtures.

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.

Title 16 published on 2015-01-01

The following are ALL rules, proposed rules, and notices (chronologically) published in the Federal Register relating to 16 CFR Part 1500 after this date.

  • 2015-11-19; vol. 80 # 223 - Thursday, November 19, 2015
    1. 80 FR 72342 - Amendment To Clarify When Component Part Testing Can Be Used and Which Textile Products Have Been Determined Not To Exceed the Allowable Lead Content Limits; Delay of Effective Date and Extension of Comment Period
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      Direct final rule; delay of effective date and extension of comment period.
      The effective date for the direct final rule published October 14, 2015, at 80 FR 61729, is delayed from December 14, 2015, until January 13, 2016. The rule will be effective unless we receive a significant adverse comment. If we receive a significant adverse comment, we will publish notification in the Federal Register withdrawing this direct final rule before its effective date. The comment date is extended to December 14, 2015.
      16 CFR Parts 1109 and 1500