Difference between revisions of "Class I substance"
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| − | + | A '''Class I substance''' is one of several groups of [[chemical]]s given an [[ozone-depletion potential]] (ODP) of 0.2 or higher by the [[Environmental Protection Agency]] (EPA). | |
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| + | Class I substances listed in the [[Clean Air Act]] include [[chlorofluorocarbon]]s, [[halon]]s, [[carbon tetrachloride]], and [[methyl chloroform]]. | ||
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| + | The [[EPA]] later added HBFCs and methyl bromide to the list by [[regulation]]. | ||
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| + | ==External Links== | ||
| + | *[http://www.epa.gov/ozone/ods.html Table] of class I substances shows their lifetime ODPs, [[global warming potential]]s, and [[CAS number]]s. | ||
[[Category:Chemistry]] | [[Category:Chemistry]] | ||
Revision as of 17:10, January 24, 2010
A Class I substance is one of several groups of chemicals given an ozone-depletion potential (ODP) of 0.2 or higher by the Environmental Protection Agency (EPA).
Class I substances listed in the Clean Air Act include chlorofluorocarbons, halons, carbon tetrachloride, and methyl chloroform.
The EPA later added HBFCs and methyl bromide to the list by regulation.
External Links
- Table of class I substances shows their lifetime ODPs, global warming potentials, and CAS numbers.
