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Line 1: − + − + − A [http://www.epa.gov/ozone/ods.html table] of class I substances shows their lifetime [[ODP]]s, [[GWP]]s, and [[CAS]] numbers.+ +
Class I substance (view source)
Revision as of 23:57, September 17, 2007
, 23:57, September 17, 2007clean up
A Class I Substance is one of several groups of chemicals given an [[ozone-depletion potential]] of 0.2 or higher by the [[EPA]].
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 [[CAA]] include [[CFC]]s, [[halons]], [[carbon tetrachloride]], and [[methyl chloroform]].
Class I substances listed in the [[Clean Air Act]] include [[chlorofluorocarbon]]s, [[halons]], [[carbon tetrachloride]], and [[methyl chloroform]].
The [[EPA]] later added HBFCs and methyl bromide to the list by regulation.
The [[EPA]] later added HBFCs and methyl bromide to the list by regulation.
==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]]