Butenes, all isomers, including Isobutene
CAS Number
590-18-1, 624-64-6, 106-98-9, 107-01-7, 25167-67-3, 115-11-7
Last Revised
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TWA Limit
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STEL
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Ceiling Limit
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Notes & Notations
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If the substance you are searching has an entry that contains a size-selective fraction, form, or work activity, you should perform an additional search to confirm if other exposure limits may apply.
Ensure no workers are exposed to a substance that exceeds the exposure limits in accordance with OHSR 5.48.
Ensure no workers are exposed to a substance that exceeds the exposure limits in accordance with OHSR 5.48.