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Electronic Code of Federal Regulations (e-CFR)
Title 40—Protection of Environment
CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY
SUBCHAPTER C—AIR PROGRAMS
PART 63—NATIONAL EMISSION STANDARDS FOR HAZARDOUS AIR POLLUTANTS FOR SOURCE CATEGORIES
Subpart XX—National Emission Standards for Ethylene Manufacturing Process Units: Heat Exchange Systems and Waste Operations
Table 1 to Subpart XX of Part 63—Hazardous Air Pollutants
40 CFR Appendix Table 1 to Subpart XX of Part 63 - Table 1 to Subpart XX of Part 63—Hazardous Air Pollutants
CFR
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Table 1 to Subpart XX of Part 63—Hazardous Air Pollutants
Hazardous air pollutant
CAS No.
Benzene
71432
1,3-Butadiene
106990
Cumene
98828
Ethyl benzene
100414
Hexane
110543
Naphthalene
91203
Styrene
100425
Toluene
108883
o-Xylene
95476
m-Xylene
108383
p-Xylene
106423