Code of Federal Regulations > Title 40 > Chapter I > Part 63 > Subpart U > Appendix - Table 5 to Subpart U of Part 63—Known Organic HAP Emitted From the Production of Elastomer Products

Regulations last checked for updates: May 18, 2024

Title 40 - Protection of Environment last revised: May 16, 2024

Appendix - Table 5 to Subpart U of Part 63—Known Organic HAP Emitted From the Production of Elastomer Products

[Known organic HAP emitted from the production of elastomer products]

Organic HAP/Chemical name (CAS No.)	Elastomer product/subcategory
Organic HAP/Chemical name (CAS No.)	BR	EPI	EPR	HYP	NEO	NBL	NBR	PBR/SBRS	PSR	SBL	SBRE
Acrylonitrile (107131)						X	X
1,3 Butadiene (106990)						X	X	X		X	X
Carbon Disulfide						X	X	X		X	X
Carbon Tetrachloride (56235)				X
Chlorobenzene (108907)				X
Chloroform (67663)				X
Chloroprene (126998)					X
Epichlorohydrin (106898)		X
Ethylbenzene (100414)	X									X
Ethylene Dichloride (107062)									X
Ethylene Oxide (75218)		X							X
Formaldehyde (50000)		X							X
Hexane (110543)	X		X					X
Methanol (67561)	X							X
Methyl Chloride (74873)	X			X
Propylene Oxide (75569)		X
Styrene (100425)								X		X	X
Toluene (108883)		X	X		X			X
Xylenes (1330207)	X
Xylene (m-) (108383)	X
Xylene (o-) (95476)	X
Xylene (p-) (106423)	X

CAS No. = Chemical Abstract Service Number.

BR = Butyl Rubber.

EPI = Epichlorohydrin Rubber.

EPR = Ethylene Propylene Rubber.

HYP = Hypalon ^TM.

NEO = Neoprene.

NBL = Nitrile Butadiene Latex.

NBR = Nitrile Butadiene Rubber.

PBR/SBRS = Polybutadiene and Styrene Butadiene Rubber by Solution.

PSR = Polysulfide Rubber.

SBL = Styrene Butadiene Latex.

SBRE = Styrene Butadiene Rubber by Emulsion.

[76 FR 22594, Apr. 21, 2011]

authority: 42 U.S.C. 7401

source: 57 FR 61992, Dec. 29, 1992, unless otherwise noted.