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Table 3 to Subpart JJJ of Part 63—Group 1 Storage Vessels at Existing Affected Sources Producing the Listed Thermoplastics

Group 1 Storage Vessels at Existing Affected Sources Producing the Listed Thermoplastics

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  3. Title 40
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  5. Chapter I
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  7. Part 63
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  9. Subpart JJJ
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  11. Appendix Table 3 to Subpart JJJ of Part 63
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Displayed edition2026-04-27
Last updated2026-04-27

Table 3 to Subpart JJJ of Part 63—Group 1 Storage Vessels at Existing Affected Sources Producing the Listed Thermoplastics

ThermoplasticChemical aVessel capacity (cubic meters)Vapor pressure b (kilopascals)
ASA/AMSAN cstyrene/acrylonitrile mixture≥3.78≥0.47
acrylonitrile≥75.7≥1.62
Polystyrene, continuous processesall chemicals<75.7≥14.2
≥75.7
≥1.9
Nitrilecacrylonitrile≥13.25≥1.8
a Vessel capacity and vapor pressure criteria are specific to the listed chemical or to “all chemicals,” as indicated.
b Maximum true vapor pressure of total organic HAP at storage temperature.
c The applicability criteria in Table 2 of this subpart shall be used for chemicals not specifically listed in this table (i.e., Table 3).

[64 FR 11553, Mar. 9, 1999]