As specified in § 63.5758(a)(6), when detailed organic HAP content data for solvent blends are not available, you may use the values in the following table:
| Solvent type
| Average organic HAP content, percent by mass
| Typical organic HAP, percent by mass
|
|---|
| Aliphatic (Mineral Spirits 135, Mineral Spirits 150 EC, Naphtha, Mixed Hydrocarbon, Aliphatic Hydrocarbon, Aliphatic Naptha, Naphthol Spirits, Petroleum Spirits, Petroleum Oil, Petroleum Naphtha, Solvent Naphtha, Solvent Blend.) | 3 | 1% Xylene, 1% Toluene, and 1% Ethylbenzene.
|
| Aromatic (Medium-flash Naphtha, High-flash Naphtha, Aromatic Naphtha, Light Aromatic Naphtha, Light Aromatic Hydrocarbons, Aromatic Hydrocarbons, Light Aromatic Solvent.) | 6 | 4% Xylene, 1% Toluene, and 1% Ethylbenzene. |