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Clean Air Solvent Certification Protocol
Appendix V
Maximum Incremental Reactivity
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September 2003
| NMOG Constituent | Maximum Incremental Reactivity (g O3/g NMOG) |
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| 1,3-Butadiene | 7.7 |
| 1,3,5-Trimethyl Benzene | 7.5 |
| 1,2,3-Trimethyl Benzene | 7.4 |
| 1,2,4-Trimethyl Benzene | 7.4 |
| cis-2-Butene | 7.3 |
| trans-2-Butene | 7.3 |
| C10 Trialkyl Benzenes | 6.7 |
| Propene | 6.6 |
| Isoprene | 6.5 |
| C5 Internal Alkenes | 6.2 |
| Formaldehyde | 6.2 |
| 1-Butene | 6.1 |
| C11 Trialkyl Benzenes | 6.1 |
| m-Xylene | 6.0 |
| C12 Trialkyl Benzenes | 5.6 |
| C6 Internal Alkenes | 5.3 |
| C9 Dialkyl benzenes | 5.3 |
| Ethene | 5.3 |
| o-Xylene | 5.2 |
| p-Xylene | 5.2 |
| 2-Methyl-2-Butene | 5.0 |
| C10 Dialkyl benzenes | 4.8 |
| Propionaldehyde | 4.6 |
| C7 Internal Alkenes | 4.4 |
| C11 Dialkyl benzenes | 4.3 |
| 1-Pentene | 4.2 |
| 3-Methyl-1-Butene | 4.2 |
| Isobutene | 4.2 |
| Cyclopentene | 4.0 |
| C12 Dialkyl benzenes | 3.9 |
| Acetaldehyde | 3.8 |
| 2-Methyl-1-Butene | 3.7 |
| 2,3-Dimethyl-2-Butene | 3.7 |
| 2,3-Dimethyl Naphthalene | 3.7 |
| C8 Internal Alkenes | 3.6 |
| Cyclohexene | 3.3 |
| C9 Internal Alkenes | 3.2 |
| 1-Hexene | 3.0 |
| C6 Terminal Alkenes | 3.0 |
| C10 Internal Alkenes | 2.8 |
| C11 Internal Alkenes | 2.5 |
| C7 Terminal Alkenes | 2.4 |
| Methyl Naphthalene | 2.4 |
| C12 Internal Alkenes | 2.3 |
| C13 Internal Alkenes | 2.1 |
| C8 Terminal Alkenes | 1.9 |
| C14 Internal Alkenes | 1.9 |
| a-Pinene | 1.9 |
| b-Pinene | 1.9 |
| Toluene | 1.9 |
| C15 Internal Alkenes | 1.8 |
| Ethyl Benzene | 1.8 |
| Methylcyclopentane | 1.7 |
| Cyclopentane | 1.6 |
| C9 Cycloalkanes | 1.6 |
| C9 Terminal Alkenes | 1.6 |
| Cresols | 1.6 |
| n-Butyl Alcohol | 1.6 |
| Isopropyl Benzene | 1.5 |
| n-Propyl Benzene | 1.44 |
| C8 Cycloalkanes | 1.36 |
| Ethycyclohexane | 1.36 |
| Ethyl t-Butyl Ether | 1.33 |
| n-Propyl Alcohol | 1.33 |
| C10 Terminal Alkenes | 1.32 |
| C10 Cycloalkanes | 1.31 |
| n-Butyl Benzene | 1.29 |
| C10 Monoalkyl Benzenes | 1.28 |
| C11 Cycloalkanes | 1.23 |
| C12 Cycloalkanes | 1.20 |
| C7 Cycloalkanes | 1.17 |
| Methylcyclohexane | 1.17 |
| C11 Monoalkyl Benzenes | 1.16 |
| C11 Terminal Alkenes | 1.15 |
| Ethylene Glycol | 1.13 |
| 2,4-Dimethyl Pentane | 1.07 |
| C12 Monoalkyl Benzenes | 1.06 |
| C12 Terminal Alkenes | 1.03 |
| 2,3-Dimethyl Pentane | 0.96 |
| 3-Methylpentane | 0.95 |
| C13 Cycloalkanes | 0.94 |
| C13 Terminal Alkenes | 0.93 |
| Propylene Glycol | 0.92 |
| 2-Methylpentane | 0.91 |
| Branched C6 Alkanes | 0.91 |
| Branched C5 Alkanes | 0.88 |
| C14 Cycloalkanes | 0.88 |
| Iso-Pentane | 0.88 |
| Naphthalene | 0.87 |
| C14 Terminal Alkenes | 0.86 |
| 3-Methyl Hexane | 0.85 |
| 4-Methyl Hexane | 0.85 |
| Branched C7 Alkanes | 0.85 |
| C15 Cycloalkanes | 0.85 |
| Isobutane | 0.85 |
| C6 Cycloalkanes | 0.84 |
| Cyclohexane | 0.84 |
| C15 Terminal Alkenes | 0.80 |
| Ethanol | 0.79 |
| Phenol | 0.79 |
| Lumped C4-C5 Alkanes | 0.78 |
| C4 Ketones | 0.76 |
| Branched C12 Alkanes | 0.75 |
| 2,3-Dimethyl Butane | 0.74 |
| Tetralin | 0.73 |
| 4-Methyl Heptane | 0.72 |
| Branched C8 Alkanes | 0.72 |
| Branched C11 Alkanes | 0.72 |
| Isobutyl Alcohol | 0.72 |
| Iso-Octane | 0.70 |
| Lumped C6+ Alkanes | 0.70 |
| Branched C9 Alkanes | 0.68 |
| 4-Ethyl Heptane | 0.68 |
| n-Butane | 0.64 |
| n-Pentane | 0.64 |
| n-Hexane | 0.61 |
| 4-Propyl Heptane | 0.60 |
| Branched C10 Alkanes | 0.60 |
| Branched C13 Alkanes | 0.57 |
| n-Heptane | 0.48 |
| Methyl t-Butyl Ether | 0.47 |
| Branched C14 Alkanes | 0.44 |
| n-Octane | 0.41 |
| 2,2-Dimethyl Butane | 0.41 |
| Branched C15 Alkanes | 0.41 |
| Methanol | 0.40 |
| Acetone | 0.39 |
| Acetylene | 0.37 |
| Isopropyl Alcohol | 0.37 |
| Propane | 0.33 |
| n-Nonane | 0.29 |
| t-Butyl Alcohol | 0.29 |
| Benzene | 0.28 |
| n-Decane | 0.25 |
| n-Undecane | 0.21 |
| n-Dodecane | 0.19 |
| Neopentane | 0.19 |
| n-Tridecane | 0.17 |
| n-Tetradecane | 0.16 |
| Ethane | 0.147 |
| n-Pentadecane | 0.144 |
| Methane | 0.0102 |
| Benzaldehyde | -0.54 |
| Source: | Appendix VIII of the ARB’s “California Exhaust Emission Standards and Test Procedures for 1988 and Subsequent Model Passenger Cars, Light-Duty Trucks and Medium-Duty Vehicles,” as amended on September 22, 1993
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