Correction Factors, Ionization Energies, and Calibration Characteristics - RAE Systems Inc - #11

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Technical Note TN-106 rev 13d wh.01-05 Compound Name Synonym/Abbreviation CAS No. Formula C4H6O2 C2H3Br C2H3Cl C8H12 C6H9NO m.w. 111 (C8-C9) C8H10 C8H10 C8H10 9.8 C 10.6 C 11.7 C 1.5 0.6 1.0 1.2 + 0.4 2.0 + + 0.56 + + 0.8 ~1 0.50 + 0.43 + 0.40 + 0.57 + 0.59 + 0.69 0.45 + 0.62 + 1 1 1 1E+6 1E+6 1E+6 + + 1.0 0.6 + + IE TWA (eV) 9 .19 9.80 9 .99 9.83 10 5 5 0.1 ne 300 8 .56 8.56 8 .44 100 100 100 Varsol ­ see Mineral Spirits Vinyl actetate 108-05-4 Vinyl bromide Bromoethylene 593-60-2 Vinyl chloride Chloroethylene, VCM 75-01-4 Vinyl-1-cyclohexene, 4Butadiene dimer, 100-40-3 4-Ethenylcyclohexene Vinylidene chloride - see 1,1-Dicholorethene Vinyl-2-pyrrolidinone, 1NVP, N-vinylpyrrolidone, 1- 88-12-0 ethenyl-2-pyrrolidinone Viscor 120B - see Mineral Spirits - Viscor 120B Calibration Fluid V. M. & P. Naphtha Ligroin; Solvent naphtha; 64742-89-8 Varnish maker's & painter's naptha Xylene, m1,3-Dimethylbenzene 108-38-3 Xylene, o1,2-Dimethylbenzene 95-47-6 Xylene, p1,4-Dimethylbenzene 106-42-3 None Undetectable Therminol® is a registered Trademark of Solutia, Inc. 0.9 + Appendix I: Example of Automatic Calculation of Correction Factors, TLVs and Alarm Limits for Mixtures (Calculations performed using Excel version of this database, available on request) CF CF CF Mol. Conc Compound 9.8 eV 10.6 eV 11.7eV Frac ppm Benzene Toluene Hexane, nHeptane, nStyrene Acetone Isopropanol None Mixture Value: TLV Alarm Setpoint when Calibrated to Isobutylene: STEL Alarm Setpoint, same calibration 0.55 0.54 300 45 0.45 1.2 500 1 2.1 26 ppm 86 ppm 0.53 0.5 4.3 2.8 0.4 1.1 6 1 1.5 37 ppm 115 ppm 0.6 0.51 0.54 0.6 0.42 1.4 2.7 1 0.89 62 ppm 193 ppm 0.01 0.06 0.06 0.28 0.06 0.28 0.28 0.00 1.00 1 10 10 50 10 50 50 0 181 ppm TLV ppm 0.5 50 50 400 20 750 400 1 56 ppm STEL Ppm 2.5 150 150 500 40 1000 500 172 ppm 11 RAE Systems Inc. 3775 N. First St., San Jose, CA 95134-1708 USA Phone: +1.888.723.8823 Email: raesales@raesystems.com Web Site: www.raesystems.com