# this file is part of refractiveindex.info database
# refractiveindex.info database is in the public domain
# copyright and related rights waived via CC0 1.0

REFERENCES: "<a href=\"http://refractiveindex.info/download/data/2017/schott_2017-01-20b.agf\">SCHOTT Zemax catalog 2017-01-20b</a> (obtained from <a href=\"http://www.schott.com/advanced_optics/english/download/\">http://www.schott.com</a>)<br>See also <a href=\"http://refractiveindex.info/download/data/2017/schott_2017-01-20.pdf\">SCHOTT glass data sheets</a>"
COMMENTS: "         "
DATA:
  - type: formula 2 
    range: 0.35 2.5
    coefficients: 0 1.93502827 0.0104001413 0.23662935 0.0447505292 1.26291344 87.437569
  - type: tabulated k
    data: |
        0.350 4.3583E-06
        0.365 1.3988E-06
        0.370 1.0217E-06
        0.380 5.9789E-07
        0.390 3.9068E-07
        0.400 2.6830E-07
        0.405 2.2477E-07
        0.420 1.5579E-07
        0.436 1.1572E-07
        0.460 7.5105E-08
        0.500 4.0295E-08
        0.546 2.0982E-08
        0.580 1.6691E-08
        0.620 1.3863E-08
        0.660 1.0531E-08
        0.700 1.1169E-08
        1.060 2.0305E-08
        1.530 1.9881E-07
        1.970 1.0191E-06
        2.325 6.2460E-06
        2.500 1.8323E-05
SPECS:
    n_is_absolute: false
    λ_is_vacuum: false
    temperature: 20.0 °C
    coefficients_of_thermal_dispersion: 4.77e-06 1.14e-08 -2.68e-12 6.62e-07 8.84e-10 0.234
    n_d: 1.8061
    V_d: 40.61
    glass_code: 806406.426
    glass_status: standard
    density: 4.26 g/cm<sup>3</sup>
    coefficient_of_thermal_expansion_1: 5.49e-06 K<sup>-1</sup>
    coefficient_of_thermal_expansion_2: 6.66e-06 K<sup>-1</sup>
    ΔP_gF: -0.0052
    climatic_resistance: 1.0
    stain_resistance: 1.0
    acid_resistance: 51.3
    alkali_resistance: 1.0
    phosphate_resistance: 2.0
