# 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 
    wavelength_range: 0.32 2.5
    coefficients: 0 1.22718116 0.00602075682 0.420783743 0.0196862889 1.01284843 88.4370099
  - type: tabulated k
    data: |
        0.320 3.2787E-06
        0.334 1.5172E-06
        0.350 6.2625E-07
        0.365 2.8867E-07
        0.370 2.1945E-07
        0.380 1.2744E-07
        0.390 9.0090E-08
        0.400 6.5309E-08
        0.405 5.9358E-08
        0.420 5.0404E-08
        0.436 4.3704E-08
        0.460 3.5570E-08
        0.500 1.9214E-08
        0.546 1.3960E-08
        0.580 1.4829E-08
        0.620 1.9835E-08
        0.660 1.8993E-08
        0.700 1.3409E-08
        1.060 2.0305E-08
        1.530 1.4834E-07
        1.970 8.7327E-07
        2.325 5.2793E-06
        2.500 1.2419E-05
SPECS:
    n_absolute: false
    wavelength_vacuum: false
    temperature: 20.0 °C
    thermal_dispersion:
      - type: "Schott formula"
        coefficients: -2.36e-06 1.15e-08 1.11e-11 3.1e-07 2.78e-10 0.234
    nd: 1.64049
    Vd: 60.1
    glass_code: 640601.374
    glass_status: standard
    density: 3.74 g/cm<sup>3</sup>
    thermal_expansion:
      - temperature_range: -30 70 °C
        coefficient: 6.8e-06 K<sup>-1</sup>
      - temperature_range: 20 300 °C
        coefficient: 8.1e-06 K<sup>-1</sup>
    dPgF: -0.0017
    climatic_resistance: 4.0
    stain_resistance: 2.0
    acid_resistance: 53.2
    alkali_resistance: 4.3
    phosphate_resistance: 4.3
