# 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: 0.3 2.5
    coefficients: 0 1.12365662 0.00644742752 0.309276848 0.0222284402 0.881511957 107.297751
  - type: tabulated k
    data: |
        0.300 2.5394E-06
        0.310 1.2215E-06
        0.320 5.7257E-07
        0.334 2.1098E-07
        0.350 8.0850E-08
        0.365 3.6587E-08
        0.370 2.7405E-08
        0.380 2.0740E-08
        0.390 1.4987E-08
        0.400 1.2796E-08
        0.405 1.2956E-08
        0.420 1.3436E-08
        0.436 1.5351E-08
        0.460 1.4716E-08
        0.500 1.2784E-08
        0.546 8.7117E-09
        0.580 9.2541E-09
        0.620 9.8924E-09
        0.660 1.0531E-08
        0.700 6.6946E-09
        1.060 1.3523E-08
        1.530 6.8664E-08
        1.970 6.3982E-07
        2.325 2.4209E-06
        2.500 4.2801E-06
SPECS:
    n_absolute: false
    wavelength_vacuum: false
    temperature: 20.0 °C
    thermal_dispersion:
      - type: "Schott formula"
        coefficients: 1.86e-07 1.29e-08 -1.87e-11 5.25e-07 5.46e-10 0.182
    nd: 1.5725
    Vd: 57.55
    glass_code: 573576.319
    glass_status: standard
    density: 3.19 g/cm<sup>3</sup>
    thermal_expansion:
      - temperature_range: -30 70 °C
        coefficient: 7.6e-06 K<sup>-1</sup>
      - temperature_range: 20 300 °C
        coefficient: 8.6e-06 K<sup>-1</sup>
    dPgF: 0.0002
    climatic_resistance: 2.0
    stain_resistance: 1.0
    acid_resistance: 3.3
    alkali_resistance: 1.2
    phosphate_resistance: 2.0
