# 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: 0.35 2.5
    coefficients: 0 1.59222659 0.00920284626 0.103520774 0.0423530072 1.05174016 106.927374
  - type: tabulated k
    data: |
        0.350 3.1344E-06
        0.365 9.2773E-07
        0.370 6.4155E-07
        0.380 3.3195E-07
        0.390 1.8723E-07
        0.400 1.3415E-07
        0.405 1.2158E-07
        0.420 8.2721E-08
        0.436 6.2449E-08
        0.460 4.7621E-08
        0.500 2.8909E-08
        0.546 1.7467E-08
        0.580 1.2969E-08
        0.620 1.5852E-08
        0.660 1.6874E-08
        0.700 1.5652E-08
        1.060 3.3911E-08
        1.530 9.8390E-08
        1.970 5.9139E-07
        2.325 3.0751E-06
        2.500 6.3543E-06
SPECS:
    n_absolute: false
    wavelength_vacuum: false
    temperature: 20.0 °C
    thermal_dispersion:
      - type: "Schott formula"
        coefficients: 7.29e-07 1.17e-08 -1.5e-11 6.08e-07 7.66e-10 0.189
    nd: 1.65844
    Vd: 50.88
    glass_code: 658509.371
    glass_status: standard
    density: 3.71 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: 8e-06 K<sup>-1</sup>
    dPgF: -0.0007
    climatic_resistance: 2.0
    stain_resistance: 3.0
    acid_resistance: 52.2
    alkali_resistance: 2.2
    phosphate_resistance: 3.2
