# 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: "suitable for precision molding        "
DATA:
  - type: formula 2 
    wavelength_range: 0.334 2.5
    coefficients: 0 1.85543101 0.0100328203 0.315854649 0.0387095168 1.28561839 94.5421507
  - type: tabulated k
    data: |
        0.334 3.7280E-06
        0.350 1.1696E-06
        0.365 5.0050E-07
        0.370 3.8689E-07
        0.380 2.2538E-07
        0.390 1.4467E-07
        0.400 1.0616E-07
        0.405 9.3555E-08
        0.420 6.8574E-08
        0.436 5.2324E-08
        0.460 3.7071E-08
        0.500 1.9214E-08
        0.546 1.0459E-08
        0.580 1.1111E-08
        0.620 9.8924E-09
        0.660 1.0531E-08
        0.700 8.9305E-09
        1.060 6.7549E-09
        1.530 9.3423E-08
        1.970 8.0161E-07
        2.325 4.6985E-06
        2.500 1.2807E-05
SPECS:
    n_absolute: false
    wavelength_vacuum: false
    temperature: 20.0 °C
    thermal_dispersion:
      - type: "Schott formula"
        coefficients: 7.87e-06 1.09e-08 -1.56e-11 7.58e-07 8.92e-10 0.218
    nd: 1.8061
    Vd: 40.9
    glass_code: 806409.454
    glass_status: standard
    density: 4.538 g/cm<sup>3</sup>
    thermal_expansion:
      - temperature_range: -30 70 °C
        coefficient: 6.04e-06 K<sup>-1</sup>
      - temperature_range: 20 300 °C
        coefficient: 7.27e-06 K<sup>-1</sup>
    dPgF: -0.0079
    climatic_resistance: 1.0
    stain_resistance: 1.0
    acid_resistance: 51.4
    alkali_resistance: 1.0
    phosphate_resistance: 2.2
