# 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 1.84568806 0.00988495571 0.3390016 0.0378097402 1.32418921 97.841543
  - 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 2.0826E-08
        0.546 1.3960E-08
        0.580 1.4829E-08
        0.620 1.5852E-08
        0.660 1.4758E-08
        0.700 1.1169E-08
        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: 7.79e-06 1.1e-08 -2.03e-11 7.86e-07 8.78e-10 0.215
    nd: 1.81
    Vd: 40.93
    glass_code: 810409.458
    glass_status: standard
    density: 4.579 g/cm<sup>3</sup>
    thermal_expansion:
      - temperature_range: -30 70 °C
        coefficient: 6.01e-06 K<sup>-1</sup>
      - temperature_range: 20 300 °C
        coefficient: 7.4e-06 K<sup>-1</sup>
    dPgF: -0.008
    climatic_resistance: 1.0
    stain_resistance: 1.0
    acid_resistance: 51.3
    alkali_resistance: 1.0
    phosphate_resistance: 2.2
