# 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 1.17365704 0.00577031797 0.588992398 0.0200401678 0.978014394 95.4873482
  - type: tabulated k
    data: |
        0.320 4.6908E-06
        0.334 2.0169E-06
        0.350 8.6512E-07
        0.365 3.6564E-07
        0.370 2.7762E-07
        0.380 1.6845E-07
        0.390 1.0351E-07
        0.400 7.8782E-08
        0.405 7.5659E-08
        0.420 6.5763E-08
        0.436 5.9548E-08
        0.460 4.7621E-08
        0.500 2.2439E-08
        0.546 1.5713E-08
        0.580 1.8555E-08
        0.620 2.3825E-08
        0.660 2.3237E-08
        0.700 1.5652E-08
        1.060 2.7101E-08
        1.530 1.2330E-07
        1.970 1.0191E-06
        2.325 4.9832E-06
        2.500 1.0419E-05
SPECS:
    n_absolute: false
    wavelength_vacuum: false
    temperature: 20.0 °C
    thermal_dispersion:
      - type: "Schott formula"
        coefficients: -5.67e-06 8.27e-09 1.27e-12 5.25e-07 6.3e-10 0.162
    nd: 1.6779
    Vd: 55.2
    glass_code: 678552.410
    glass_status: standard
    density: 4.1 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: 9.3e-06 K<sup>-1</sup>
    dPgF: -0.0024
    climatic_resistance: 3.0
    stain_resistance: 1.0
    acid_resistance: 53.3
    alkali_resistance: 3.3
    phosphate_resistance: 4.3
