# 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 
    range: 0.39 2.5
    coefficients: 0 2.0245976 0.0147053225 0.470187196 0.0692998276 2.59970433 161.817601
  - type: tabulated k
    data: |
        0.390 4.8564E-06
        0.400 2.1833E-06
        0.405 1.6879E-06
        0.420 9.2667E-07
        0.436 6.4123E-07
        0.460 4.4089E-07
        0.500 2.9655E-07
        0.546 1.6391E-07
        0.580 1.1423E-07
        0.620 8.4679E-08
        0.660 6.8326E-08
        0.700 5.1846E-08
        1.060 3.0504E-08
        1.530 1.3330E-07
        1.970 8.5169E-07
        2.325 3.3028E-06
        2.500 4.6140E-06
SPECS:
    n_is_absolute: false
    λ_is_vacuum: false
    temperature: 20.0 °C
    coefficients_of_thermal_dispersion: -4.3e-06 1.15e-08 4.31e-11 9.62e-07 1.62e-09 0.322
    n_d: 1.92286
    V_d: 20.88
    glass_code: 923209.400
    glass_status: standard
    density: 3.996 g/cm<sup>3</sup>
    coefficient_of_thermal_expansion_1: 5.9e-06 K<sup>-1</sup>
    coefficient_of_thermal_expansion_2: 6.83e-06 K<sup>-1</sup>
    ΔP_gF: 0.0307
    climatic_resistance: 1.0
    stain_resistance: 0.0
    acid_resistance: 1.0
    alkali_resistance: 1.0
    phosphate_resistance: 1.0
