# 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: "inquiry glass        "
DATA:
  - type: formula 2 
    range: 0.37 2.325
    coefficients: 0 1.78922056 0.0135163537 0.328427448 0.0622729599 2.01639441 168.014713
  - type: tabulated k
    data: |
        0.370 4.6074E-06
        0.380 1.6768E-06
        0.390 8.1179E-07
        0.400 5.0990E-07
        0.405 4.2349E-07
        0.420 2.8171E-07
        0.436 2.0932E-07
        0.460 1.5427E-07
        0.500 9.8478E-08
        0.546 5.2937E-08
        0.580 3.7298E-08
        0.620 3.3838E-08
        0.660 2.5363E-08
        0.700 2.4646E-08
        1.060 4.0734E-08
        1.530 2.4412E-08
        1.970 3.2165E-07
        2.325 1.2903E-06
SPECS:
    n_is_absolute: false
    λ_is_vacuum: false
    temperature: 20.0 °C
    coefficients_of_thermal_dispersion: -5.26e-06 7.41e-09 -1.89e-11 1.02e-06 1.62e-09 0.288
    n_d: 1.80518
    V_d: 25.39
    glass_code: 805254.337
    glass_status: special
    density: 3.37 g/cm<sup>3</sup>
    coefficient_of_thermal_expansion_1: 9e-06 K<sup>-1</sup>
    coefficient_of_thermal_expansion_2: 1.03e-05 K<sup>-1</sup>
    ΔP_gF: 0.0148
    climatic_resistance: 1.0
    stain_resistance: 0.0
    acid_resistance: 2.0
    alkali_resistance: 1.0
    phosphate_resistance: 1.0
