# 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: 0.29 2.5
    coefficients: 0 1.23679889 0.00610105538 0.445051837 0.0201388334 1.01745888 90.638038
  - type: tabulated k
    data: |
        0.300 3.9488E-06
        0.310 2.1691E-06
        0.320 1.2230E-06
        0.334 5.9762E-07
        0.350 2.6969E-07
        0.365 1.3018E-07
        0.370 1.0205E-07
        0.380 6.8426E-08
        0.390 4.9384E-08
        0.400 3.8782E-08
        0.405 3.5286E-08
        0.420 3.1108E-08
        0.436 2.8038E-08
        0.460 2.3617E-08
        0.500 1.2784E-08
        0.546 8.7117E-09
        0.580 9.2541E-09
        0.620 9.8924E-09
        0.660 8.4202E-09
        0.700 6.6946E-09
        1.060 6.7549E-09
        1.530 1.3831E-07
        1.970 9.2393E-07
        2.325 5.2191E-06
        2.500 1.1906E-05
SPECS:
    n_is_absolute: false
    λ_is_vacuum: false
    temperature: 20.0 °C
    coefficients_of_thermal_dispersion: -3.4e-06 1.17e-08 2.38e-11 4.96e-07 4.44e-10 0.107
    n_d: 1.6516
    V_d: 58.52
    glass_code: 652585.384
    glass_status: standard
    density: 3.84 g/cm<sup>3</sup>
    coefficient_of_thermal_expansion_1: 7.1e-06 K<sup>-1</sup>
    coefficient_of_thermal_expansion_2: 8.2e-06 K<sup>-1</sup>
    ΔP_gF: -0.0021
    climatic_resistance: 3.0
    stain_resistance: 2.0
    acid_resistance: 53.3
    alkali_resistance: 3.3
    phosphate_resistance: 4.3
