# 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: 0.32 2.5
    coefficients: 0 1.44116999 0.00680933877 0.571749501 0.0222291824 1.16605226 80.9379555
  - type: tabulated k
    data: |
        0.320 2.8657E-06
        0.334 1.3534E-06
        0.350 6.0687E-07
        0.365 2.8867E-07
        0.370 2.3372E-07
        0.380 1.5462E-07
        0.390 1.0351E-07
        0.400 7.8782E-08
        0.405 6.2060E-08
        0.420 4.0721E-08
        0.436 3.0873E-08
        0.460 2.0644E-08
        0.500 9.5781E-09
        0.546 6.9658E-09
        0.580 9.2541E-09
        0.620 1.1877E-08
        0.660 1.0531E-08
        0.700 8.9305E-09
        1.060 1.6913E-08
        1.530 1.2330E-07
        1.970 1.0191E-06
        2.325 6.9686E-06
        2.500 1.8323E-05
SPECS:
    n_is_absolute: false
    λ_is_vacuum: false
    temperature: 20.0 °C
    coefficients_of_thermal_dispersion: 2.63e-06 1.11e-08 -3.92e-12 5.02e-07 5.08e-10 0.188
    n_d: 1.75393
    V_d: 52.27
    glass_code: 754523.422
    glass_status: special
    density: 4.216 g/cm<sup>3</sup>
    coefficient_of_thermal_expansion_1: 5.8e-06 K<sup>-1</sup>
    coefficient_of_thermal_expansion_2: 7.02e-06 K<sup>-1</sup>
    ΔP_gF: -0.0086
    climatic_resistance: 1.0
    stain_resistance: 1.0
    acid_resistance: 51.0
    alkali_resistance: 1.0
    phosphate_resistance: 2.0
