# 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: 0.35 2.5
    coefficients: 0 1.55624873 0.0102012744 0.239769276 0.0469277969 0.947887658 69.8370722
  - type: tabulated k
    data: |
        0.350 6.1514E-06
        0.365 1.6106E-06
        0.370 1.1396E-06
        0.380 6.5889E-07
        0.390 4.0781E-07
        0.400 2.6830E-07
        0.405 2.2477E-07
        0.420 1.2608E-07
        0.436 7.9979E-08
        0.460 4.3090E-08
        0.500 2.2439E-08
        0.546 1.5713E-08
        0.580 1.6691E-08
        0.620 1.5852E-08
        0.660 1.6874E-08
        0.700 1.5652E-08
        1.060 2.0305E-08
        1.530 3.0134E-07
        1.970 1.3214E-06
        2.325 8.9102E-06
        2.500 2.5615E-05
SPECS:
    n_is_absolute: false
    λ_is_vacuum: false
    temperature: 20.0 °C
    coefficients_of_thermal_dispersion: 4.36e-06 1.32e-08 -1.81e-11 6.86e-07 6.81e-10 0.253
    n_d: 1.696
    V_d: 36.29
    glass_code: 696363.384
    glass_status: special
    density: 3.836 g/cm<sup>3</sup>
    coefficient_of_thermal_expansion_1: 5.18e-06 K<sup>-1</sup>
    coefficient_of_thermal_expansion_2: 6.22e-06 K<sup>-1</sup>
    ΔP_gF: -0.005
    climatic_resistance: 4.0
    stain_resistance: 1.0
    acid_resistance: 53.3
    alkali_resistance: 4.3
    phosphate_resistance: 4.3
