# 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: 0.4 2.5
    coefficients: 0 1.34611327 0.0097174385 0.142428018 0.0501911619 0.900477176 111.959703
  - type: tabulated k
    data: |
        0.400 4.0984E-06
        0.405 3.1042E-06
        0.420 1.4035E-06
        0.436 6.8146E-07
        0.460 2.6930E-07
        0.500 1.0867E-07
        0.546 6.0119E-08
        0.580 4.2958E-08
        0.620 3.3838E-08
        0.660 2.7490E-08
        0.700 1.5652E-08
        1.060 6.7549E-09
        1.530 1.0336E-07
        1.970 2.1742E-06
        2.325 8.5257E-06
        2.500 1.2807E-05
SPECS:
    n_is_absolute: false
    λ_is_vacuum: false
    temperature: 20.0 °C
    coefficients_of_thermal_dispersion: -8.15e-06 1.34e-08 -9.22e-12 8.57e-07 8.26e-10 0.243
    n_d: 1.59655
    V_d: 39.89
    glass_code: 597399.330
    glass_status: special
    density: 3.3 g/cm<sup>3</sup>
    coefficient_of_thermal_expansion_1: 1.065e-05 K<sup>-1</sup>
    coefficient_of_thermal_expansion_2: 1.142e-05 K<sup>-1</sup>
    ΔP_gF: 0.0036
    climatic_resistance: 2.0
    stain_resistance: 2.0
    acid_resistance: 3.4
    alkali_resistance: 2.2
    phosphate_resistance: 3.0
