# 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 1.85744228 0.00982397191 0.294098729 0.0384309138 1.16615417 89.3984634
  - type: tabulated k
    data: |
        0.350 2.1904E-06
        0.365 9.0220E-07
        0.370 6.8288E-07
        0.380 4.1427E-07
        0.390 2.6159E-07
        0.400 1.7731E-07
        0.405 1.5023E-07
        0.420 1.1147E-07
        0.436 8.5873E-08
        0.460 5.6725E-08
        0.500 3.2154E-08
        0.546 1.7467E-08
        0.580 1.4829E-08
        0.620 1.5852E-08
        0.660 1.2643E-08
        0.700 1.3409E-08
        1.060 2.0305E-08
        1.530 9.8390E-08
        1.970 8.0161E-07
        2.325 4.8395E-06
        2.500 1.4583E-05
SPECS:
    n_is_absolute: false
    λ_is_vacuum: false
    temperature: 20.0 °C
    coefficients_of_thermal_dispersion: 8.72e-06 1.12e-08 -1.38e-11 7.81e-07 9.48e-10 0.212
    n_d: 1.79952
    V_d: 42.37
    glass_code: 800424.443
    glass_status: special
    density: 4.431 g/cm<sup>3</sup>
    coefficient_of_thermal_expansion_1: 5.65e-06 K<sup>-1</sup>
    coefficient_of_thermal_expansion_2: 6.8e-06 K<sup>-1</sup>
    ΔP_gF: -0.0067
    climatic_resistance: 1.0
    stain_resistance: 2.0
    acid_resistance: 52.3
    alkali_resistance: 1.0
    phosphate_resistance: 3.3
