# 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: 0.3 2.5
    coefficients: 0 0.991463823 0.00522730467 0.495982121 0.0172733646 0.987393925 98.3594579
  - type: tabulated k
    data: |
        0.300 3.7357E-06
        0.310 2.2721E-06
        0.320 1.3337E-06
        0.334 5.7913E-07
        0.350 2.2109E-07
        0.365 8.4315E-08
        0.370 7.2874E-08
        0.380 4.9377E-08
        0.390 3.6533E-08
        0.400 2.4424E-08
        0.405 2.2104E-08
        0.420 1.8849E-08
        0.436 1.8160E-08
        0.460 1.6196E-08
        0.500 9.5781E-09
        0.546 6.9658E-09
        0.580 9.2541E-09
        0.620 1.3863E-08
        0.660 1.2643E-08
        0.700 1.1169E-08
        1.060 1.0137E-08
        1.530 9.8390E-08
        1.970 5.9139E-07
        2.325 3.3028E-06
        2.500 7.6998E-06
SPECS:
    n_is_absolute: false
    λ_is_vacuum: false
    temperature: 20.0 °C
    coefficients_of_thermal_dispersion: 3.5e-06 1.22e-08 6.38e-11 2.46e-07 -3.34e-11 0.278
    n_d: 1.58913
    V_d: 61.27
    glass_code: 589613.330
    glass_status: standard
    density: 3.3 g/cm<sup>3</sup>
    coefficient_of_thermal_expansion_1: 5.5e-06 K<sup>-1</sup>
    coefficient_of_thermal_expansion_2: 6.5e-06 K<sup>-1</sup>
    ΔP_gF: -0.0007
    climatic_resistance: 3.0
    stain_resistance: 1.0
    acid_resistance: 4.4
    alkali_resistance: 2.0
    phosphate_resistance: 1.3
