# 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: 0.35 2.5
    coefficients: 0 1.5851495 0.00926681282 0.143559385 0.0424489805 1.08521269 105.613573
  - type: tabulated k
    data: |
        0.350 5.1305E-06
        0.365 1.3607E-06
        0.370 9.6691E-07
        0.380 5.0260E-07
        0.390 2.7701E-07
        0.400 1.6276E-07
        0.405 1.3583E-07
        0.420 8.2721E-08
        0.436 6.5355E-08
        0.460 4.9135E-08
        0.500 3.0530E-08
        0.546 1.7467E-08
        0.580 1.8555E-08
        0.620 1.7842E-08
        0.660 2.1114E-08
        0.700 1.3409E-08
        1.060 2.0305E-08
        1.530 9.8390E-08
        1.970 5.2286E-07
        2.325 2.8542E-06
        2.500 6.3543E-06
SPECS:
    n_is_absolute: false
    λ_is_vacuum: false
    temperature: 20.0 °C
    coefficients_of_thermal_dispersion: 3.79e-06 1.28e-08 -1.42e-11 5.84e-07 7.6e-10 0.22
    n_d: 1.67003
    V_d: 47.11
    glass_code: 670471.375
    glass_status: standard
    density: 3.745 g/cm<sup>3</sup>
    coefficient_of_thermal_expansion_1: 6.18e-06 K<sup>-1</sup>
    coefficient_of_thermal_expansion_2: 7.04e-06 K<sup>-1</sup>
    ΔP_gF: -0.0016
    climatic_resistance: 1.0
    stain_resistance: 0.0
    acid_resistance: 4.3
    alkali_resistance: 1.3
    phosphate_resistance: 1.0
