# 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: 0.37 2.5
    coefficients: 0 1.77931763 0.0133714182 0.338149866 0.0617533621 2.08734474 174.01759
  - type: tabulated k
    data: |
        0.370 4.4951E-06
        0.380 1.5269E-06
        0.390 6.7409E-07
        0.400 3.7994E-07
        0.405 3.0388E-07
        0.420 1.8772E-07
        0.436 1.3700E-07
        0.460 1.0311E-07
        0.500 6.4970E-08
        0.546 3.3339E-08
        0.580 2.9778E-08
        0.620 3.9870E-08
        0.660 4.6735E-08
        0.700 3.5939E-08
        1.060 3.3758E-09
        1.530 9.3423E-08
        1.970 8.3017E-07
        2.325 3.5378E-06
        2.500 4.5433E-06
SPECS:
    n_is_absolute: false
    λ_is_vacuum: false
    temperature: 20.0 °C
    coefficients_of_thermal_dispersion: -4.93e-06 7.02e-09 -2.4e-11 9.84e-07 1.54e-09 0.29
    n_d: 1.80518
    V_d: 25.36
    glass_code: 805254.337
    glass_status: standard
    density: 3.369 g/cm<sup>3</sup>
    coefficient_of_thermal_expansion_1: 9.03e-06 K<sup>-1</sup>
    coefficient_of_thermal_expansion_2: 1.034e-05 K<sup>-1</sup>
    ΔP_gF: 0.0146
    climatic_resistance: 1.0
    stain_resistance: 0.0
    acid_resistance: 2.0
    alkali_resistance: 1.0
    phosphate_resistance: 1.0
