# 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: "suitable for precision molding        "
DATA:
  - type: formula 2 
    range: 0.32 2.5
    coefficients: 0 1.79653417 0.00927313493 0.311577903 0.0358201181 1.15981863 87.3448712
  - type: tabulated k
    data: |
        0.320 6.3301E-06
        0.334 2.5600E-06
        0.350 1.0236E-06
        0.365 5.0408E-07
        0.370 3.9675E-07
        0.380 2.5041E-07
        0.390 1.6719E-07
        0.400 1.2008E-07
        0.405 1.0469E-07
        0.420 7.4215E-08
        0.436 5.8100E-08
        0.460 4.0078E-08
        0.500 1.9214E-08
        0.546 1.0459E-08
        0.580 1.1111E-08
        0.620 1.1877E-08
        0.660 1.0531E-08
        0.700 8.9305E-09
        1.060 6.7549E-09
        1.530 1.2830E-07
        1.970 8.8770E-07
        2.325 5.4628E-06
        2.500 1.4887E-05
SPECS:
    n_is_absolute: false
    λ_is_vacuum: false
    temperature: 20.0 °C
    coefficients_of_thermal_dispersion: 8.17e-06 1.24e-08 -1.65e-11 7.11e-07 8.59e-10 0.21
    n_d: 1.78582
    V_d: 44.05
    glass_code: 786441.436
    glass_status: standard
    density: 4.36 g/cm<sup>3</sup>
    coefficient_of_thermal_expansion_1: 5.6e-06 K<sup>-1</sup>
    coefficient_of_thermal_expansion_2: 6.7e-06 K<sup>-1</sup>
    ΔP_gF: -0.0071
    climatic_resistance: 1.0
    stain_resistance: 2.0
    acid_resistance: 52.2
    alkali_resistance: 1.0
    phosphate_resistance: 3.0
