# 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: 0.365 2.5
    coefficients: 0 1.55370411 0.011658267 0.206332561 0.0582087757 1.39708831 130.748028
  - type: tabulated k
    data: |
        0.365 3.7398E-06
        0.370 2.2343E-06
        0.380 8.8779E-07
        0.390 4.2517E-07
        0.400 2.5268E-07
        0.405 2.0951E-07
        0.420 1.4086E-07
        0.436 1.0072E-07
        0.460 7.5105E-08
        0.500 4.5199E-08
        0.546 2.4504E-08
        0.580 2.4158E-08
        0.620 3.1832E-08
        0.660 3.3885E-08
        0.700 2.6900E-08
        1.060 1.0137E-08
        1.530 1.1332E-07
        1.970 1.0191E-06
        2.325 4.1601E-06
        2.500 6.3543E-06
SPECS:
    n_is_absolute: false
    λ_is_vacuum: false
    temperature: 20.0 °C
    coefficients_of_thermal_dispersion: -4.27e-06 8.16e-09 -2e-11 9.02e-07 1.22e-09 0.272
    n_d: 1.68893
    V_d: 31.25
    glass_code: 689313.290
    glass_status: standard
    density: 2.898 g/cm<sup>3</sup>
    coefficient_of_thermal_expansion_1: 9.41e-06 K<sup>-1</sup>
    coefficient_of_thermal_expansion_2: 1.11e-05 K<sup>-1</sup>
    ΔP_gF: 0.0079
    climatic_resistance: 1.0
    stain_resistance: 0.0
    acid_resistance: 1.0
    alkali_resistance: 1.2
    phosphate_resistance: 1.0
