# 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>"
DATA:
  - type: formula 2 
    range: 0.35 2.5
    coefficients: 0 1.91731106 0.00978600358 0.224019825 0.0386141473 1.22087075 84.6431265
  - type: tabulated k
    data: |
        0.350 2.8139E-06
        0.365 1.1552E-06
        0.370 8.6443E-07
        0.380 4.8441E-07
        0.390 2.9263E-07
        0.400 1.9203E-07
        0.405 1.6480E-07
        0.420 1.0278E-07
        0.436 7.2648E-08
        0.460 4.6109E-08
        0.500 1.9214E-08
        0.546 1.0459E-08
        0.580 1.2969E-08
        0.620 1.3863E-08
        0.660 1.2643E-08
        0.700 1.1169E-08
        1.060 2.3702E-08
        1.530 1.6847E-07
        1.970 9.4577E-07
        2.325 6.0758E-06
        2.500 1.6873E-05
SPECS:
    n_is_absolute: false
    λ_is_vacuum: false
    temperature: 20.0 °C
    coefficients_of_thermal_dispersion: 3.8e-06 1.1e-08 -1.83e-11 6.37e-07 8.03e-10 0.196
    n_d: 1.79457E+00
    V_d: 4.55300E+01
    glass_code: 795455.433
    glass_status: preferred
    density: 4.325 g/cm<sup>3</sup>
    coefficient_of_thermal_expansion_1: 5.89e-06 K<sup>-1</sup>
    coefficient_of_thermal_expansion_2: 6.98e-06 K<sup>-1</sup>
    ΔP_gF: -0.0075
    climatic_resistance: 1.0
    stain_resistance: 1.0
    acid_resistance: 51.2
    alkali_resistance: 1.0
    phosphate_resistance: 2.0
