# 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: "was replaced by N-SF14"
DATA:
  - type: formula 2 
    wavelength_range: 0.39 2.5
    coefficients: 0 1.69182538 0.0133151542 0.285919934 0.0612647445 1.12595145 118.405242
  - type: tabulated k
    data: |
        0.390 3.9959E-06
        0.400 1.6208E-06
        0.405 1.1494E-06
        0.420 4.0255E-07
        0.436 1.9327E-07
        0.460 9.0600E-08
        0.500 4.1928E-08
        0.546 2.0982E-08
        0.580 1.8555E-08
        0.620 1.9835E-08
        0.660 2.1114E-08
        0.700 1.7897E-08
        1.060 1.0137E-08
        1.530 8.8461E-08
        1.970 5.2286E-07
        2.325 2.7461E-06
        2.500 4.0650E-06
SPECS:
    n_absolute: false
    wavelength_vacuum: false
    temperature: 20.0 °C
    thermal_dispersion:
      - type: "Schott formula"
        coefficients: 8.85e-06 1.81e-08 -4.12e-11 1.39e-06 1.53e-09 0.279
    nd: 1.76182
    Vd: 26.53
    glass_code: 762265.454
    glass_status: preferred
    density: 4.54 g/cm<sup>3</sup>
    thermal_expansion:
      - temperature_range: -30 70 °C
        coefficient: 6.6e-06 K<sup>-1</sup>
      - temperature_range: 20 300 °C
        coefficient: 7.4e-06 K<sup>-1</sup>
    dPgF: 0.0134
    climatic_resistance: 1.0
    stain_resistance: 0.0
    acid_resistance: 1.0
    alkali_resistance: 1.2
    phosphate_resistance: 1.0
