# 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: "inquiry glass. suitable for precision molding        "
DATA:
  - type: formula 2 
    wavelength_range: 0.32 2.5
    coefficients: 0 0.960316767 0.00531032986 0.340437227 0.0175073434 0.777865595 106.87533
  - type: tabulated k
    data: |
        0.320 4.6908E-06
        0.334 1.7656E-06
        0.350 5.6910E-07
        0.365 1.7523E-07
        0.370 1.2409E-07
        0.380 6.2043E-08
        0.390 3.0157E-08
        0.400 1.9243E-08
        0.405 1.9484E-08
        0.420 2.0205E-08
        0.436 1.8160E-08
        0.460 1.4716E-08
        0.500 7.9777E-09
        0.546 5.2218E-09
        0.580 7.3996E-09
        0.620 1.1877E-08
        0.660 1.6874E-08
        0.700 1.7897E-08
        1.060 2.0305E-08
        1.530 2.2934E-07
        1.970 3.7489E-06
        2.325 1.0260E-05
        2.500 1.5097E-05
SPECS:
    n_absolute: false
    wavelength_vacuum: false
    temperature: 20.0 °C
    thermal_dispersion:
      - type: "Schott formula"
        coefficients: -1.65e-05 -5.14e-10 -2.02e-11 4.11e-07 4.17e-10 0.208
    nd: 1.5269
    Vd: 66.22
    glass_code: 527662.283
    glass_status: special
    density: 2.827 g/cm<sup>3</sup>
    thermal_expansion:
      - temperature_range: -30 70 °C
        coefficient: 1.331e-05 K<sup>-1</sup>
      - temperature_range: 20 300 °C
        coefficient: 1.597e-05 K<sup>-1</sup>
    dPgF: 0.0084
    climatic_resistance: 2.0
    stain_resistance: 1.0
    acid_resistance: 51.0
    alkali_resistance: 4.3
    phosphate_resistance: 4.3
