# 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="https://refractiveindex.info/download/data/2017/schott_2017-01-20b.agf">SCHOTT Zemax catalog 2017-01-20b</a> (obtained from <a href="https://www.schott.com/en-us/products/optical-glass-p1000267/downloads/">http://www.schott.com</a>)<br>See also <a href="https://refractiveindex.info/download/data/2017/schott_2017-01-20.pdf">SCHOTT glass data sheets</a>
COMMENTS: |
    inquiry glass        
DATA:
  - type: formula 2
    wavelength_range: 0.39 2.5
    coefficients: 0 1.88742326 0.0145939341 0.360534025 0.0648198946 2.26189313 176.062211
  - type: tabulated k
    data: |
        0.390 4.3531E-06
        0.400 2.0492E-06
        0.405 1.5958E-06
        0.420 8.7424E-07
        0.436 5.5580E-07
        0.460 3.2673E-07
        0.500 1.8547E-07
        0.546 8.0023E-08
        0.580 5.4331E-08
        0.620 5.8078E-08
        0.660 6.6157E-08
        0.700 5.4128E-08
        1.060 3.0504E-08
        1.530 4.8947E-08
        1.970 2.5598E-07
        2.325 1.7445E-06
        2.500 2.5044E-06
CONDITIONS:
    temperature: 293
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: -3.63e-06 8.61e-09 -9.98e-12 1.1e-06 1.69e-09 0.293
    nd: 1.84666
    Vd: 23.62
    glass_code: 847236.355
    glass_status: special
    density:
      - value: 3550
    thermal_expansion:
      - temperature_range: 243 343
        value: 8.7e-06
      - temperature_range: 293 573
        value: 1e-05
    dPgF: 0.0177
    resistance:
        climatic: 1.0
        stain: 0.0
        acid: 1.3
        alkali: 1.0
        phosphate: 1.3