# 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: |
             
DATA:
  - type: formula 2
    wavelength_range: 0.29 2.5
    coefficients: 0 1.26661442 0.00589278062 0.665919318 0.0197509041 1.1249612 78.8894174
  - type: tabulated k
    data: |
        0.290 4.2510E-06
        0.300 3.3485E-06
        0.310 2.6241E-06
        0.320 1.6394E-06
        0.334 8.9727E-07
        0.350 4.4617E-07
        0.365 2.3057E-07
        0.370 1.7763E-07
        0.380 1.1408E-07
        0.390 7.6813E-08
        0.400 6.2631E-08
        0.405 5.3969E-08
        0.420 3.7967E-08
        0.436 2.9455E-08
        0.460 1.9160E-08
        0.500 9.5781E-09
        0.546 5.2218E-09
        0.580 9.2541E-09
        0.620 7.9099E-09
        0.660 6.3120E-09
        0.700 6.6946E-09
        1.060 1.6913E-08
        1.530 1.9881E-07
        1.970 1.0191E-06
        2.325 7.3582E-06
        2.500 1.8323E-05
CONDITIONS:
    temperature: 293
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: 1.96e-06 9.65e-09 4.4e-12 4.91e-07 5.28e-10 0.161
    nd: 1.72916
    Vd: 54.5
    glass_code: 729545.402
    glass_status: standard
    density:
      - value: 4019
    thermal_expansion:
      - temperature_range: 243 343
        value: 5.81e-06
      - temperature_range: 293 573
        value: 6.91e-06
    dPgF: -0.0079
    resistance:
        climatic: 1.0
        stain: 0.0
        acid: 52.3
        alkali: 1.0
        phosphate: 3.3