# 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: |
    suitable for precision molding        
DATA:
  - type: formula 2
    wavelength_range: 0.365 2.5
    coefficients: 0 1.55370411 0.011658267 0.206332561 0.0582087757 1.39708831 130.748028
  - type: tabulated k
    data: |
        0.365 3.7398E-06
        0.370 2.2343E-06
        0.380 8.8779E-07
        0.390 4.2517E-07
        0.400 2.5268E-07
        0.405 2.0951E-07
        0.420 1.4086E-07
        0.436 1.0072E-07
        0.460 7.5105E-08
        0.500 4.5199E-08
        0.546 2.4504E-08
        0.580 2.4158E-08
        0.620 3.1832E-08
        0.660 3.3885E-08
        0.700 2.6900E-08
        1.060 1.0137E-08
        1.530 1.1332E-07
        1.970 1.0191E-06
        2.325 4.1601E-06
        2.500 6.3543E-06
CONDITIONS:
    temperature: 293
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: -4.27e-06 8.16e-09 -2e-11 9.02e-07 1.22e-09 0.272
    nd: 1.68893
    Vd: 31.25
    glass_code: 689313.290
    glass_status: standard
    density:
      - value: 2898
    thermal_expansion:
      - temperature_range: 243 343
        value: 9.41e-06
      - temperature_range: 293 573
        value: 1.11e-05
    dPgF: 0.0079
    resistance:
        climatic: 1.0
        stain: 0.0
        acid: 1.0
        alkali: 1.2
        phosphate: 1.0