# 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: 0.42 2.5
    coefficients: 0 2.3330067 0.0168838419 0.452961396 0.0716086325 1.25172339 118.707479
  - type: tabulated k
    data: |
        0.420 4.0050E-06
        0.436 1.9239E-06
        0.460 1.0149E-06
        0.500 3.9544E-07
        0.546 1.0754E-07
        0.580 5.0533E-08
        0.620 2.9827E-08
        0.660 2.3237E-08
        0.700 1.5652E-08
        1.060 6.7549E-09
        1.530 4.8947E-08
        1.970 3.8800E-07
        2.325 1.8388E-06
        2.500 4.6140E-06
CONDITIONS:
    temperature: 293
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: 1.55e-05 2.3e-08 -3.46e-11 2.76e-06 2.93e-09 0.297
    nd: 2.0052
    Vd: 21
    glass_status: standard
    density:
      - value: 6194
    thermal_expansion:
      - temperature_range: 243 343
        value: 8.43e-06
      - temperature_range: 293 573
        value: 9.67e-06
    dPgF: 0.0308
    resistance:
        climatic: 1.0
        stain: 5.0
        acid: 53.3
        alkali: 2.3
        phosphate: 2.3