# 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: |
    lead containing glass type        
DATA:
  - type: formula 2
    wavelength_range: 0.37 2.5
    coefficients: 0 1.70579259 0.0133874699 0.344223052 0.0579561608 1.09601828 121.616024
  - type: tabulated k
    data: |
        0.370 5.4237E-06
        0.380 2.7852E-06
        0.390 1.1068E-06
        0.400 4.9104E-07
        0.405 3.5379E-07
        0.420 1.4086E-07
        0.436 7.1186E-08
        0.460 3.8574E-08
        0.500 1.7604E-08
        0.546 1.0459E-08
        0.580 1.1111E-08
        0.620 1.1877E-08
        0.660 1.4758E-08
        0.700 1.1169E-08
        1.060 1.0137E-08
        1.530 5.3868E-08
        1.970 5.2286E-07
        2.325 2.0310E-06
        2.500 2.8383E-06
CONDITIONS:
    temperature: 293
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: 6.02e-06 1.7e-08 -2.61e-11 1.63e-06 1.59e-09 0.269
    nd: 1.7847
    Vd: 26.08
    glass_code: 785261.492
    glass_status: standard
    density:
      - value: 4920
    thermal_expansion:
      - temperature_range: 243 343
        value: 7.9e-06
      - temperature_range: 293 573
        value: 8.8e-06
    dPgF: 0.0098
    resistance:
        climatic: 1.0
        stain: 1.0
        acid: 3.2
        alkali: 2.2
        phosphate: 3.2