# 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. suitable for precision molding        
DATA:
  - type: formula 2
    wavelength_range: 0.37 2.5
    coefficients: 0 1.81651371 0.0143704198 0.428893641 0.0592801172 1.07186278 121.419942
  - type: tabulated k
    data: |
        0.370 5.4237E-06
        0.380 1.9589E-06
        0.390 9.9127E-07
        0.400 5.2905E-07
        0.405 4.0571E-07
        0.420 2.0164E-07
        0.436 1.0072E-07
        0.460 4.7621E-08
        0.500 2.2439E-08
        0.546 1.0459E-08
        0.580 1.1111E-08
        0.620 1.1877E-08
        0.660 1.2643E-08
        0.700 8.9305E-09
        1.060 1.0137E-08
        1.530 4.4030E-08
        1.970 4.5507E-07
        2.325 1.7445E-06
        2.500 2.2893E-06
CONDITIONS:
    temperature: 293
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: 7.26e-06 1.88e-08 -5.14e-11 1.96e-06 1.79e-09 0.276
    nd: 1.84666
    Vd: 23.83
    glass_code: 847238.551
    glass_status: standard
    density:
      - value: 5510
    thermal_expansion:
      - temperature_range: 243 343
        value: 8.3e-06
      - temperature_range: 293 573
        value: 9.2e-06
    dPgF: 0.0123
    resistance:
        climatic: 2.0
        stain: 5.0
        acid: 52.3
        alkali: 2.3
        phosphate: 4.3