# 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. step 0.5 available        
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 4.1698E-06
        0.380 1.4403E-06
        0.390 5.7357E-07
        0.400 2.5268E-07
        0.405 1.9443E-07
        0.420 9.7020E-08
        0.436 5.3766E-08
        0.460 3.2573E-08
        0.500 1.5996E-08
        0.546 5.2218E-09
        0.580 5.5469E-09
        0.620 5.9295E-09
        0.660 6.3120E-09
        0.700 4.4608E-09
        1.060 3.3758E-09
        1.530 2.9309E-08
        1.970 3.1505E-07
        2.325 1.3345E-06
        2.500 1.7956E-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