# 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. step 0.5 available        
DATA:
  - type: formula 2
    wavelength_range: 0.31 2.5
    coefficients: 0 1.3322245 0.0084029848 0.28924161 0.034423972 1.15161734 88.4310532
  - type: tabulated k
    data: |
        0.310 3.8602E-06
        0.320 1.9324E-06
        0.334 8.4894E-07
        0.350 3.5061E-07
        0.365 1.4852E-07
        0.370 1.1107E-07
        0.380 7.4843E-08
        0.390 5.4562E-08
        0.400 4.1410E-08
        0.405 3.7938E-08
        0.420 3.3847E-08
        0.436 3.0873E-08
        0.460 2.6596E-08
        0.500 1.7604E-08
        0.546 1.2209E-08
        0.580 1.4829E-08
        0.620 1.5852E-08
        0.660 1.6874E-08
        0.700 1.3409E-08
        1.060 3.3758E-09
        1.530 1.1332E-07
        1.970 5.6389E-07
        2.325 4.6291E-06
        2.500 1.3514E-05
CONDITIONS:
    temperature: 293
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: 3.34e-06 1.16e-08 -1.8e-11 6.32e-07 7.21e-10 0.206
    nd: 1.63775
    Vd: 42.41
    glass_code: 638424.320
    glass_status: standard
    density:
      - value: 3196
    thermal_expansion:
      - temperature_range: 243 343
        value: 6.56e-06
      - temperature_range: 293 573
        value: 7.56e-06
    dPgF: -0.012
    resistance:
        climatic: 1.0
        stain: 1.0
        acid: 3.4
        alkali: 1.0
        phosphate: 1.0