# 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: |
    obsolet        
DATA:
  - type: formula 2
    wavelength_range: 0.25 2.5
    coefficients: 0 0.67071081 0.00449192312 0.433322857 0.0132812976 0.877379057 95.8899878
  - type: tabulated k
    data: |
        0.250 7.9617E-10
        0.260 8.2802E-10
        0.270 8.5987E-10
        0.280 8.9171E-10
        0.290 9.2356E-10
        0.300 9.5541E-10
        0.310 9.8725E-10
        0.320 1.0191E-09
        0.334 1.0637E-09
        0.350 1.1146E-09
        0.365 1.1624E-09
        0.370 1.1783E-09
        0.380 1.2102E-09
        0.390 1.2420E-09
        0.400 1.2739E-09
        0.405 1.2898E-09
        0.420 1.3376E-09
        0.436 1.3885E-09
        0.460 1.4650E-09
        0.500 1.5923E-09
        0.546 1.7388E-09
        0.580 1.8471E-09
        0.620 1.9745E-09
        0.660 2.1019E-09
        0.700 2.2293E-09
        1.060 1.8866E-09
        1.530 2.7232E-09
        1.970 8.8506E-08
        2.325 1.6816E-06
CONDITIONS:
    temperature: 293
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: 2.06e-05 2.51e-08 -2.47e-11 3.12e-07 4.22e-10 0.16
    nd: 1.45844E+00
    Vd: 6.78300E+01
    glass_code: 458678.220
    glass_status: preferred
    density:
      - value: 2200
    thermal_expansion:
      - temperature_range: 243 343
        value: 5e-07
      - temperature_range: 293 573
        value: 5.5e-07
    dPgF: -0.0021
    resistance:
        climatic: 1.0
        stain: 0.0
        acid: 1.0
        alkali: 1.0
        phosphate: 1.0