# 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/ohara_2017-11-30.agf">OHARA Zemax catalog 2017-11-30</a> (obtained from <a href="http://www.ohara-inc.co.jp/en/product/optical/list/">http://www.ohara-inc.co.jp</a>)<br>See also <a href="https://refractiveindex.info/download/data/2017/ohara_2017-11-30.pdf">OHARA glass data sheets</a>
COMMENTS: |
    Recommended - The unique relative partial dispersion
DATA:
  - type: formula 2
    wavelength_range: 0.3 2.4
    coefficients: 0 0.761242785 0.00321174095 0.747033375 0.0140234423 0.938928947 139.52353
  - type: tabulated k
    data: |
        0.310 4.2302E-06
        0.320 2.6734E-06
        0.330 1.6181E-06
        0.340 8.8881E-07
        0.350 4.8561E-07
        0.360 2.4823E-07
        0.370 1.2634E-07
        0.380 6.1092E-08
        0.390 3.7468E-08
        0.400 2.8778E-08
        0.420 3.6968E-08
        0.440 3.8729E-08
        0.460 2.9402E-08
        0.480 2.2987E-08
        0.500 1.5947E-08
        0.550 8.7623E-09
        0.600 1.4345E-08
        0.650 2.0732E-08
        0.700 2.2326E-08
        0.800 3.1911E-08
        0.900 3.5900E-08
        1.000 3.1895E-08
        1.200 2.8691E-08
        1.400 3.3473E-08
        1.600 3.8255E-08
        1.800 7.1799E-08
        2.000 1.2784E-07
        2.200 1.9364E-07
        2.400 3.2747E-07
CONDITIONS:
    temperature: 298
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: -1.65e-05 2.94e-09 -1.11e-12 4.25e-07 3.23e-10 0.176
    nd: 1.595220
    Vd: 67.735723
    density:
      - value: 4170
    thermal_expansion:
      - temperature_range: 243 343
        value: 1.17e-05
    dPgF: 0.0123
    resistance:
        climatic: 2.0
        acid: 51.3
        phosphate: 4.1