# 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 0.809407286 0.00376072389 0.527007033 0.0135654895 0.909127704 142.503612
  - type: tabulated k
    data: |
        0.280 7.8132E-06
        0.290 5.8287E-06
        0.300 3.9647E-06
        0.310 2.5203E-06
        0.320 1.5224E-06
        0.330 8.6267E-07
        0.340 4.3972E-07
        0.350 2.2015E-07
        0.360 1.1098E-07
        0.370 5.6481E-08
        0.380 3.0392E-08
        0.390 2.4928E-08
        0.400 2.5567E-08
        0.420 3.6968E-08
        0.440 3.5190E-08
        0.460 2.9402E-08
        0.480 1.9146E-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 3.8312E-08
        0.900 3.5900E-08
        1.000 3.1895E-08
        1.200 2.8691E-08
        1.400 3.3473E-08
        1.600 5.1032E-08
        1.800 7.1799E-08
        2.000 1.1180E-07
        2.200 2.2908E-07
        2.400 3.0805E-07
CONDITIONS:
    temperature: 298
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: -1.39e-05 1.49e-09 1.66e-11 3.43e-07 1.65e-10 0.218
    nd: 1.537750
    Vd: 74.703119
    density:
      - value: 3640
    thermal_expansion:
      - temperature_range: 243 343
        value: 1.15e-05
    dPgF: 0.0186
    resistance:
        climatic: 1.0
        acid: 5.1
        phosphate: 4.1