# 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 
DATA:
  - type: formula 2
    wavelength_range: 0.34 2.4
    coefficients: 0 1.89458276 0.0102277048 0.268702978 0.0442801243 1.45705526 104.874927
  - type: tabulated k
    data: |
        0.340 7.6121E-06
        0.350 3.2620E-06
        0.360 1.5116E-06
        0.370 8.0804E-07
        0.380 4.5608E-07
        0.390 2.9611E-07
        0.400 2.0713E-07
        0.420 1.1908E-07
        0.440 8.5059E-08
        0.460 6.2765E-08
        0.480 4.6114E-08
        0.500 3.1959E-08
        0.550 1.3150E-08
        0.600 9.5589E-09
        0.650 1.0355E-08
        0.700 1.1152E-08
        0.800 6.3694E-09
        0.900 1.4338E-08
        1.000 2.3909E-08
        1.200 2.8691E-08
        1.400 7.8260E-08
        1.600 1.0227E-07
        1.800 2.3104E-07
        2.000 6.0004E-07
        2.200 2.0402E-06
        2.400 6.8120E-06
CONDITIONS:
    temperature: 298
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: 6.2e-06 1.43e-08 -3.96e-12 8.21e-07 7.44e-10 0.216
    nd: 1.804398
    Vd: 39.586150
    glass_code: 804396
    density:
      - value: 4340
    thermal_expansion:
      - temperature_range: 243 343
        value: 5.8e-06
      - temperature_range: 293 573
        value: 7e-06
    dPgF: -0.0045
    resistance:
        climatic: 1.0
        acid: 4.2
        phosphate: 1.0