# 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: |
    Low Softening Temperature 
DATA:
  - type: formula 2
    wavelength_range: 0.365 2.325
    coefficients: 0 1.97460503 0.0101854258 0.361903592 0.0384829118 1.38433241 103.713627
  - type: tabulated k
    data: |
        0.340 8.1054E-06
        0.350 3.3533E-06
        0.360 1.5605E-06
        0.370 7.6955E-07
        0.380 4.5608E-07
        0.390 2.7569E-07
        0.400 1.8344E-07
        0.420 9.8359E-08
        0.440 6.7167E-08
        0.460 4.7899E-08
        0.480 3.0681E-08
        0.500 1.9944E-08
        0.550 4.3790E-09
        0.600 4.7770E-09
        0.650 5.1751E-09
        0.700 5.5732E-09
        0.800 6.3694E-09
        0.900 7.1656E-09
        1.000 7.9617E-09
        1.200 9.5541E-09
        1.400 1.1146E-08
        1.600 2.5490E-08
        1.800 1.1505E-07
        2.000 4.3563E-07
        2.200 1.2141E-06
        2.400 4.9917E-06
CONDITIONS:
    temperature: 298
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: 5.8e-06 1.01e-08 -1.47e-11 7.72e-07 7.64e-10 0.232
    nd: 1.854000
    Vd: 40.378368
    density:
      - value: 5250
    thermal_expansion:
      - temperature_range: 243 343
        value: 6.3e-06
    dPgF: -0.0073
    resistance:
        climatic: 4.0
        acid: 3.2
        phosphate: 1.0