# 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: |
    The unique relative partial dispersion.
DATA:
  - type: formula 2
    wavelength_range: 0.29 2.4
    coefficients: 0 1.06785857 0.00699227302 0.0335857718 -0.0207608925 1.10219763 226.496541
  - type: tabulated k
    data: |
        0.290 1.0628E-05
        0.300 6.3485E-06
        0.310 3.6255E-06
        0.320 1.8690E-06
        0.330 9.7443E-07
        0.340 4.0807E-07
        0.350 2.1112E-07
        0.360 9.9097E-08
        0.370 4.4500E-08
        0.380 2.1242E-08
        0.390 1.5557E-08
        0.400 1.5955E-08
        0.420 2.0114E-08
        0.440 2.1072E-08
        0.460 1.8349E-08
        0.480 1.1476E-08
        0.500 7.9657E-09
        0.550 4.3790E-09
        0.600 9.5589E-09
        0.650 1.5541E-08
        0.700 1.1152E-08
        0.800 1.2745E-08
        0.900 1.4338E-08
        1.000 1.5931E-08
        1.200 1.9118E-08
        1.400 2.2304E-08
        1.600 2.5490E-08
        1.800 2.8677E-08
        2.000 3.1863E-08
        2.200 3.5049E-08
        2.400 3.8235E-08
CONDITIONS:
    temperature: 298
PROPERTIES:
    nd: 1.455999
    Vd: 90.288026
    glass_code: 456903
    glass_status: preferred
    density:
      - value: 3530
    thermal_expansion:
      - temperature_range: 243 343
        value: 1.33e-05
      - temperature_range: 293 573
        value: 1.58e-05
    dPgF: 0.0386
    resistance:
        acid: 52.0
        phosphate: 4.0