# 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/schott_2017-01-20b.agf">SCHOTT Zemax catalog 2017-01-20b</a> (obtained from <a href="https://www.schott.com/en-us/products/optical-glass-p1000267/downloads/">http://www.schott.com</a>)<br>See also <a href="https://refractiveindex.info/download/data/2017/schott_2017-01-20.pdf">SCHOTT glass data sheets</a>
COMMENTS: |
    inquiry glass suitable for precision molding        
DATA:
  - type: formula 2
    wavelength_range: 0.39 2.5
    coefficients: 0 1.97464225 0.0145772324 0.467095921 0.0669790359 2.43154209 157.444895
  - type: tabulated k
    data: |
        0.400 4.0984E-06
        0.405 3.2561E-06
        0.420 1.8533E-06
        0.436 1.2039E-06
        0.460 7.7257E-07
        0.500 4.1597E-07
        0.546 2.0253E-07
        0.580 1.3398E-07
        0.620 1.0956E-07
        0.660 1.0334E-07
        0.700 9.5605E-08
        1.060 5.0995E-08
        1.530 7.3606E-08
        1.970 2.5598E-07
        2.325 1.0306E-06
        2.500 1.3875E-06
CONDITIONS:
    temperature: 293
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: 4.82e-07 1.15e-08 -9.95e-12 1.15e-06 1.65e-09 0.315
    nd: 1.9068
    Vd: 21.4
    glass_code: 907214.424
    glass_status: special
    density:
      - value: 4236
    thermal_expansion:
      - temperature_range: 243 343
        value: 6.23e-06
      - temperature_range: 293 573
        value: 7.39e-06
    dPgF: 0.0256
    resistance:
        climatic: 1.0
        stain: 0.0
        acid: 1.0
        alkali: 1.3
        phosphate: 1.0