Betekenis van:
reflectance

reflectance
Zelfstandig naamwoord
    • the fraction of radiant energy that is reflected from a surface

    Synoniemen

    Hyperoniemen


    Voorbeeldzinnen

    1. Meter with adjustments Reflectance %
    2. Equipment for measuring absolute reflectance to an accuracy of ± 0,1 % of the reflectance value;
    3. Equipment for measuring absolute reflectance to an accuracy of ±0,1 % of the reflectance value;
    4. light responsive dimming (for daylight and/or room reflectance variations),
    5. The reflectance value is read directly from the indicating meter.
    6. Optical equipment, as follows: a. equipment for measuring absolute reflectance to an accuracy of ±0,1 % of the reflectance value;
    7. Cadmium and lead in filter glasses and glasses used for reflectance standards
    8. Crumpled euro banknotes can normally be identified if their level of reflectance or stiffness is reduced.
    9. Cleanness can be measured visually, photometrically (e.g. measuring reflectance), gravimetrically or by means of another relevant method.
    10. The term “hard coal” refers to coal of gross calorific value greater than 23865 kJ/kg (5700 kcal/kg) on an ashfree but moist basis and with a mean random reflectance of vitrinite of at least 0,6.
    11. The term ‘hard coal’ refers to coal of gross calorific value greater than 23865 kJ/kg (5700 kcal/kg) on an ashfree but moist basis and with a mean random reflectance of vitrinite of at least 0,6.
    12. The entrance port shall be circular and have a diameter at least twice that of the light beam. The exit port of the sphere shall be provided with either a light trap or a reflectance standard, according to the procedure described in paragraph 4.4.3 below.
    13. Non-metallised reflecting film, consisting of outside layers of poly(ethylene terephthalate) or poly(ethylene naphthalate) and multiple layers of poly(methyl methacrylate), of a reflectance coefficient of 95 % or more (as determined by the ASTM E 1164-94 and ASTM E 387-95 methods) and a total thickness not exceeding 70 μm
    14. Non-metallised reflecting film, consisting of outside layers of poly(ethylene terephthalate) or poly(ethylene naphthalate) and multiple layers of poly(methyl methacrylate), of a reflectance coefficient of 95 % or more (as determined by the ASTM E 1164-94 and ASTM E 387-95 methods) and a total thickness not exceeding 70 μm