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the refractometer must be set to show a soluble solid (sucrose) content of zero for distilled water at 20 °c.
refraktometer mora biti nastavljen tako, da za destilirano vodo pri 20 °c pokaže vsebnost nič topne trdne snovi (saharoze).
6a225 includes velocity interferometers such as visars (velocity interferometer systems for any reflector) and dlis (doppler laser interferometers).
točka 6a225 vključuje interferometre, kakor so visar (velocity interferometer systems for any reflector) in dli (doppler laser interferometer).
correction of readings to be made when using a refractometer having a scale showing the sucrose content, for temperatures other than 20 °c ± 0,5 °c
popravki odčitkov, upoštevanih pri uporabi refraktometra s skalo, ki kaže vsebnost saharoze, za temperature, ki niso 20 °c 0,5 °c
place a small test sample on the lower prism of the refractometer, taking care (because the prisms are pressed firmly against each other) that this test sample covers the glass surface uniformly.
manjši testni vzorec nanesemo na nižjo prizmo refraktometra, pri čemer pazimo (kajti prizme so pritrjene tesno skupaj), da testni vzorec enakomerno pokrije stekleno površino.
refractometer, accurate to four decimal places, provided with a thermometer and a water-circulation pump connected to a water-bath thermostatically controlled at 20 _ 0 75 _c.
refraktometer, s točnostjo na štiri decimalna mesta, s termometrom in črpalko za vodo, povezano s termostatsko kontrolirano vodno kopeljo, s temperaturo 20 +/- 0,5 c.