R108 1993 Refractometers for the measurement of the sugar content of fruit juiceshttps://www.oiml.org/en/publications/other-language-translations/persian/r108-1993-refractometers-for-the-measurement-of.pdf/viewhttps://www.oiml.org/logo.png
R108 1993 Refractometers for the measurement of the sugar content of fruit juices