OS GSO OIML R14:2014
OIML R 14:1995
Omani Standard
Current Edition
·
Approved on
02 April 2014
Polarimetric saccharimeters graduated in accordance with the ICUMSA International Sugar Scale
OS GSO OIML R14:2014 Files
English
14 Pages
Current Edition
Reference Language
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OS GSO OIML R14:2014 Scope
Polarimetric saccharimeters are instruments which measure the relationship between the
optical rotation caused by an aqueous solution of a sample and that caused by a pure sucrose
solution of prescribed concentration, using the same polarized light.
This Recommendation applies to polarimetric saccharimeters that are graduated in sugar
degrees (!Z) in accordance with the ICUMSA International Sugar Scale (see Annex A) and that
belong to the visual or photo-electric type, including:
a) saccharimeters with a rotating polarizer or analyser of which the angle of rotation can be
measured and which are illuminated by a monochromatic light source of known wavelength
which must be between 540 nm and 633 nm;
b) saccharimeters with quartz wedge compensation and illuminated either by a monochromatic
light source of known wavelength which must be between 540 nm and 633 nm, or by the light
of an incandescent lamp filtered in such a way that the distribution of the spectral energy from
the lamp, arising from the degree of spectral filtration by the filter and from the spectral
sensitivity of the detector (eye or photo-multiplier), permits the use of radiation of effective
wavelength 587 nm;
c) saccharimeters which operate according to a principle of measurement other than those given
in (a) and (b).
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