ผลิตภัณฑ์อาหาร เครื่องดื่ม อาหารสัตว์
เอกสารมาตรฐาน
ระหว่างประเทศ
ICUMSA
GS2-13
The Instrumental Determination of the Reflectance of White Sugar - Official
2017
3
664.122 ICUMSA 2019 Ref
This method determines the photometric grade of white sugar in relation to the Braunschweig colour-types by measurement of the ratio of reflectance at two different wavelengths. The Photometer used is calibrated using either Braunschweig Colour Standards (primary standard) or Ceramic Tiles (secondary standard). For sugars having colour type values < 4.85, the absolute difference between two results obtained under repeatability conditions should not be greater than 0.14 and under reproducibility conditions not greater than 0.55.