What is the standard of white sugar color value

Introduction: for a long time, the color value of white granulated sugar has only been determined by the standard method of International Committee for the unified analysis of sugar products (Icumsa) or the national standard of white granulated sugar gb317-2006 in China, but there is no reference material with the color value of white granulated sugar that can be traced, so it is often difficult for quality control and trade loss due to the problem of color value So what is the standard of white sugar? Let's take a look at it together with the small knitting Color value is one of the quality indicators of sugar, and one of the main basis for the quality classification of white granulated sugar, soft white sugar and ice sugar It mainly affects the appearance of sugar products, reflects the amount of impurities, and reflects the level of production technology So how much is the standard of white sugar? Let's learn about it with the small safety net of Baibai National standard of white granulated sugar of the people's Republic of China white granulated sugar GB 317-1998 replaces GB 317-91 GB / T 317 2-911 Scope this standard specifies the technical requirements, experimental methods, inspection rules and labels, packaging, transportation and storage requirements of white sugar This standard is applicable to white sugar produced from sugarcane, beet or sugar 2 The provisions contained in the following standards of the cited standards shall constitute the provisions of this standard by reference in this standard At the time of publication, the editions indicated are all valid All standards will be revised All parties using this standard shall explore the possibility of using the latest version of the following standards GB 4789.14789.31-94 microbiological part of food hygiene standard GB / T 5009.55-1996 analytical method of food hygiene standard GB 7718-94 general standard for food labeling GB 13104-91 white sugar hygiene standard 3 Technical requirements White granulated sugar can be divided into four grades according to the technical requirements: refining, superior grade, first grade and second grade 3.1 sensory requirements 3.1.1 the grain size shall be uniform and not less than 80% within the following range: -- coarse grain: 0.8002.50 mm; -- large grain: 0.6301.60 mm; -- medium grain: 0.4501.25 mm; -- fine grain: 0.2800.800 mm 3.1.2 the grain or its aqueous solution shall be sweet and odorless 3.1.3 it shall be dry, loose, white and glossy, No obvious black spots 3.2 the physical and chemical indexes of white granulated sugar are required to refine the first grade and second grade sucrose,% ≥ 99.8 99.7 99.6 99.5 reducing sugar,% ≤ 0.03 0.05 0.100.17 conductivity ash,% ≤ 0.03 0.05 0.100.15 loss on drying,% ≤ 0.06 0.06 0.07 0.12 color value, IU ≤ 30 80 170 260 turbidity, degree ≤ 3.79 11 insoluble in water impurities, mg / kg ≤ 20 30 50 80 According to the national standard, white granulated sugar and soft white sugar are divided into refined, superior, first and second grades The above is the content of white sugar color value standard If you need to know more about white sugar color value standard and other food knowledge, please continue to pay attention to the health and safety common sense column of Baibai safety net Editor in charge: Wang Xiaoli