The ICUMSA Methods Book Supplement 2024 comprises 2 new Methods, 1 revised Standard, 2 Methods changed in status, and 11 completely revised and rewritten Methods.
The ICUMSA Methods Book Supplement 2024 can be ordered in the Bartens Book Shop.
Introductory Pages
The new introductory pages 1–12 of the Methods Book should replace the 2022 version.
New Methods
GS3-31 (2024) 5-Hydroxymethylfurfural (HMF) in Sugar Syrups and Invert Sugar Syrups by High Performance Liquid Chromatography (HPLC) – Official
GS7-36 (2024) Total, Soluble, and Insoluble Starch in Cane Raw Sugars using Microwave-Assisted Neutralisation – Tentative
Method changed in Status from Tentative to Official
GS5-2 (2024) Sucrose, Dry Substance and Fibre in Cane by NIR-Polarimetry and Refractometry using a Hydraulic Press for Juice Recovery – Official (Reference)
Method changed in Field of Application
GS2-35 (2024) The Determination of Sulphite in Refined and Speciality Sugars by an Enzymatic Method – Official
Revised Methods
GS1-7 (2024) Colour in Solution of Sugars and Syrups with more than 250 and less than 16,000 ICUMSA® Units and pH Adjustment with HCl/NaOH – Official (formerly: Determination of the Solution Colour of Raw Sugars, Brown Sugars and Coloured Syrups at pH 7.0 – Official)
GS2-9 (2024) Colour in Solution of Sugars with more than 20 and less than 600 ICUMSA® Units and
pH Adjustment with TEA/HCl Buffer – Accepted (formerly: The Determination of Sugar Solution Colour at pH 7.0 – Accepted)
GS2-10 (2024) Colour in Solution of Sugars, Liquid Sugar and Syrups with less than 50 ICUMSA® Units and with no pH Adjustment – Official (formerly: The Determination of White Sugar Solution Colour – Official)
GS2-11 (2024) Visual Appearance of White Sugars – using Braunschweig Colour-Types – Official
GS2-13 (2024) Reflectance of White Sugar – Official
GS2-41 (2024) Total Mesophilic Aerobic Microorganisms in White Sugar by Membrane Filtration or Pour Plating – Accepted
GS2-49 (2024) Thermophilic Spore-Forming Bacteria in White Sugar by Membrane Filtration or Pour Plating – Accepted
GS2-50 (2024) Thermophilic Acidophilic Bacteria (TAB) and Guaiacol Producing TAB (GP-TAB) in White Sugar by Membrane Filtration or Pour Plating – Accepted
GS6-3 (2024) Polarimetric Sucrose Content in Sugar Beet after Clarification using Aluminium Sulphate – Official
GS6-5 (2024) Spectrophotometric α-Amino-Nitrogen Content in Sugar Beet after Clarification using Aluminium Sulphate – Official
GS6-7 (2024) Flame Photometric Potassium and Sodium Content in Sugar Beet after Clarification using Aluminium Sulphate – Official
Revised Specification and Standard
SPS-12 (2024) Sampling of Crystalline, Paste and Liquid Sugars for Microbiological Analyses
Deleted Methods
GS1-24 (2017) The Determination of Insoluble Solids in Raw Sugar by Depth-Type Filtration – Tentative
GS8/2/3/4-9 (2000) The Determination of Calcium in Sugar Products by EDTA Titration – Accepted