ICUMSA GS4 Methods

Please find further information on the ICUMSA webpage.

ICUMSA Method GS4-1 (2026)

Polarimetric Sucrose Content of Molasses with Correction for Invert Sugar Content by Polarimetry and Clarification using Basic Lead Acetate – Accepted

ICUMSA Method GS4-2 (2026)

Sucrose in Molasses by Gas Chromatography – Official

ICUMSA Method GS4-3 (2007)

The Determination of Reducing Sugars in Cane Molasses and Certain Refined Syrups by the Lane & Eynon Constant Volume Procedure – Official

ICUMSA Method GS4-5 (2003)

The Determination of Reducing Sugars in Beet Molasses by the Lane & Eynon Constant Volume Procedure – Official

ICUMSA Method GS4-7 (2011)

The Determination of Total Reducing Sugars in Molasses and Refined Syrups after Hydrolysis by the Lane & Eynon Constant Volume Procedure – Official (Reference) Method

ICUMSA Method GS4-9 (2011)

The Determination of Total Reducing Sugars in Molasses and Refined Syrups after Hydrolysis by the Luff Schoorl Procedure – Official

ICUMSA Method GS4-11 (1994)

The Determination of Dry Substance and Moisture in Molasses by Vacuum Oven Drying on Sand – Official

ICUMSA Method GS4-12 (1998)

The Determination of Moisture by the Karl Fischer Procedure in Molasses – Official, and in Cane Raw Sugars, Speciality Sugars and Syrups – Tentative

ICUMSA Method GS4-13 (2009)

The Determination of Refractometric Dry Substance (RDS %) of Molasses – Accepted and Very Pure Syrups (Liquid Sugars), Thick Juice and Run-off Syrups – Official

ICUMSA Method GS4-15 (1994)

The Determination of Apparent Dry Substance (°Brix) of Molasses using a Hydrometer – Accepted

ICUMSA Method GS4-18 (2017)

The Determination of Total α-Galactosides and Raffinose by an Enzymatic Method in Beet Molasses – Official – in Juices and Syrups from Beet Processing and Beet Sugar – Accepted

ICUMSA Method GS4-19 (2005)

The Determination of Raffinose by High Performance Anion Exchange Chromatography (HPAEC) – in Impure Beet Sugar Products- Official

ICUMSA Method GS4-21 (1998)

The Determination of Betaine in Beet Molasses by a High Performance Liquid Chromatography (HPLC) Method – Official

ICUMSA Method GS4-22 (2002)

The Determination of Sucrose and Betaine by HPLC in Beet Molasses – Official

ICUMSA Method GS4-23 (2026)

Polarimetric Sucrose Content of Molasses with Correction for Invert Sugar Content by Polarimetry and Clarification using Carrez Solutions – Tentative