World Library  
Flag as Inappropriate
Email this Article

International Commission for Uniform Methods of Sugar Analysis

Article Id: WHEBN0026004205
Reproduction Date:

Title: International Commission for Uniform Methods of Sugar Analysis  
Author: World Heritage Encyclopedia
Language: English
Subject: Sugar
Collection: Standards Organizations, Sugar Organizations
Publisher: World Heritage Encyclopedia
Publication
Date:
 

International Commission for Uniform Methods of Sugar Analysis

The International Commission for Uniform Methods of Sugar Analysis (ICUMSA) is an international standards body, founded in 1897,[1][2] that publishes detailed laboratory procedures for the analysis of sugar.

The ICUMSA Methods Book[3] contains detailed instructions for analyzing raw, cane, white, beet, molasses, plantation white and specialty sugars. Among these are methods for determination of dry solids content by polarimetry, densimetry and refractometry, color (extinction coefficient at 420 nm), reducing sugars, and the presence of metals such as arsenic and copper. The Methods Book also contains polynomials and tables (derived from the polynomials)[4] which relate the refractive index of solutions of pure sucrose, glucose, fructose and invert sugar to the strength of those solutions. These are to be used with the analysis methods that characterize sugars by refractometric means but find wide application outside the sugar industry as the sucrose polynomial is built into the firmware of modern refractometers[5] and is the basis for calibration of purely optical refractometers which read in Brix. Temperature correction factors, also derived from the polynomials, are the basis for the Automatic Temperature Compensation features found in those instruments.[6] Thus, a vintner measuring the Brix of juice from his grapes by means of a refractometer accepts a sugar content reading based on the refractive properties of sucrose despite the fact that the primary sugar in grape juice is fructose, not sucrose. This usually does not result in significant error.

The ICUMSA is constituted of representatives from national committees designated by the governments of major sugar importing and exporting countries; the votes of these representatives are weighted according to the amount of sugar their countries import and export.[7]

References

  1. ^ ICUMSA: History, retrieved 2010-02-07.
  2. ^ Plews, R. W. (1997), The History of ICUMSA. The First 100 Years, 1897–1997, Berlin: Verlag Albert Bartens KG,  .
  3. ^ ICUMSA Methods Book (2009), Verlag Dr. Albert Bartens KG, Berlin, 2010, ISBN 978-3-87040-553-3 and Supplement ISBN 978-3-87040-563-2)
  4. ^ Methods Book, op. cit. Specification and Standard SPS-3 (2000) Refractometry and Tables
  5. ^ Anton Paar, GmbH, Abbemat High Performance Automatic Refractometer
  6. ^ Reichert Analytical Instruments, AR200 Refractometer User's Guide
  7. ^ ICUMSA Constitution, retrieved 2010-02-07.

External links

  • ICUMSA web site
This article was sourced from Creative Commons Attribution-ShareAlike License; additional terms may apply. World Heritage Encyclopedia content is assembled from numerous content providers, Open Access Publishing, and in compliance with The Fair Access to Science and Technology Research Act (FASTR), Wikimedia Foundation, Inc., Public Library of Science, The Encyclopedia of Life, Open Book Publishers (OBP), PubMed, U.S. National Library of Medicine, National Center for Biotechnology Information, U.S. National Library of Medicine, National Institutes of Health (NIH), U.S. Department of Health & Human Services, and USA.gov, which sources content from all federal, state, local, tribal, and territorial government publication portals (.gov, .mil, .edu). Funding for USA.gov and content contributors is made possible from the U.S. Congress, E-Government Act of 2002.
 
Crowd sourced content that is contributed to World Heritage Encyclopedia is peer reviewed and edited by our editorial staff to ensure quality scholarly research articles.
 
By using this site, you agree to the Terms of Use and Privacy Policy. World Heritage Encyclopedia™ is a registered trademark of the World Public Library Association, a non-profit organization.
 



Copyright © World Library Foundation. All rights reserved. eBooks from World Library are sponsored by the World Library Foundation,
a 501c(4) Member's Support Non-Profit Organization, and is NOT affiliated with any governmental agency or department.