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Analytical methods for fat and crude protein in raw milk

[Métodos analíticos para materia grasa y proteína bruta en leche cruda]

EPTIS factsheet 513116 | Last revision 2018-10-09 | URL: https://www.eptis.bam.de/pts513116 https://www.eptis.bam.de/pts513116

PT provider
PT provider LACM/División de Metrología LACM/División de Metrología
Based in Chile
Language(s) Spanish
Remarks Objectives: - In relation to the measurement of fat content and crude protein in raw milk, to evaluate the accuracy and veracity of the results of the instrumental MIR method applied by the participating laboratories, comparing their results with the reference methods and applying international standards criteria. - With regard to the measurement of fat content in raw milk, to evaluate the accuracy of the results of laboratories applying the Gerber method, comparing their results with the reference method and applying precision criteria derived from international standards or inter-laboratory rounds. - To enable laboratories that apply Kjeldahl method for determination of crude protein content in milk, to compare their results with the assigned values and evaluate the differences based on these values in accordance with the precision goals established in international standards. - To enable laboratories applying Röse-Gottlieb or Mojonnier method for determination of fat content in milk, to compare their results with the assigned values and evaluate the differences based on these values and compliance with the precision goals established in international standards. - To enable participating laboratories to trace their results to those obtained with the reference methods by a group of expert laboratories through a chain of comparisons.
Keywords
Product groups Agriculture
Food and drink
Testing fields Analytical chemistry
Technical details
Test item Tested property Testing method
Raw milk (cow) Fat content, % Extraction method
Gerber
Mid-Infrared (MIR) Spectroscopy
Protein (Crude) content, % Kjeldahl
Mid-Infrared (MIR) Spectroscopy
Aims of the PT scheme
Target group of participants Laboratories performing milk and dairy product analysis in Chile
Linked to specific legislation / standards
Additional, subsidiary aims
Number of participants 12 to 15
Accredited or otherwise reviewed by a 3rd party

Accredited by Entidad Mexicana de Acreditación, EMA acreditación N°PEA-ENS-14 on the basis of ISO 17043:2010

No

Operation is commissioned / requested by No
Fees and frequency
Participation fee Please contact us for this information
Regularly operated Yes (Biannual)
Year of first operation 2004
Contact details of the PT provider
Provider Contact person
LACM/División de Metrología
Universidad Austral de Chile, Campus Isla Teja S/N, Valdivia, Chile
5090000
Chile

Phone: 56-63-2221247
Fax: 56-63-2221245
Mr Andrés Soto
Phone: 56-63-2293274
Fax: 56-63-2221245
Email: metrologia@uach.cl metrologia@uach.cl
If you find any mistakes please contact the responsible EPTIS coordinator in Chile, Mr. Humberto Escobar. Mr. Humberto Escobar.
Any questions or problems? Please contact us at eptis@bam.de.
Application version: 1.21