Porównania laboratoryjne w zakresie badań oleju jadalnego
Udział w programie jest bezpłatny. Ostateczny termin zgłoszenia udziału w porównaniach międzylaboratoryjnych upływa 20 kwietnia 2007 r.
Szczegółowe informacje o programie porównań EstOil-3 oraz formularz zgłoszeniowy w załącznikach.
It is our pleasure to invite you to participate in the edible oil parameters intercomparison measurement EstOil-3. The intercomparison measurement will be organized jointly by University of Tartu Testing Centre (below UT) and Werol Tehased AS (below WT).
The aim of the intercomparison is to allow the participants to assess their performance in determining the following edible oil parameters:
- Moisture content (by Karl Fischer titration) in refined rapeseed oil
- Free fatty acids content in refined rapeseed oil
- Peroxide value in refined rapeseed oil (with added antioxidant)
- Phosphorus content in crude rapeseed oil
- Saponification value in refined rapeseed oil
- Beta-Sitosterol content in refined rapeseed oil
The samples will be prepared and distributed by WT. There will be altogether three samples: refined rapeseed oil (for determination of parameters 1, 2, 5 and 6), refined rapeseed oil with an antioxidant (for determination of parameter 3) and crude rapeseed oil (for determination of parameter 4). The samples will come in dark glass bottles. The determination of peroxide value has to be carried out within two weeks from the date of sending out the samples (the exact date will be given in the documentation accompanying the samples). Determination of parameters 5 and 6 will be carried out only if there is a sufficient number of laboratories who are interested in determination of these parameters.
The evaluation of participant data will be done at UT according to the ISO Guide 43-1. The consensus values will be deduced from the participant and organizer data after rejection of possible outliers.
The Final report will be compiled jointly by UT and WT and will be made public (on the website of UT). The participants will be listed in the final report but the results will be presented in random order, so that the results cannot be traced back to the participants. Every participant will receive a private letter revealing his/her result number and permitting assessment of performance. The reports of the similar intercomparisons carried out in 2005 and 2006 (EstOil-1 and -2) are available at http://www.ut.ee/katsekoda/ILC/ for reference.
Participation to this round of the intercomparison is free of charge. If you are interested in participation, please fill in the attached form and send it to the organizers by e-mail (preferred), fax or post mail (see the form for details). The deadline for registration is April 20, 2007.
You are welcome to forward this letter to your colleagues who might be interested to join and encourage them to contact the organizers if they are interested to participate. We will do our best to admit all interested laboratories to the interlaboratory comparison.
The samples will be sent out during end of April 2007. The deadline for presentation of the results by the participants is May 30, 2007.
With all the best wishes Lauri Jalukse, Ivo Leito Tiina Kukk
University of Tartu, Testing Centre
Jakobi2, 51014 Tartu, Estonia
Phone:+372 51 84 176
Fax:+372 737 5264
Werol Tehased AS
Painküla 48331, Jõgevamaa, Estonia
Phone: +372 77 68 234
Fax: +372 77 68 220
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