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Interlaboratory Practice

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Invitation to participate in UILI ILP

Dear Sir / Madam,

On behalf of UILI ILP committee we have the pleasure to invite you to participate in the UILI Interlaboratory Practice Program, a global comparative study of laboratory analysis.

Challenge your lab in a true global laboratory comparative study
Our 2016 and 2017 Interlaboratory Practice Program will focus on 8 different materials. The methods of testing for each lab are free.

Call for participants
See the attachment for more information about the Interlaboratory Practice or download this document. You can subscibe on the Interlaboratory Practice by fill in this form or e-mail to For each scheme a detailed instruction sheet will become available.

Global proficiency testing schemes
The UILI ILP for 2016 comprises the following four programs:

  • 10th UILI ILP 2016: Cations and anions in natural water. (Download Instruction Sheet)
  • 11th UILI ILP 2016: Fat, Dry Matter, Protein, Lactose, Urea and Freezing point in milk. (Download Instruction Sheet)
  • 12th UILI ILP 2016: Waxes, Free Acidity, Peroxide Value, UV Spectrophotometric Test, Fatty Acid Methyl Esters and Stigmastadienes in virgin olive oil. (Download Instruction Sheet)
  • 13th UILI ILP 2016: Nutritional labelling (Download Instruction Sheet)

The UILI ILP for 2017 comprises the following four programs:
  • 14th UILI ILP 2017: Phosphate, Silicate and Nitrate in water
  • 15th UILI ILP 2017: pH, Density, Alcoholic Strength, Total Acidity and Total Sugars in wine
  • 16th UILI ILP 2017: Dimensional Stability during laundering and domestic drying, Force by Traction and lengthening at rupture point, Abrasion Resistance – Martindale in textiles
  • 17th UILI ILP 2017: Conductivity, Sedimentable solids, Solid soluble sulfides, COD, BOD, Hydrocarbons, Coliforms, Detergents, Phenolics and Metals in river water
ILP Provider Area Material Parameters


10th JEMCA Water Natural water Cations and Anions (Ca2+, K+, Mg2+, Na+, Cl-, F-, NO3-, PO43-, SO42-)

11th RELACRE Dairy Milk Fat, Dry Matter, Protein, Lactose, Urea, Freezing point

12th RELACRE Fats and Oils Olive oil /
Refined oil
Waxes, Free Acidity, Peroxide Value, UV Spectrophotometric Test (K270/K268, K232 and Delta K), Fatty Acid Methyl Esters (lauric acid, myristic acid, palmitic acid, palmitoleic acid, heptadecanoic acid, heptadecenoic acid, stearic acid, oleic acid, linoleic acid, linolenic acid, arachidic acid, gadoleic acid (eicosenoic), behenic acid, lignoceric acid) and Stigmastadienes.

13th CALIBA Grains Corn flour Total energetic value (calories), Carbohydrates, Proteins, Total fat, Saturated fat, Trans fat, Dietary fiber, Ash, Total volatile loss by drying at 105 º C, Iron, Sodium, Calcium, Phosphorus


14th JEMCA Water Natural water Phosphate, Silicate and Nitrate

15th RELACRE Beverages Wine pH, Density, Alcoholic Strength, Total Acidity, Total Sugars

16th RELACRE Textiles Tissue-Textil Dimensional stability during Laundering and Domestic Drying, Force by Traction and lengthening at rupture point, Abrasion Resistance – Martindale.

17th CALIBA Environmental River water Conductivity, Sedimentable solids in 10 minutes, Sedimentable solids in 2 hours, Solid soluble sulfides in ethyl ether, COD, BOD 5, Total hydrocarbons, Total coliforms, Fecal coliforms, Detergents (SAAM), Phenolics, Arsenic, Chromium, Cadmium, Lead

The test samples will be distributed End-May/End-June.
You will then have until End-August the time to perform your analysis and report back to us.

Previous studies
You can have an overview on our ILP including the reports of the previous rounds on the website of the Union Internationales Laboratoires Independants.

ILP web application
The reports of these round robin tests will become available by End-December on our website. You can reach our ILP website at: .
If you don't have your login details available use the password forgotten button. Your login details will then be send by e-mail.

Method of participation
Please send an e-mail to to let us know if you would like to participate in one of the ILP programs and to which address and contact we may send the test samples. You can also register at our website. Please subscribe for the 2016 program before End-April/End-May 2016. Subscriptions for 2017 should be submitted before January 2017.

We hope that our ILP will meet your expectations and will make an important contribution to the international comparability of analytical results.

Please send me more information

Sincerely yours,

On behalf of the UILI Governing Board and the UILI ILP committee

Dr. Toru Matsumura
Chairman ILP Committee

Chairman ILP Committee Dr. Toru Matsumura