Programs / Interlaboratory practice / Announcement
Interlaboratory Practice

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Subject: UILI ILP 2017-2018

Subscribe now to participate in our ILP Program

2018 Still open for registration


On behalf of UILI ILP committee we have the pleasure to send you our final call 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 2017 and 2018 Interlaboratory Practice Program will focus on 8 different materials. The methods of testing for each lab are free.

Final call for participants
Register before July 15th 2017. As of today 117 laboratories did already register for our 14th UILI ILP. To give more laboratories the possibility to participate in our true global inter laboratory comparison the ILP committee has decided to extend the possibility to sign up for the 15th, 16th and 17th UILI ILP. See the attachment for more information about the Interlaboratory Practice or download ILP Program 2017-2018. You can subscibe on the Interlaboratory Practice by fill in this form or e-mail to or subscribe online. For each scheme a detailed instruction sheet will become available.

Global proficiency testing schemes
The UILI ILP for 2017 comprises the following four programs:

  • 14th UILI ILP 2017: Phosphate, Silicate and Nitrate in water. (Download Instruction Sheet)
  • 15th UILI ILP 2017: pH, Density, Alcoholic Strength, Total Acidity and Total Sugars in wine. (Download Instruction Sheet)
  • 16th UILI ILP 2017: Dimensional Stability during laundering and domestic drying, Force by Traction and lengthening at rupture point, Abrasion Resistance – Martindale in textiles. (Download Instruction Sheet)
  • 17th UILI ILP 2017: Conductivity, Sedimentable solids, Solid soluble sulfides, COD, BOD, Hydrocarbons, Coliforms, Detergents, Phenolics and Metals in river water. (Download Instruction Sheet)

The UILI ILP for 2018 comprises the following four programs:
  • 18th UILI ILP 2016: Cations and anions in natural water. (Download Instruction Sheet)
  • 19th UILI ILP 2016: Bituminous mixture and bitumen. (Download Instruction Sheet)
  • 20th UILI ILP 2016: Waxes, Free Acidity, Peroxide Value, UV Spectrophotometric Test, Fatty Acid Methyl Esters and Stigmastadienes in virgin olive oil. (Download Instruction Sheet)
  • 21th UILI ILP 2016: Total energetic value (calories), Carbohydrates, Proteins, Total fat, Saturated fat, Trans fat, Dietary fiber, Ash, Total volatille loss by drying at 105ºC, Iron, Sodium, Calcium, Phosphorus in corn flour. (Download Instruction Sheet)
ILP Provider Area Material Parameters


14th JEMCA Water

Natural water

Phosphate, Silicate and Nitrate

15th RELACRE Beverages


pH, Density, Alcoholic Strength, Total Acidity, Total Sugars

16th RELACRE Textiles


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


18th JEMCA Water

Natural water

Cations and Anions (Ca2+, K+, Mg2+, Na+, Cl-, F-, NO3-, PO43-, SO42-)

19th RELACRE Construction material

Bituminous mixture and bitumen

Baridity (bulk density), Deformation, Establishment, Maximum theoretical bar, Bitumen percentage, Penetration, Ring and ball temperature.

20th 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.

21th 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

The test samples will be distributed later.
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 2017 program before July 15th 2017. Subscriptions for 2017 should be submitted before July 2018.

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