We provide accurate and reliable verification of cotton origins using advanced SIRA technology, ensuring transparency and traceability throughout your supply chain.


The Test

The test is for consistency with claimed origin, i.e. a verification of claimed origin. We can confirm using isotope testing whether the raw cotton in your product matches the isotope profile of the country you understand it to come from.

You can use the test to verify raw cotton origin claims.


The Report

We can provide you with a technical report test certificate that can show the sample has:


Passed - is verified for consistency with claimed origin

Monitor - consistency with dataset is weaker than expected

Warning - unexpected results not consistent with the reference dataset


If the material test shows a pass this can be used to confirm origin. Other results would benefit from further investigation with suppliers of cotton to understand true raw material source.


Materials that can be tested:

We can test a wide scope of cotton samples from any point in the supply chain including:

  • Pure cotton
  • Raw
  • Processed
  • Dyed
  • Dual (blended) 
  • Cotton blended with synthetic materials such as Polyester, Acrylic 
  • Finished article


Remote Sample collection (if required)

The integrity of your sample collection process is critical to the accuracy of the results to protect against fraudulent samples entering the testing process. We have a due diligence Chain of Custody process which has proven success that can be used if you require: Security seal sample collection bags are used with witnessed sample collection, options include remote video witnessing and in-person.



We require 15 working days (Monday – Friday) from receipt of sample to provide results



We offer competitive prices with and without virtual witnessing. Please contact us for details.


Contact Us  

Talk to one of our experts today by email [email protected] or telephone +44 (0)1604 679999.



Our Accreditations

Eurofins | BLC holds accreditations from UKAS and CPSC and has auditors approved to carry out LWG audits. Trust Eurofins | BLC to deliver some of the most accurate test results in the industry.

View our Accreditations


"We thought every part of the Eurofins | BLC leather course was very informative and interesting."

John Lewis Partnership

United Kingdom

"Membership allowed us to use the expertise of Eurofins | BLC to improve our suppliers' environmental performance."

Clarks International

United Kingdom

"All parts of the leather training course were relevant and very informative. I now have a new appreciation for leather!"

Ralph Lauren

United States of America

"Smart chemical testing of wet blue saves our business time and money."

Casino Hide Tanners


"Eurofins | BLC Membership allows us to develop innovative high quality raw materials in order to continue our product improvement programme."


United Kingdom

"I enjoyed the combination of theoretical and practical training on the 4-day leather course."


United Kingdom

“10 years of Eurofins | BLC Membership has enabled us to provide continuous assurance of product quality and safety, giving our customers greater confidence in our products.”


United Kingdom

"We were very impressed by the speaker on the leather training course who had excellent knowledge of the subject."


United Kingdom

"I became a Member to take advantage their specification building services and 1-2-1 regulatory advice."

Gheli International


"I just wanted to say a big thanks for 2 great days of leather education last week."



"Through Eurofins | BLC Membership, we have access to technical support for leather product testing, helping us to provide more efficient services to our customers."

William Lamb

United Kingdom

"I enjoyed all of the leather course as a chemist I wanted to understand the whole process of making leather."

Smit & zoon


Send An Enquiry

Contact Eurofins | BLC to discuss your enquiry with friendly and helpful experts and to get a quotation. For Eurofins | BLC to receive your enquiry, you must complete all 3 sections of the contact form below. To receive the Technical Update email, you simply need to complete this form. Eurofins | BLC aim to respond to all enquiries within 24 hours Monday to Friday.

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