Eurofins | BLC supply the unique patented chemical formulation 6-2-3, which reduces the levels of chrome VI found within leather samples to achieve chrome VI remediation.


What is 6-2-3 chrome VI remediation solution?

6-2-3 is a unique patented chemical formulation designed for chrome VI remediation which reduces the levels of chrome VI found within leather samples. The solution can be applied either by sponge or spray application directly to the surface of the leather. In testing trials, 6-2-3 proved effective in reducing levels of chrome VI from above 3mg/kg (prohibited) down to none detectable levels (<3mg/kg).

Note: Use of 6-2-3 should not be looked to as a routine, remedial part of leather processing; all necessary steps should be taken during leather processing to ensure the risk of chrome VI formation is minimised. The product should be tested for aesthetics first.


How does 6-2-3 chrome VI prevention solution work?

  • Proven to reduce levels of chromium VI within leather
  • Easy to apply
  • Best applied to the flesh side of the leather

Please note, Chrome 6-2-3 should be tested first on a leather sample before application on a larger scale.


How do you know how much chrome VI is in your leather?

Eurofins | BLC conducts chrome VI testing to test for levels of chrome VI in your leather sample or leather product. Chrome VI testing at Eurofins | BLC is carried out to the ISO 17025 standard by experienced laboratory professionals.

Types of chrome VI tests

BS EN ISO 17075, the internationally recognised method for the analysis of chrome VI in leather, has been updated and split into two parts:

  • BS EN ISO 17075-1:2017: Leather – Chemical determination of chromium(VI) content in leather – Part 1: Colorimetric method and;
  • BS EN ISO 17075-2:2017:  Leather – Chemical determination of chromium(VI) content in leather – Part 2: Chromatographic method (recommended)

View more information on chrome VI testing.


What is chrome VI ageing?

Chrome VI ageing tests the ability for leather to form chrome VI from exposure to heat and UV. Eurofins | BLC carries out chrome VI ageing using heat and UV. 

View more information on chrome VI ageing.


Eurofins | BLC Laboratory Supplies & Equipment

Eurofins | BLC can supply your laboratory with a range of scientific leather supplies and equipment:

World-leading leather experts

With all this knowledge, support and experience at your fingertips, who better to provide leather advice than Eurofins | BLC?.

At Eurofins | BLC, we have the technical pedigree in leather technology to provide fast accurate solutions to technical, environmental or management problems in the leather supply chain.

We understand the challenges associated with making leather and supplying products to leather manufacturers and retailers.

We are conscious of changing customer attitudes towards traceability in the leather supply chain, as well as the consumer's high demand for increasing quality balanced with competitive prices.

Therefore, manufacturers and suppliers are under pressure to deliver leather faster, in smaller quantities, and of consistent quality.


For leather services, Eurofins | BLC provides:

  • Technical back up and support from leather product and supply chain experts in the UK
  • Highly competitive pricing
  • An assured pedigree with 100 years' experience


Become a Eurofins | BLC Member and access:

  • Discounted prices
  • Priority testing allocation
  • Access to advanced technical support


Eurofins | BLC Membership Benefits


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


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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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