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Experts in Analytical Services

Laboratory Tello


We are experts in olive oils analysis, its derivatives and other vegetable oils. Laboratory Tello has more than 25 years of experience in the field and we invest into our expansion by widening our services portfolio, including innovative analytical techniques and trusting our highly qualified team.

We are currently part of the international laboratory group TENTAMUS. This membership allows us to reach our objectives of expansion and extension of services.

We value the importance of offering technical certainty to our clients, thus we have a quality system based on UNE EN ISO/IEC 17025 standard which guarantees the lab’s technical competence and reliability of our results.

· Latest news ·

Citrus-Chlorpyrifos-ban-EU-2020

Chlorpyrifos - Ban across the EU

The insecticide chlorpyrifos may no longer be used in the entire European Union from the end of January 2020.   Chlorpyrifos is one of the most commonly used pesticides in agriculture, killing lice, fruit flies and other pests, and is used in fruit and cereal crops. Chlorpyrifos has been suspected of influencing human brain development ... Continued
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New website for BLS-Analytik GmbH, Bad Kissingen

December 2019 – BLS-Analytik GmbH, a laboratory of the Tentamus Group, is pleased to introduce its new website. This new website offers interested visitors easy access to the laboratory services of BLS Analytik, as well as improved links to the partner labs within the Tentamus Group. BLS-Analytik GmbH is an accredited, officially recognized contract laboratory in ... Continued

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