Frequently Asked Questions
Is TLR Accredited?
Yes, TLR is fully accredited under EN ISO/IEC 17025:2017. This ensures that our analytical methods are reliable, traceable and internationally recognised.
Which Analytical Methods and Matrices Are Covered by the Accreditation?
The scope covers a wide range of matrices, including food, animal feed, solid fuels and vegetable oils, with accredited analytical methods ranging from ICP-MS to PCR.
What Is the Average Turnaround Time for Analyses?
The standard turnaround time is 5 to 10 working days, depending on the type of analysis. Expedited testing is available upon request.
Are Your Analyses Legally Valid for Regulators or Courts?
Yes, accredited analyses from TLR are recognised by the NVWA, RVO, courts and other official authorities.
Can I Ensure Full Traceability of My Sample?
Absolutely. Every sample is registered upon arrival with a unique identifier and tracking system, ensuring full traceability in accordance with ISO standards.
Do You Also Support Monitoring Programmes?
Yes, we provide comprehensive support for monitoring residues, contaminants and nutrients - including trend analysis.
Do You Assist with the Interpretation of Test Results?
Yes, our specialists provide clarification of results and offer telephone or written advice upon request.
How Long Do You Retain the Samples?
By default, leftover samples are retained for 3 months. Extended storage is available upon request and subject to specific conditions.
Can I Submit Samples Myself, or Do You Offer Sampling Services?
Both options are available. We offer on-site sampling in accordance with official guidelines, but you may also submit samples yourself.
What Are the Instructions for Sending Samples?
Samples must be clean, dry and properly labelled. Preferably use sturdy, sealable packaging.
Do You Offer an Express Service?
Yes, for many types of analyses we offer an express service with a shortened turnaround time. Please contact us in advance to confirm availability.
What Should I Do If I Notice Deviating Values?
Our QA specialists carefully investigate any deviations. Upon request, we can repeat the analysis or perform additional checks.
Are My Results Treated Confidentially?
Yes, all client data and analytical results are treated with strict confidentiality and only shared with designated contact persons.
What Analytical Capabilities Do You Offer In-House?
We offer in-house capabilities including LC-MS/MS, GC-MS/MS, ICP-MS, ELISA, PCR, MALDI-TOF, Dumas and classical chemical techniques.
What Are the Benefits of Accreditation?
Accreditation provides assurance of method validation, staff competence, traceability and reproducibility.
Can I Also Become a Client as a Private Individual at TLR?
No, we exclusively serve B2B clients within the food, feed, fuel, water and environmental sectors.
Do You Also Provide Results in Digital Format?
Yes, reports are delivered digitally by default in PDF format, either via our client portal or by email.
What If I Have a Complaint?
Complaints are taken seriously and handled according to a standard procedure. Please submit your complaint in writing via [email protected].
Do You Offer Customised Testing Services?
Yes, we work closely with clients to develop customised analytical methods or tailored setups for specific challenges.
What Is the Certus Logic Protocol and Do You Apply It?
The Certus Logic Protocol is a methodology developed and applied by TLR to systematically structure risks, analytical methods and compliance within complex supply chains. It forms part of our strategic advisory services.
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