Interlaboratory comparisons for microbiological testing.
Benchmark your lab with interlaboratory comparisons and clear reporting. Custom options available on request.
Design Your Own
PT Program
Define matrix, analytes, standards, methods, schedule — we’ll set it up.
PT Programs and support for V&V bodies and claim assessments.
Trusted Proficiency Testing Provider offering reliable interlaboratory comparisons and custom PT programs for laboratories and organizations.
Proficiency Testing Programs for digital laboratories.
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Quality Solutions
Proficiency Testing (PT) by ILT — Interlaboratory Test
ILT is an ISO/IEC 17043–accredited proficiency testing provider (PT provider). We organize statistically robust interlaboratory comparisons that help testing, calibration and inspection laboratories demonstrate competence and improve quality
Built for ISO/IEC 17043 Accreditation
Our PT programs align with accreditation-body requirements and ISO/IEC 17043 best practices. Participants receive transparent, traceable evaluations with consensus statistics and z-score reporting to support audits and ongoing quality assurance.
Interlaboratory & Customized Options
Choose from regular PT rounds across multiple disciplines or request tailored comparisons against a qualified reference laboratory/method. Custom PT studies help assess bias, validate methods and verify measurement uncertainty for your scope.
Latest News
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Environmental Consulting Services
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International Standards
Programs designed under ISO/IEC 17043 to ensure global quality and comparability.
Global Expertise
Over 20 years supporting laboratories worldwide with reliable proficiency testing.
Reliable Processes
Clear and transparent methodologies ensuring traceable and secure results.
