PJLA Webinars
Free PJLA Webinars
PJLA offers free webinars on various topics in relation to accreditation. These are for all interested parties including: laboratories seeking accreditation, accredited laboratories, assessors, consultants, etc.
Upcoming Webinars:
Tuesday, September 22, 2026 – 10:00am ET
Compliant vs. Defensible: Building Laboratory Results That Hold Up, Especially When There’s No Standard Method
Every accredited laboratory can produce a result that is compliant. Far fewer can produce one that is defensible.
Join Perry Johnson Laboratory Accreditation (PJLA) for a dynamic interview featuring Ron Brooks, M.S., Founder and Principal Consultant, RRB LLC (Ron Brooks Consulting), and Dr. George J. Anastasopoulos, Technical and International Business Development Manager, PJLA, Inc.
This candid discussion unpacks the gap between passing an assessment and producing results that survive real-world scrutiny — the moment a client, a regulator, or an opposing expert asks, “How do you know that number is right?” Drawing on more than 15 years building and running ISO/IEC 17025-accredited laboratories, and years as an expert witness, Ron Brooks examines where “compliant on paper” quietly diverges from “defensible in practice,” why method validation and measurement of uncertainty form the real backbone of a defensible result, and what laboratories working with non-standard or lab-developed methods, common in cannabis, PFAS, and other emerging matrices, must do to make new science stand up.
Topics include:
- Compliant versus defensible: where the two diverge, and why passing an assessment is not the finish line.
- Validating lab-developed and non-standard methods under ISO/IEC 17025, where no reference method exists.
- Measurement of uncertainty as a tool for defensibility, not a paperwork exercise.
- Documentation drift and the quiet findings that accumulate between assessment cycles.
- Method validation and traceability under real production pressure.
- Accreditation as a business asset: how a defensible scope de-risks the laboratory and shortens sales cycles.
Discover how to tell the difference between a laboratory that passes and one that holds up, and how method validation, measurement of uncertainty, and honest scope turn a compliant result into a defensible one that withstands challenge.
Presented By:
Dr. George Anastasopoulos
Technical and International Business Development Manager of PJLA
Ron Brooks, M.S.
Founder and Principal Consultant, RRB LLC (Ron Brooks Consulting)
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