QLabs develops custom DiS test sets, defect catalogs, and maintenance programs for manual, semi-automated, and automated visual inspection — ensuring your processes reliably detect particles and defects, satisfy GMP requirements, and pass audits.
QLabs specializes in the development of custom test sets that are decisive for qualification and validation across Manual Visual Inspection (MVI), Semi-Automated Visual Inspection (SAVI), and Automated Visual Inspection (AVI).
Our customer-specific DiS (Defect Imitation Sample) test sets are fundamental to developing and optimizing inspection systems, qualifying operators effectively, and strengthening their ability to detect defects. They secure reliability and precision in real production environments — a key factor for consistently high-quality inspection.
Send us a brief request about your project. We respond with an initial assessment and next steps within 1–2 business days.
In the pharmaceutical industry, visual inspection is critical for ensuring product quality and safety. It is an indispensable tool for identifying particles and other defects, guaranteeing that products meet the highest quality standards and the requirements of patient safety.
Effective inspection requires more than trained inspectors — it depends on appropriate test sets and adherence to strict regulations. Test sets serve three core purposes in this process:
QLabs combines defect catalogs, custom test sets, training and audits, and ongoing maintenance to sustainably ensure the performance and reliability of your inspection processes.
The foundational document listing defect types to identify problems and improve product and process quality. Available for vials and syringes — and the basis on which we produce individual test sets.
Request defect catalog info
Customer-specific Defect Imitation Sample sets for qualifying operators and equipment, validating systems, and reducing the False Reject Rate to cut costs and improve productivity.
Get DiS test set quote
Systematic operator training built on our defect catalogs and test sets, plus audit preparation and support — so your team and your documentation are ready when inspectors arrive.
Plan training or audit support
Cleaning, periodic inspection, and a reserve pool of replacement samples keep your test sets qualified and reliable. Send your sets to our experts for professional review and renewal.
Discuss maintenance contractsOur test sets are built on standardized conditions and reference samples, ensuring the comparability and reproducibility of inspection results across operators and equipment.
Verifies the functionality and operational readiness of equipment and systems.
Assesses the ability of operators and systems to identify non-deterministic particles and defects.
Systematically identifies and analyzes static, fixed-position defects on products.
Checks the accuracy and reliability of camera systems and optical components.
The need for individual test sets arises from several critical industry requirements. They ensure that all quality-relevant processes meet strict GMP standards and deliver consistent, high-quality results.
GMP compliance is not optional but mandatory. Test sets let manufacturers demonstrate adherence effectively and pass audits successfully.
Where product quality directly affects consumer health and safety, qualifying equipment and processes guarantees every batch meets the required standards.
Test sets help identify and minimize production risks — including contamination and process errors — that could compromise product quality.
Optimization reduces the False Reject Rate, avoids costly false rejections, lowers quality costs, and improves productivity and profitability.
Regular maintenance of test sets is decisive for ensuring their lasting performance and reliability. This critical step keeps your inspection processes aligned with the highest quality standards over time.
Careful cleaning prevents false detections caused by contamination rather than actual product defects — so results are based purely on real defects.
Periodic checks ensure samples retain their qualification status, show no wear, avoid double defects, and accurately reflect every documented defect.
A reserve pool allows fast, efficient replacement of any disqualified sample, keeping test sets fully operational at all times.
Send your test sets to our experts for thorough inspection and replacement of worn samples, keeping them at current technical and quality standards.
A defect catalog is a foundational document — in industry and pharma alike — that lists defect types to identify problems and improve product and process quality, safety, and efficiency.
It supports quality assurance by catching issues early, helps optimize processes to reduce costs, improves operator training and risk management, and ensures regulatory compliance and patient safety. We offer dedicated catalogs for:
On the basis of these catalogs, we produce the individual test sets used for systematic operator training and objective assessment of inspection systems.
Support with qualification and validation documents aligned with current GMP / GxP requirements.
QPS Engineering AG is ISO 9001 and ISO 14001 certified — ensuring structured, traceable workflows.
Experience with aseptic lines, high-volume inspection, and demanding audits.
A dedicated team delivering great results — with short lines of communication and close collaboration on every project.
Share details about your system, facility, or project. Our QLabs experts will contact you with a structured response and proposed next steps.
