Case Studies
Engineering Compliance for an ISO Class 5 Medical Device
Cleanroom
The Partner: SourceONE Building Maintenance
Client Profile
Specialized Medical Device Manufacturer
The Challenge
Outdated SOPs and inadequate Work Instructions for high-sensitivity manufacturing
Environment
ISO Class 5 (Class 100) Controlled Environment
THE PROBLEM:
Documentation Debt in a Zero-Tolerance Environment
In 2024, a medical device company reached a critical juncture. Operating an ISO Class 5 cleanroom, where particulate counts must be kept under 3,520 per cubic meter, requires more than just physical cleaning; it requires “The Rule of Law” in the form of documentation.
The high-stakes reality:
The client’s existing Standard Operating Procedures
(SOPs) were outdated and lacked the technical granularity needed for modern medical device manufacturing. Without precise “Work Instructions,” the client faced:
Human Error Risks
contamination.
Regulatory Exposure
Operational Friction
The Diagnosis
Bridging the Gap Between Policy and Practice
SourceONE’s initial assessment was not merely a walkthrough, but a deep-dive audit of the client’s compliance infrastructure. We identified three specific failure points:
Vague SOPs
The written procedures provided a “what to do” but failed to
explain the “how” or “why” required for ISO 5 compliance.
Missing Work Instructions
Outdated Standards
THE SOURCEONE SOLUTION
Strategic Technical Consulting
SourceONE leveraged decades of cleanroom experience to act as a technical extension of the client’s Quality Assurance team.
Phase 1
SOP Optimization
We meticulously reviewed and suggested technical revisions to the client’s written SOPs. We refined the language to ensure it met the stringent requirements of medical device manufacturing and regulatory bodies.
Phase 2
Work Instruction Development
SourceONE helped develop a brand-new set of Work Instructions. These are the "boots on the ground" guides that dictate exactly how a technician enters, cleans, and maintains the ISO 5 space to ensure repeatable, compliant results.
Phase 3
Implementation & Training Support
We didn’t just hand over a document; we helped implement the new instructions, ensuring that the staff understood the science behind the new protocols.
THE RESULT
From "Good Enough" to Audit-Ready
By transforming their documentation from a static file into a functional tool, the client achieved a new baseline of operational excellence
Total Regulatory Alignment
The facility’s documentation now mirrors the precision of its engineering, fully satisfying ISO Class 5 requirements.
Repeatable Compliance
With clear Work Instructions, the risk of human-led contamination has been drastically reduced.
Scalable Success
The new documentation provides a blueprint that the client can use as they scale production or undergo future expansions.