Integrating ISO/IEC 17025 with ISO 9001 and ISO 15189
Last Updated on October 13, 2025 by Melissa Lazaro
Why Integrating ISO/IEC 17025, ISO 9001, and ISO 15189 Makes Sense for Modern Laboratories
Over the years, I’ve met countless lab managers juggling multiple ISO standards — ISO 9001 for general quality management, ISO/IEC 17025 for technical competence, and ISO 15189 for medical testing.
They all share one complaint: “We’re drowning in duplicate documents, parallel audits, and overlapping requirements.”
If that sounds familiar, you’re not alone. Most labs don’t realize how much overlap exists among these standards — and how much time and money they can save by bringing them together into a single, integrated system.
The truth is, ISO 9001, ISO/IEC 17025, and ISO 15189 aren’t competing frameworks — they’re complementary. Each one focuses on a different layer of the same structure:
-
ISO 9001 sets the foundation for quality management.
-
ISO/IEC 17025 ensures technical accuracy and laboratory competence.
-
ISO 15189 adds patient safety and medical reliability to the mix.
Integrating them isn’t about adding more work — it’s about removing duplication and creating one clear, efficient management system.
When done right, you get:
-
One set of procedures and forms everyone uses.
-
One audit plan covering all standards.
-
One management review process that satisfies every requirement.
That’s what this guide will show you — how to align these three standards practically, step by step, so your lab runs smoother, leaner, and more confidently under a unified system.
Understanding the Standards (How ISO/IEC 17025, ISO 9001, and ISO 15189 Align)
Before we dive into integration, let’s get one thing straight — these three standards aren’t competing; they’re complementary. They all focus on quality, consistency, and competence, but from slightly different angles. Once you understand where they overlap, integration becomes much simpler.
ISO 9001 – The Foundation of Quality Management
Think of ISO 9001 as the backbone of any management system.
It sets the general framework for quality — defining leadership, planning, risk-based thinking, customer focus, and continual improvement. It doesn’t tell you how to run a lab; it tells you how to run an effective organization that delivers consistent results.
Most laboratories already meet many ISO 9001 principles without realizing it — through documentation control, corrective actions, and customer feedback systems.
ISO/IEC 17025 – Technical Competence for Testing and Calibration Labs
ISO/IEC 17025 builds on ISO 9001’s foundation but adds one crucial element — technical validity.
It ensures that every test or calibration result is accurate, traceable, and defensible. It focuses on the “science” side of the operation — method validation, measurement uncertainty, equipment control, and staff competence.
In short, ISO 9001 says, “Do what you say.”
ISO/IEC 17025 adds, “And prove that it’s scientifically correct.”
ISO 15189 – Quality and Competence for Medical Laboratories
ISO 15189 is like ISO/IEC 17025’s cousin in the healthcare world.
It mirrors the same technical rigor but adds requirements specific to medical testing — patient identification, sample integrity, clinical interpretation, and confidentiality.
While ISO/IEC 17025 focuses on measurements and calibrations, ISO 15189 emphasizes the impact of those results on patient care.
The Common Ground
All three standards share a strong core of principles:
-
Risk-based thinking: anticipating problems before they affect results.
-
Competence: ensuring qualified personnel perform critical work.
-
Document control: keeping processes consistent and traceable.
-
Customer focus: whether your customer is an industry client or a physician.
-
Continual improvement: using feedback, audits, and data to grow stronger.
That’s why integration makes sense — because the standards already speak the same language.
Pro Tip
Think of integration like layering, not merging:
-
ISO 9001 gives you the management foundation.
-
ISO/IEC 17025 adds technical assurance.
-
ISO 15189 adds clinical precision.
Together, they form one solid, efficient, and audit-ready system.
Why Integration Matters (The Business Case for Unified Systems)
Every laboratory I’ve worked with eventually reaches the same crossroads: they’re running multiple management systems side by side — ISO 9001 for quality, ISO/IEC 17025 for technical operations, and maybe ISO 15189 for medical testing — and the administrative burden starts catching up fast.
Separate audits, separate manuals, separate records.
Sound familiar?
That’s exactly why integration matters. It’s not just about compliance — it’s about efficiency, consistency, and clarity.
One System, Many Benefits
An Integrated Management System (IMS) brings everything under one roof. Instead of maintaining three sets of similar procedures, you build one streamlined structure that satisfies all the standards at once.
Here’s what that looks like in practice:
-
One quality manual that references all standards.
-
One audit program covering shared requirements.
-
One management review that reviews overall lab performance.
-
One set of records and KPIs that support both business goals and technical accuracy.
When I helped a calibration lab integrate ISO 9001 and 17025, they cut document redundancy by 40% in six months — and their next external audit went smoother than ever.
Efficiency Beyond Paperwork
Integration doesn’t just save time on documentation; it improves collaboration and decision-making.
When everyone — from lab techs to managers — works under a single system, communication flows naturally.
Instead of “That’s the ISO 9001 procedure” or “That’s for 17025,” it becomes our process.
You also eliminate conflicting procedures — like two different ways to handle nonconformities or customer complaints. Integration brings alignment, not confusion.
Better Performance, Stronger Compliance
A unified system gives you:
-
Consistent goals — all standards drive toward one set of KPIs.
-
Fewer gaps — one audit checklist covers all requirements.
-
Improved risk management — shared data helps prevent problems across functions.
-
Simpler training — one orientation for staff, not three different programs.
It also builds resilience. When ISO standards update — like the 2017 revision of 17025 — an integrated system adapts faster because your processes are already linked and harmonized.
Pro Tip
Integration doesn’t mean rewriting everything.
Start by mapping overlaps — identify where your systems already share controls (document management, internal audits, corrective actions) and merge those first.
You’ll find 60–70% of the requirements are already identical or easily aligned.
Common Mistake
Many labs try to “stack” systems instead of truly integrating them.
They keep three manuals, three audit plans, and three review cycles — just labeled differently. That’s not integration; that’s duplication in disguise.
Real integration means one process, multiple compliances.
The Bottom Line
When you integrate ISO/IEC 17025, ISO 9001, and ISO 15189, you stop managing standards and start managing performance.
It’s simpler, leaner, and far more sustainable — especially for labs aiming to scale or expand their accreditation scopes.
Section 2.3 – Mapping Common Clauses and Requirements (Where the Standards Overlap)
Here’s the truth most labs don’t realize until they start comparing standards side by side: ISO/IEC 17025, ISO 9001, and ISO 15189 share nearly 70% of their structure.
They all come from the same management philosophy — the Plan–Do–Check–Act (PDCA) cycle — and focus on the same essentials: consistency, competence, and continual improvement.
When you recognize this overlap, integration stops feeling overwhelming and starts feeling logical.
Where the Standards Intersect
Let’s look at how the key clauses line up across all three:
Core Area | ISO 9001 | ISO/IEC 17025 | ISO 15189 | Integration Tip |
---|---|---|---|---|
Leadership & Management | Clauses 5, 9 | Clauses 4, 8.9 | Clauses 4.1–4.15 | Conduct one management review that covers all three. |
Competence & Training | Clause 7.2 | Clause 6.2 | Clause 5.1 | Use one training plan and competence matrix for all staff. |
Document Control | Clause 7.5 | Clause 8.3 | Clause 4.3 | Maintain one procedure for document and record control. |
Risk & Opportunities | Clause 6.1 | Clause 8.5 | Clause 4.14 | Centralize risk register and link to all standards. |
Internal Audits | Clause 9.2 | Clause 8.8 | Clause 4.14 | Run one internal audit program with cross-standard checklists. |
Corrective Actions | Clause 10.2 | Clause 8.7 | Clause 4.11 | One corrective action form and log for all. |
Continual Improvement | Clause 10.3 | Clause 8.6 | Clause 4.15 | Track improvements in a shared KPI dashboard. |
Why This Mapping Matters
When I first introduced this side-by-side comparison to a client — a large medical testing lab — the reaction was immediate: “Wait, we’ve been doing all of this twice?”
Exactly.
By mapping the overlaps, you quickly see where multiple documents and processes can collapse into one.
For example:
- You don’t need three procedures for document control.
- You don’t need separate corrective-action logs.
- You don’t need three management reviews.
You just need one structured, well-documented process that clearly references how it meets each clause across the standards.
Pro Tip: Build a Cross-Reference Matrix
A cross-reference matrix is the secret weapon of integration.
Create a simple table listing each clause of ISO 9001, ISO/IEC 17025, and ISO 15189, and beside it, note the document, form, or process that satisfies all three.
Example:
Requirement | ISO 9001 Clause | ISO 17025 Clause | ISO 15189 Clause | Procedure / Record |
---|---|---|---|---|
Document Control | 7.5 | 8.3 | 4.3 | QP-DC-01 Document Control Procedure |
Internal Audit | 9.2 | 8.8 | 4.14 | QP-AU-01 Internal Audit Procedure |
Auditors love this — it proves your system is aligned, not fragmented.
Common Mistake
Some labs overcomplicate integration by rewriting everything from scratch. You don’t need to reinvent the wheel.
Keep your existing ISO 17025 structure (since it’s the most detailed) and simply map ISO 9001 and ISO 15189 requirements onto it.
It’s faster, cleaner, and more intuitive for technical teams.
Key Takeaway
When you look beyond the numbers and realize how aligned these standards already are, integration stops being a compliance headache — and becomes a strategy for smarter, leaner quality management.
Building an Integrated Documentation Framework (Unifying Manuals & Procedures)
Here’s what usually happens when a lab tries to manage ISO/IEC 17025, ISO 9001, and ISO 15189 separately: three manuals, three sets of SOPs, three piles of forms — all describing nearly the same things in slightly different words. It’s no wonder teams feel buried in paperwork.
Integration solves that. The goal isn’t to add more documents — it’s to create one unified system that meets the intent of all three standards without repetition or confusion.
Step 1: Start With a Single Quality (or IMS) Manual
Instead of separate manuals, build one Integrated Management System (IMS) Manual.
It should:
-
Define your lab’s quality policy and objectives.
-
Reference the relevant standards (ISO 9001, ISO/IEC 17025, ISO 15189).
-
Outline the structure of your management and technical operations.
-
Identify how each clause requirement is addressed within your procedures.
Pro Tip: Use clause mapping in your manual headers — e.g., “Document Control (ISO 9001 §7.5 / ISO 17025 §8.3 / ISO 15189 §4.3)” — so assessors from any accreditation body can easily navigate compliance.
Step 2: Merge Overlapping Procedures
Most overlap exists in management processes — document control, corrective action, risk management, internal audits, and management review.
Combine those into single procedures with universal applicability.
Example:
-
Instead of three separate “Corrective Action Procedures,” create one titled QP-CA-01: Corrective Action Procedure, referencing how it satisfies clauses from all standards.
-
Keep technical-specific SOPs (like test methods or calibration steps) under the technical annexes — those stay unique by necessity.
Step 3: Simplify Forms and Templates
Once you unify procedures, it’s time to clean up your forms.
You only need one version of each document type, such as:
-
Nonconformance Report (NCR) Form
-
Internal Audit Checklist
-
Training & Competence Evaluation Form
-
Risk Assessment Log
-
Equipment Calibration Record
In one integrated system I helped design for a clinical calibration lab, we reduced 120 templates down to 46 — without losing a single compliance element.
Pro Tip: Use document coding prefixes like “IMS-” (Integrated Management System) to make integrated forms easy to track.
Step 4: Centralize Document Control
Adopt a single process for creating, approving, distributing, and revising documents — regardless of which standard they support.
Assign one Document Controller or Quality Coordinator to manage:
-
Version control and approvals.
-
Access permissions (especially for medical/confidential files).
-
Regular document reviews.
Use one master Document Control Register listing all controlled procedures, work instructions, and records, with cross-references to each applicable ISO standard.
Step 5: Train Staff on the Unified System
Integration only works if everyone uses the same playbook.
Hold short awareness sessions explaining:
-
Why integration was done (to simplify, not complicate).
-
How to locate new documents or forms.
-
How to reference ISO clauses when needed.
Staff buy-in is key — the best system in the world fails if the team doesn’t understand it.
Common Mistakes to Avoid
-
Keeping three manuals “just in case.” That’s duplication, not integration.
-
Overwriting proven 17025 procedures to fit 9001 language. You’ll lose technical clarity.
-
Forgetting traceability. When merging, always preserve historical versions for audit continuity.
Key Takeaway
Your documentation framework is the backbone of your integrated system.
Done right, it turns three overlapping standards into one coherent, user-friendly structure that anyone in your lab — from technicians to top management — can navigate confidently.
Streamlining Processes and Audits (Operational Integration)
Once your documentation framework is in place, the next step is where integration really starts paying off — streamlining your processes and audits.
Every lab wants fewer audits, less paperwork, and smoother operations. Integrating ISO/IEC 17025, ISO 9001, and ISO 15189 lets you do exactly that by aligning how you plan, perform, check, and improve across all three systems.
Step 1: Combine Your Core Processes
When I work with labs running multiple standards, I often start by asking: “How many times a year do you perform an internal audit or management review?”
The answer is usually — too many.
You don’t need separate systems for each ISO standard.
Instead, build one shared operational cycle covering:
-
Document control and records
-
Internal audits
-
Management reviews
-
Corrective and preventive actions (CAPA)
-
Risk management and continual improvement
These are the backbone of all three standards. The difference lies only in context, not content.
Step 2: Integrate Your Internal Audit Program
Instead of performing three separate audits, design a single internal audit plan that checks compliance against ISO 9001, ISO/IEC 17025, and ISO 15189 together.
Use one cross-standard checklist, like this:
Process | ISO 9001 Reference | ISO 17025 Reference | ISO 15189 Reference | Audit Focus |
---|---|---|---|---|
Document Control | 7.5 | 8.3 | 4.3 | Records approved, controlled, and accessible |
Competence & Training | 7.2 | 6.2 | 5.1 | Evidence of authorization and evaluation |
Risk Management | 6.1 | 8.5 | 4.14 | Risk register maintained and reviewed |
Corrective Actions | 10.2 | 8.7 | 4.11 | Root causes identified and verified for effectiveness |
With this setup, each audit produces one report that satisfies all three accreditation bodies.
Pro Tip: Rotate auditors across disciplines (technical, quality, medical) so every area gets a balanced perspective — and your team develops broader ISO fluency.
Step 3: Run One Management Review Meeting
Management reviews are often duplicated unnecessarily — one for ISO 9001’s business goals, one for 17025’s technical review, and one for 15189’s patient focus.
But if you look closely, the agenda items are nearly identical.
An integrated management review should cover:
-
Quality objectives and KPIs
-
Internal audit results
-
Customer and patient feedback
-
Corrective actions and nonconformities
-
Competence and training
-
Resource needs
-
Risk and improvement opportunities
That single meeting fulfills all requirements — and gives leadership a 360° view of the lab’s performance.
Step 4: Consolidate Corrective Action and Risk Management Systems
When something goes wrong, the process for identifying, investigating, and correcting it is the same across standards.
So keep one Corrective Action Register and Risk Register.
Each entry can include a column for related clauses (e.g., “ISO 9001 §10.2 / ISO 17025 §8.7”).
This avoids parallel investigations and gives management a unified picture of trends and recurring issues.
Step 5: Align Operational KPIs
You don’t need three dashboards to track performance.
Develop shared KPIs that satisfy all standards simultaneously:
-
Turnaround time (quality + customer satisfaction)
-
Error rate / repeat nonconformities (17025 + 15189)
-
On-time equipment calibration (technical + resource management)
-
Training completion rates (competence + continual improvement)
By monitoring one integrated set of indicators, you reinforce the PDCA cycle across all standards without creating extra layers of work.
Common Mistakes to Avoid
-
Running three audits under three checklists. You’re tripling your workload for no benefit.
-
Ignoring technical depth. Don’t let 9001’s generality dilute 17025 or 15189’s rigor — keep their technical elements intact.
-
Failing to communicate changes. Integration requires clear coordination between departments, especially in hybrid labs (medical + calibration).
Pro Tip
When integration is done right, your audit prep becomes effortless.
In one multi-standard lab I supported, they reduced internal audit time by 35% and external audit prep time by half — just by using one checklist and one management review schedule.
Key Takeaway
Operational integration isn’t about merging systems on paper — it’s about creating one consistent way of working that fulfills every ISO expectation without duplication.
It’s smarter, faster, and it gives your team more time to focus on what really matters: reliable, accurate results.
Aligning Roles, Responsibilities, and Culture (People-Centered Integration)
Here’s something I’ve seen time and again: a lab’s integrated management system (IMS) looks great on paper — unified documents, shared audits, common procedures — but day-to-day operations still feel disjointed. Why?
Because the people running the system are still thinking in silos.
True integration doesn’t stop with paperwork. It happens when everyone in the organization — from the Quality Manager to the technicians — understands how their roles fit into one system, not three overlapping ones.
Step 1: Redefine and Clarify Roles
Start by mapping who does what across the standards. Many responsibilities overlap, so combining them reduces confusion and strengthens accountability.
Here’s a simple way to structure it:
Role | ISO 9001 Responsibilities | ISO/IEC 17025 Responsibilities | ISO 15189 Responsibilities | Integrated Role Summary |
---|---|---|---|---|
Quality Manager | QMS oversight | Document control, audits | Patient safety processes | Oversees entire IMS and ensures compliance across all standards |
Technical Manager | Operational performance | Technical competence | Laboratory practice | Manages technical quality and competence across all areas |
Compliance / Lab Manager | Customer satisfaction | Calibration/testing process | Sample management | Coordinates process alignment and accreditation maintenance |
Staff / Technicians | Process compliance | Method execution | Patient/sample handling | Follow unified procedures, ensure traceability, and report deviations |
This structure helps staff understand they’re not working for “the ISO 9001 system” or “the 17025 system.” They’re part of one continuous framework.
Step 2: Build a Cross-Standard Competence Matrix
In integrated systems, you’ll find staff performing activities that touch multiple standards — for example, a calibration technician who also supports medical device verification.
A cross-standard competence matrix keeps this under control by documenting which individuals are competent under which ISO contexts.
Example:
Employee | ISO 9001 Functions | ISO 17025 Functions | ISO 15189 Functions | Competence Verified By |
---|---|---|---|---|
J. Reyes | Internal Auditor | Equipment Calibration | Sample Testing | Technical Manager |
L. Cruz | Document Controller | Uncertainty Analysis | QA Records | Quality Manager |
Pro Tip: Train your Quality and Technical Managers together on all three standards — not separately. This builds shared understanding and smoother communication during audits.
Step 3: Create a “One-System” Culture
An integrated system only works when people believe in it.
Here’s how to build that culture:
-
Use shared terminology in all communication (say “IMS” instead of “QMS”).
-
Celebrate team wins that improve quality or efficiency, regardless of which standard they align with.
-
Include integration goals in individual performance reviews — for example, “Ensure cross-standard compliance for internal audits.”
-
Hold short, mixed-team sessions (quality + technical + medical) to discuss shared challenges.
In one multi-standard medical lab I helped, these 20-minute “integration huddles” led to faster corrective action closures and better understanding between technical and admin staff.
Step 4: Empower People, Don’t Burden Them
A common fear during integration is that roles will expand endlessly — “Now I have to do everything for three standards.”
That’s not the goal. Integration should make jobs easier by removing duplicated reporting, redundant approvals, and conflicting instructions.
If people see that the new system saves them time and makes their work clearer, they’ll support it wholeheartedly.
Step 5: Communicate Integration as an Advantage
Staff buy-in starts with communication.
Explain what integration means in practical terms:
-
One procedure to follow.
-
One audit checklist.
-
One management system that aligns all work.
When your team sees the purpose — smoother workflows, less paperwork, fewer surprises during audits — the mindset shift follows naturally.
Common Mistakes to Avoid
-
Neglecting role clarity. If people don’t know their new responsibilities, gaps reappear fast.
-
Keeping separate reporting lines. Dual hierarchies create confusion and conflict.
-
Forgetting to communicate benefits. Without understanding why you integrated, staff will revert to old habits.
Key Takeaway
Integration is 80% people and 20% paperwork.
When roles are clear, collaboration replaces confusion, and everyone works toward one purpose — delivering accurate, reliable, and traceable results under a unified system.
Once your culture and structure align, your ISO 9001, 17025, and 15189 systems stop feeling like separate projects — and start running like one cohesive, efficient engine.
Continuous Improvement and Performance Monitoring (Keeping the IMS Alive)
Once your integrated management system (IMS) is up and running, the real challenge begins — keeping it alive.
Integration isn’t a one-time project; it’s a living system that needs consistent review, data-driven improvement, and a bit of cultural discipline to stay effective.
I’ve seen beautifully integrated systems fall apart within a year because no one maintained momentum after accreditation.
The difference between a paper system and a high-performing one comes down to this: continuous improvement.
An integrated system means integrated metrics.
Instead of tracking performance separately for ISO 9001, ISO/IEC 17025, and ISO 15189, design one unified dashboard that reflects your entire lab’s health.
Here’s an example:
KPI | Relevance to 9001 | Relevance to 17025 | Relevance to 15189 | Measurement Frequency |
---|---|---|---|---|
Turnaround Time | Customer satisfaction | Service consistency | Patient care | Monthly |
Nonconformities Closed on Time | Improvement tracking | Root cause effectiveness | Quality system robustness | Quarterly |
Equipment Calibration Timeliness | Resource management | Traceability assurance | Method reliability | Monthly |
Staff Competence Evaluation Rate | Human resource control | Technical competence | Clinical validity | Semi-annually |
Customer Complaints Resolved | Feedback management | Service reliability | Patient focus | Ongoing |
Pro Tip: Display these KPIs visually in a digital dashboard or lab noticeboard — transparency builds accountability and keeps everyone focused on improvement.
Step 2: Use a Single Continuous Improvement Process
Don’t create three different improvement programs.
Instead, design one Continuous Improvement Log that records all improvement actions, regardless of which standard they relate to.
For each improvement initiative, document:
-
Description of issue or opportunity.
-
Root cause or background.
-
Proposed action.
-
Responsible person.
-
Timeline.
-
Verification of effectiveness.
You’ll quickly find that one action often satisfies multiple clauses.
For example, implementing a new sample tracking system improves traceability (17025), process control (9001), and patient safety (15189) all at once.
Step 3: Integrate Internal Audits and Management Reviews into Improvement
Every internal audit and management review should feed your continuous improvement cycle.
Here’s how to keep it simple:
-
Audit findings → CAPA log.
-
CAPA completion → management review agenda.
-
Review decisions → new improvement actions.
-
Actions implemented → verified at next audit.
That’s your PDCA (Plan–Do–Check–Act) cycle in action — one loop that satisfies all three standards.
Pro Tip: Schedule a brief “mini-review” every quarter focused solely on improvement metrics. It keeps your system dynamic between annual management reviews.
Step 4: Encourage Data-Driven Decisions
Integration means your lab collects more information than ever — audits, KPIs, risks, and customer feedback.
Don’t just file those reports; use them.
Ask questions like:
-
Where are most nonconformities happening?
-
Are we meeting turnaround time targets consistently?
-
What recurring risks keep showing up in audits?
Data trends reveal where your system is strong and where it needs tuning. That’s the essence of continual improvement.
Step 5: Keep Everyone Engaged
The most sustainable systems are the ones that keep people involved.
-
Share performance dashboards in monthly meetings.
-
Recognize departments that achieved improvements.
-
Encourage technicians to suggest efficiency ideas.
One calibration lab I supported implemented a “Quality Suggestion Wall” — any team member could post ideas for improving efficiency or accuracy. Over six months, 40% of those ideas became implemented improvements.
Pro Tip: Link improvement participation to individual performance reviews. It reinforces ownership.
Step 6: Reassess the System Annually
Once a year, step back and ask:
-
Are our KPIs still relevant?
-
Have the standards or customer expectations changed?
-
Is our documentation still lean and effective?
An annual IMS health check ensures your system evolves with your lab, not against it.
Common Mistakes to Avoid
-
Letting improvement logs gather dust. A stagnant log is a red flag for auditors.
-
Tracking too many metrics. Focus on a few meaningful ones that drive real change.
-
No follow-up. Actions mean little without verification of effectiveness.
Key Takeaway
A truly integrated system doesn’t just meet three standards — it creates a culture of learning and progress.
When continuous improvement becomes part of your lab’s DNA, ISO 9001, 17025, and 15189 stop being external checkboxes — they become internal habits.
That’s when integration turns from a compliance project into a performance advantage.
FAQs: Common Questions About Integrating ISO/IEC 17025, ISO 9001, and ISO 15189
Whenever I help labs merge their systems, the same few questions always come up. These are the real-world concerns teams have — not theoretical ones — so let’s address them clearly and practically.
Q1: Can one management system really cover all three standards?
Yes, absolutely. In fact, it’s not only possible — it’s the most efficient way forward.
Each of these standards was built on ISO’s same management principles. ISO 9001 provides the backbone (management and quality processes), while ISO/IEC 17025 and ISO 15189 layer in the technical and scientific details.
So, a single Integrated Management System (IMS) can cover all three if:
-
Your procedures reference the correct clauses.
-
Roles and responsibilities are clearly defined.
-
Your audits and reviews include all relevant requirements.
I’ve seen integrated systems successfully pass both accreditation and certification audits in the same week — using one manual and one audit report.
Q2: Will integration make audits harder or more complicated?
Not at all — it actually makes them easier.
Instead of three separate audits with overlapping questions, you conduct one comprehensive internal audit. The same applies to external ones — accreditation bodies often appreciate an integrated approach because it shows strong control and understanding.
The only trick is good planning. Build your internal audit checklist around shared clauses and ensure auditors are trained to recognize cross-standard compliance.
Pro Tip: Invite one assessor to cover multiple scopes if your accreditation bodies allow it — it saves time and avoids repetitive findings.
Q3: Do we need separate management reviews for each standard?
No, one integrated management review is enough — as long as it covers all standard requirements.
Here’s what a typical integrated review agenda includes:
-
Quality objectives and KPI results (ISO 9001 focus).
-
Competence, method validation, and traceability (ISO 17025 focus).
-
Patient results, turnaround times, and safety considerations (ISO 15189 focus).
-
Internal audit and corrective action updates.
-
Risk assessments and improvement actions.
With that single agenda, you’ve covered all three standards in one meeting.
Q4: How do we handle differences in terminology between standards?
You’ll notice small wording differences — ISO 9001 talks about “products and services,” ISO/IEC 17025 about “testing and calibration,” and ISO 15189 about “examinations.”
Don’t let that confuse your team.
Define all relevant terms in your Quality Manual glossary and apply them consistently throughout your documentation.
Auditors care about clarity, not semantics — if your team understands and uses terms consistently, you’re fine.
Q5: What’s the biggest challenge when integrating ISO/IEC 17025 and ISO 15189?
Without a doubt, it’s cultural and operational differences.
17025 labs are typically technical or industrial, while 15189 labs operate in healthcare environments with added ethical and patient safety layers.
To bridge that gap:
-
Focus on shared goals — accuracy, reliability, and traceability.
-
Maintain distinct records only where needed (e.g., patient confidentiality in 15189).
-
Encourage cross-training so staff understand both contexts.
Integration doesn’t mean erasing differences; it means managing them under one cohesive system.
Q6: How long does integration take?
It depends on your starting point:
-
If you already have ISO 9001 and 17025: integration can take 2–3 months.
-
If adding ISO 15189: expect 4–6 months, since clinical elements require additional validation and competence controls.
Start with clause mapping and document unification — those two steps alone resolve over half the workload.
Q7: Can small laboratories benefit from integration too?
Definitely.
Smaller labs often gain the most because integration cuts redundant work and streamlines communication. Instead of three separate quality roles or sets of procedures, you manage everything from one central system.
I’ve seen a five-person calibration lab run ISO 9001 and ISO/IEC 17025 in perfect sync with nothing more than one manual, one audit schedule, and one shared risk register.
Uniting Quality and Competence Under One System
If you’ve made it this far, you already understand that integrating ISO/IEC 17025, ISO 9001, and ISO 15189 isn’t just about compliance — it’s about building a smarter, leaner, and stronger laboratory system.
In every lab I’ve worked with, integration started as a paperwork exercise and ended as a complete mindset shift. People stopped asking, “Which standard does this belong to?” and started asking, “Does this improve how we work?”
That’s when you know your integration is truly alive.
Key Takeaways
Here’s what matters most:
-
You don’t need three systems. One well-structured IMS can cover all requirements with ease.
-
Integration builds efficiency. Shared documentation, unified audits, and streamlined training save time and reduce stress.
-
Culture makes it work. People, not procedures, keep integration alive — through collaboration, awareness, and accountability.
-
Continuous improvement keeps it strong. KPIs, management reviews, and data analysis should drive progress year after year.
When done right, integration transforms your lab from reactive to proactive — one system, one direction, one team.
Real-World Insight
One of my clients, a hospital laboratory accredited to ISO 15189 and ISO/IEC 17025, used to run separate systems with two different quality manuals.
After we integrated them into a single management framework, they cut administrative workload by half, improved audit performance, and, most importantly, increased trust between technical and medical teams.
Integration didn’t just simplify their operations — it elevated their performance.
Final Thought
ISO standards were never meant to compete. They were designed to complement one another — to help organizations create reliable, competent, and continuously improving systems.
Bringing ISO 9001’s structure, ISO/IEC 17025’s technical rigor, and ISO 15189’s medical focus together doesn’t just make compliance easier — it makes excellence sustainable.
Your Next Step
If your laboratory wants to streamline multiple accreditations or certifications:
Download QSE Academy’s Integrated Management System (IMS) Mapping Template — it shows clause-by-clause overlaps between ISO 9001, ISO/IEC 17025, and ISO 15189.
Or schedule a consultation with our ISO experts. We’ll help you design a unified, audit-ready system tailored to your lab’s operations, saving you months of redundant work.
Your lab doesn’t need three systems — just one that works smarter.
And once you build it, you’ll wonder how you ever managed without it.
I hold a Master’s degree in Quality Management, and I’ve built my career specializing in the ISO/IEC 17000 series standards, including ISO/IEC 17025, ISO 15189, ISO/IEC 17020, and ISO/IEC 17065. My background includes hands-on experience in accreditation preparation, documentation development, and internal auditing for laboratories and certification bodies. I’ve worked closely with teams in testing, calibration, inspection, and medical laboratories, helping them achieve and maintain compliance with international accreditation requirements. I’ve also received professional training in internal audits for ISO/IEC 17025 and ISO 15189, with practical involvement in managing nonconformities, improving quality systems, and aligning operations with standard requirements. At QSE Academy, I contribute technical content that turns complex accreditation standards into practical, step-by-step guidance for labs and assessors around the world. I’m passionate about supporting quality-driven organizations and making the path to accreditation clear, structured, and achievable.