Pharmaceutical
Product-safety, clean utilities and contamination control require segregated sampling and clear distinction between food-grade lubricant conformance and machine condition.
Pharmaceutical programmes should connect equipment criticality, credible failure modes, representative samples, routine and triggered tests, response ownership and maintenance feedback.
Design the programme around how the assets fail.
Pharmaceutical facilities use compressors, vacuum pumps, gear drives, HVAC chillers and utility systems where leakage can affect product or clean areas. Approved lubricant status is separate from in-service condition.
Use this guide to scope an oil-analysis programme; then confirm equipment-specific limits, methods and safety controls with the laboratory, OEM and site engineering team.
What to test—and why.
Routine panels create comparable history. Triggered tests answer a focused question after a trend change, inspection finding or operating event.
| Equipment | Fluids | Primary risks | Routine tests | Triggered / advanced tests | Sampling approach |
|---|---|---|---|---|---|
| Clean-air and utility compressors | Approved compressor oil | Oxidation, condensate, wear, product-risk leakage | kinematic viscosity, acid number, karl fischer water | elemental analysis icp oes, ftir oil condition monitoring | Use a dedicated point outside clean exposure and preserve sample traceability. |
| Granulators, mixers and packaging drives | Food/pharma-grade gear oil and grease | Wear, wrong lubricant, washdown ingress | elemental analysis icp oes, kinematic viscosity, karl fischer water | pq index, analytical ferrography | Sample segregated compartments and document approved product identity. |
| Chillers and HVAC systems | Refrigeration oil, compressor oil, coolant | Moisture, acidity, refrigerant interaction, corrosion | acid number, karl fischer water, kinematic viscosity | elemental analysis icp oes, coolant ph | Follow refrigeration and pressure safety procedures; avoid atmospheric moisture exposure. |
Controls that make the data useful.
- 01Separate regulatory lubricant status from condition data
- 02Use dedicated tools to prevent cross-contamination
- 03Link results to change control and maintenance records
- 04Escalate any product-contact leakage through site quality procedures
Decisions the programme should improve.
- 01Documented lubricant control
- 02Reduced contamination risk
- 03Planned utility maintenance
- 04Stronger audit traceability
Build a closed evidence-to-action loop.
A test panel becomes a reliability programme only when the sample, interpretation, response and field outcome remain connected to the same asset and compartment.
| Stage | Control | Evidence created | Decision |
|---|---|---|---|
| 1 · Baseline | Confirm asset, compartment, fluid, method, point and operating state | Comparable new or stable in-service reference | Define normal variability and initial interval |
| 2 · Routine surveillance | Collect at a fixed risk-based interval from the documented point | Trend of fluid condition, contamination and wear | Continue, monitor or request focused confirmation |
| 3 · Exception diagnosis | Use mechanism-specific tests, secondary points, filters and companion technologies | Independent evidence for or against the failure hypothesis | Protect, inspect, correct or revise the hypothesis |
| 4 · Verification | Repeat comparable evidence after maintenance | Post-action condition and rate of change | Close the work order or escalate |
| 5 · Programme learning | Record inspection findings, false positives and missed detections | Asset-specific failure signatures and improved rules | Change point, panel, interval, limit or procedure |
Translate severity into a defined response.
These are workflow classes—not universal pass/fail limits. Asset consequence, rate of change and site safety procedures control the urgency.
| Class | Typical evidence pattern | Minimum review | Possible response |
|---|---|---|---|
| Stable / Normal | Comparable results remain within the justified baseline and no corroborating distress is present | Confirm route and context are complete | Continue the planned interval |
| Monitor | A small deviation, unusual rate of change or incomplete contextual explanation | Check sample, top-up, maintenance and companion indicators | Clarify data, add one focused test or shorten the interval |
| Abnormal / Investigate | Unsatisfactory fluid, contamination or wear evidence with a credible developing mechanism | Confirm promptly using independent evidence | Inspect, control the source and plan corrective work |
| Critical / Urgent review | Rapid, severe or corroborated change with material equipment or safety consequence | Immediate qualified operational and engineering review | Apply site procedures; protect people and equipment before diagnosis continues |