| Field | Value |
|---|---|
| Document ID | QC-UTIL-001 |
| Title | Compressed Air Quality Specification |
| Document Type | Authoritative QC Specification |
| Owner | Quality Unit (QU) |
| Approver | Quality Unit (QU) |
| Effective Date | YYYY-MM-DD |
| Version | v1.1 |
| Change Control Reference | CC-XXXX |
This specification establishes objective quality classifications, measurable acceptance criteria, and defined decision thresholds governing compressed air used in GMP-relevant operations.
This requirement mitigates risk of particulate, oil, moisture, and microbial contamination that could impact product identity, purity, strength, or composition.
Failure to control compressed air used in product-contact environments exposes the firm to adulteration risk under 21 CFR Part 111 and constitutes loss of facility control required under GMP.
Applies To: All compressed air systems supplying GMP-designated areas for product-contact (Class A) and non-product-contact (Class B) applications.
Excludes: Instrument-only pneumatic systems fully segregated from GMP production environments.
Compliant State: All applicable acceptance criteria satisfied and documented.
Nonconforming State: One or more objective acceptance limits exceeded.
Invalid State: Required monitoring or testing record missing, incomplete, or unverifiable.
Escalation Trigger: Objective condition requiring mandatory QMS process entry.
Stop-Execution Condition: Execution is prohibited when Class A air exceeds defined limits at point-of-use during open product exposure.
| Attribute | Compliant State | Nonconforming State | Invalid State | Escalation Trigger | Required QMS Process Entry | QU Authorization Required? |
|---|---|---|---|---|---|---|
| Particulate (Class A) | ≤ ISO 8573-1 Class 2 | Exceeds ISO Class 2 | Test record missing | Exceedance at point-of-use serving exposed materials | Deviation + Quality Defect | Yes |
| Oil (Class A) | ≤ 0.01 mg/m³ | Exceeds 0.01 mg/m³ | Test record missing | Any exceedance at point-of-use | Deviation + Quality Defect | Yes |
| Moisture (Class A) | ≤ -40°F pressure dew point | Dew point above -40°F | Monitoring record missing | Dew point above limit during open product exposure | Deviation + Quality Defect | Yes |
| Microbial (Class A) | 0 CFU per validated sample | ≥1 CFU detected | Sampling record missing | Any detection at point-of-use | Deviation + Quality Defect | Yes |
| Particulate/Oil/Moisture (Class B) | Meets ISO 8573-1 Class 4 minimum | Exceeds ISO Class 4 | Monitoring record missing | Exceedance persisting >24 hours | Deviation | No |
| Trigger Condition | Execution May Continue? | Required Action | QMS Process Entry | Workflow (W)? | QU Authorization (A)? | Required Record |
|---|---|---|---|---|---|---|
| Compliant State | Yes | Continue operation | None | No | No | Compressed Air Monitoring Log |
| Nonconforming (Class B) | Yes | Corrective action required | Deviation | Yes | No | Deviation Record |
| Nonconforming (Class A) | No | Stop affected product-contact use immediately | Deviation + Quality Defect | Yes | Yes | Defect Record + QU Authorization |
| Invalid State | No | Invalidate data | Deviation | Yes | No | Deviation Record |
When objective limits are exceeded, Deviation entry is mandatory.
When Class A contamination risk condition occurs, Quality Defect entry is mandatory.
When systemic or repeated failure is identified, CAPA entry is mandatory.
When system redesign or filtration modification occurs, Change Control entry is mandatory.
E — Execution: Authorized personnel perform monitoring and document results.
W — Workflow: When objective limits are exceeded, QMS workflow entry is mandatory.
A — Authorization: Quality Unit authorization is required prior to material disposition or system modification decisions.
Compliant: All classification criteria satisfied.
Nonconforming: Any objective limit exceeded.
Invalid: Required monitoring or testing documentation missing.
Escalation Trigger: Class A contamination condition or defined recurrence threshold.
Stop-Execution Condition: Any Class A exceedance at point-of-use during open product exposure.
Change Control entry is required for modifications to compressed air classification, filtration design, dryer configuration, monitoring parameters, or distribution architecture. Independent Quality Unit approval is required prior to implementation. No implementation is permitted without QU authorization.