ISO/IEC 17025:2017 calibration + biological testing · Valid through 2027
BSL-2 and BSL-3 compliance is built on documentation
The Biosafety in Microbiological and Biomedical Laboratories (BMBL) standard from CDC and NIH defines what BSL-2 and BSL-3 facilities must demonstrate. Engineering controls — biosafety cabinets, sealed rooms, directional airflow, HEPA-filtered exhaust. Administrative controls — biosafety officer oversight, IBC review, personnel training, SOP compliance. Personal protective equipment requirements. Surveillance and environmental monitoring. Documented decontamination protocols.
Allometrics serves the engineering-control and surveillance side of this — biosafety cabinet certification, cleanroom certification, environmental monitoring, equipment calibration. The Allometrics Group provides the recurring documentation and on-demand support BSL-2 / BSL-3 operations need, drawing on the largest number of accredited technicians in the Southeastern United States.
"Biological safety cabinets must be tested and certified at installation, after relocation, after maintenance or repairs that affect operational integrity, and at intervals not exceeding twelve months."
— BMBL 6th Edition, Section 5 (paraphrased)
The BSL-2 / BSL-3 services map
| Service | What it covers | Spoke page |
|---|---|---|
| Biosafety cabinet certification | NSF/ANSI 49 certification of Class I, II (Type A1/A2/B1/B2/C1), and Class III biosafety cabinets. Specialized BSL-3 protocols. NSF/ANSI 49 Field Certifier credentialed technicians. | BSC certification → |
| Cleanroom certification | Annual recertification of BSL-2 / BSL-3 controlled spaces. Pressure cascade verification (negative for BSL-3 containment), HEPA exhaust integrity, particle count verification where applicable. | Cleanroom certification → |
| Cleanroom commissioning | New BSL-2 / BSL-3 facility commissioning. IQ/OQ/PQ documentation, NEBB-credentialed TAB, ISO 14644 classification. Delivered by Precision Biotech Solutions. | Cleanroom commissioning → |
| Environmental monitoring | Viable air, surface, and personnel sampling under A2LA Cert 7533.01 (Taylor Lake Laboratories). Where BSL surveillance protocols include environmental monitoring requirements. | Microbial testing → |
| Decontamination protocols | BSC decontamination per NSF/ANSI 49 Annex G — vapor-phase hydrogen peroxide, formaldehyde, where required. Coordinated by Allometrics or vetted partner. | Decontamination → |
| Equipment calibration | A2LA Cert 2039.01 calibration for BSL-2 / BSL-3 instrumentation — pressure transmitters, temperature sensors, autoclave verification, biosafety alarm verification. | Calibration hub → |
| Air balancing (TAB) | NEBB-credentialed TAB for BSL-3 negative-pressure containment HVAC. Delivered by Precision Biotech Solutions. | Air balancing / TAB → |
| Fume hood certification | ANSI/ASSP Z9.5 verification for BSL-2 / BSL-3 chemistry hoods. | Fume hood certification → |
What BSL-3 specifically requires
BSL-3 facilities operate under additional engineering and operational requirements beyond BSL-2:
- Negative pressure containment — the BSL-3 lab must maintain negative pressure relative to surrounding spaces, with pressure differentials documented and continuously monitored.
- Directional airflow — air flows from low-hazard to high-hazard zones, never reversed. Airflow visualization (smoke study) verifies pattern.
- HEPA-filtered exhaust — exhaust air either HEPA-filtered before discharge or routed to systems where HEPA filtration is verified.
- Sealed envelope — penetrations sealed; access controlled through anteroom; equipment passages designed to prevent ingress / egress contamination.
- Specialized BSC protocols — Class II Type B2 (100% exhaust) cabinets often required, ducted directly to building exhaust. Annual NSF/ANSI 49 certification with site-specific airflow verification.
- Decontamination cycle — sealed envelope must support whole-room decontamination (vapor-phase hydrogen peroxide or formaldehyde) when needed.
The Allometrics Group handles the engineering-control verification and certification. The institution's biosafety officer handles the administrative compliance — IBC review, training records, SOP compliance, incident response. Allometrics' work supports the biosafety officer's documentation; we don't replace it.
Academic medical center BSL-3 research context
Major academic medical centers, NCI-designated cancer centers, medical schools, and university-affiliated research operations across the Texas Medical Center run BSL-3 enhanced research facilities under institutional biosafety committee oversight. The engineering-control documentation requirements scale with the institution's research portfolio. Allometrics' integrated cleanroom + BSC + viables + calibration capability is designed to support the engineering-control side of these programs without requiring the institution to coordinate across three or four separate vendors.
Allometrics' biosafety practice supports BSL-3 facility commissioning, ongoing recertification, and on-demand response when units fail certification or when decontamination is required — including specialized SOP capability for high-containment work and direct technical engagement with biosafety officers at academic medical centers and research institutions.
Audit-time guarantee. If a BSC certification, cleanroom certification, or biosafety-related calibration we delivered is challenged in an IBC, IRB, NIH OLAW, AAALAC, USDA, CDC select-agent, or sponsor audit, we will address it.