FKC-III Stainless Steel Airborne Microbial Sampler

Overview

The FKC-III Stainless Steel Airborne Microbial Sampler is a precision-engineered, multi-orifice impactor designed for quantitative assessment of viable airborne microorganisms in controlled environments. It operates on the principle of inertial impaction—drawing ambient air at a calibrated flow rate through an array of precisely sized stainless steel micro-orifices, directing viable particles onto the surface of standard 90 mm agar-filled Petri dishes with minimal overlap and maximal biological recovery efficiency. Its design adheres to the fundamental sampling criteria outlined in ISO 14698-1:2003 (“Biocontamination control — Part 1: General principles and methods”), particularly the requirement for isokinetic sampling: the inlet jet velocity (0.38 m/s) matches typical unidirectional airflow velocities in ISO Class 5–8 cleanrooms, minimizing particle bounce and ensuring representative bioaerosol capture. The sampler’s low-noise diaphragm pump and embedded microcontroller enable stable, repeatable operation across variable environmental conditions without mechanical drift.

Key Features

• Stainless steel (AISI 304) sampling head with corrosion-resistant, autoclavable construction—compatible with ethanol wiping, hydrogen peroxide vapor (HPV), and dry heat sterilization protocols.
• 304 stainless steel micro-orifice plate engineered for uniform jet velocity distribution, reducing colony coalescence and improving colony-forming unit (CFU) resolution during incubation.
• Programmable volumetric sampling from 0.001 to 9.999 m³, supporting both short-duration spot checks and extended environmental monitoring campaigns.
• Integrated digital controller with real-time flow monitoring and elapsed time display; no external PC required for basic operation.
• Compact, portable form factor (4 kg total mass) with ergonomic handling—designed for routine use in cleanroom pass-throughs, isolators, and aseptic processing suites.
• DC 12 V power input (center-positive polarity) enables flexible deployment via laboratory-grade AC/DC adapters or mobile battery packs compliant with IEC 61000-4-5 surge immunity standards.

Sample Compatibility & Compliance

The FKC-III accepts industry-standard 90 mm × 15 mm Petri dishes filled with microbiological growth media—including Tryptic Soy Agar (TSA), Sabouraud Dextrose Agar (SDA), and malt extract agar—without adapter modification. Its performance validation aligns with ISO 14698-1 Annex B guidelines for microbial sampler evaluation, including tests for collection efficiency (≥95% for ≥1 µm particles under laminar flow), repeatability (RSD < 15% across replicate runs), and recovery linearity over defined concentration ranges. While not certified to ISO 14698-2 (validation protocol specification), the instrument supports user-led qualification per EU GMP Annex 1 (2022), FDA Aseptic Processing Guidance (2004), and PDA Technical Report No. 13 (Sterile Product Manufacturing). Documentation packages include calibration certificates traceable to national metrology institutes and IQ/OQ templates aligned with GAMP 5 principles.

Software & Data Management

The FKC-III operates as a standalone hardware platform with no proprietary software dependency. All sampling parameters—including start/stop time, total volume, and flow confirmation—are logged locally on the device’s non-volatile memory and displayed on the integrated LCD. For regulated environments requiring audit trails, users may integrate manual entry into validated electronic lab notebooks (ELNs) or LIMS platforms compliant with 21 CFR Part 11 (electronic signatures, secure audit logs, and data integrity controls). Optional RS-232 or USB-to-serial adapters (not included) permit automated data export to CSV-compatible spreadsheets for trend analysis—subject to site-specific computer system validation per ALCOA+ principles.

Applications

• Environmental monitoring (EM) programs in pharmaceutical Grade A–D cleanrooms and isolator systems.
• Biotechnology facility qualification (IQ/OQ/PQ) and routine surveillance of HVAC terminal filters and air handling units.
• Medical device manufacturing compliance with ISO 13485:2016 and FDA 21 CFR Part 820.
• Research laboratories assessing airborne fungal spore dispersion, bacterial aerosol generation, or antiseptic efficacy testing.
• Food production facilities performing hygiene verification per ISO 22000 and HACCP-based environmental controls.

FAQ

Does the FKC-III meet ISO 14698-1 requirements for isokinetic sampling?

Yes—the inlet velocity of 0.38 m/s is intentionally matched to common cleanroom airflow velocities (0.3–0.5 m/s), satisfying the isokinetic condition specified in ISO 14698-1 Clause 6.3.2.

Can the sampling head be sterilized in an autoclave?

Yes. The AISI 304 stainless steel construction withstands repeated autoclaving cycles at 121 °C for 15–20 minutes without dimensional or surface integrity loss.

Is flow calibration traceable to national standards?

Calibration is performed using primary-standard dry calibrators (e.g., Brooks 5850E or Mesa Labs DryCal) with NIST-traceable certificates; users are advised to re-calibrate annually or after maintenance.

What is the maximum particulate load the sampler tolerates without clogging?

The device maintains operational integrity up to 1×10⁸ particles/m³ @ 0.5 µm or 0.2 mg/m³ total suspended particulate—conditions typical of non-classified support areas adjacent to clean zones.

Does the FKC-III support remote monitoring or network integration?

No native Ethernet/Wi-Fi capability exists; however, third-party programmable logic controllers (PLCs) or industrial gateways can interface via its analog/digital I/O signals (available upon request from technical support).