Complete sterile cleanroom sampling swab in closed clear tube with blue cap

Microbiological Environmental Monitoring Products

Sterile Sampling Swab

A gamma-sterilized, low-particle polyester swab in a closed tube system for microbial sampling of small and difficult-to-access cleanroom surfaces.

Low-Particle Knitted Tip
Closed Sampling System
Gamma-Sterilized Format
Hard-to-Reach Surface Access

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Product Introduction

The Sterile Sampling Swab combines a knitted polyester tip, a rigid polymer shaft and a secure screw-cap tube in one controlled sampling assembly. The low-shedding tip reaches filling needles, tubing interfaces and equipment recesses that cannot be monitored effectively with contact plates. Premoistened and closed-incubation configurations reduce handling steps, while staged sterile wrapping supports transfer into controlled areas.

Key Features

Knitted polyester provides effective pickup with low particle and fiber release.

A slim rigid shaft reaches narrow equipment features and irregular surfaces.

The cap-mounted swab returns directly to its tube after sampling to contain the specimen.

Gamma-sterilized, individually identified formats support traceable cleanroom use.

Customer Product Concerns

Swab monitoring must recover microorganisms from confined surfaces without adding fibers, compromising sterility or losing sample traceability.

Contact plates cannot reach narrow bores, curved fittings or recessed equipment features.The slender shaft and compact knitted tip access small, irregular and difficult-to-reach locations.

Dry swabs give inconsistent recovery from low-bioburden surfaces.A controlled premoistened format improves wetting and transfer from dry equipment surfaces.

Loose fibers can contaminate a critical process area.Knitted low-particle polyester limits lint compared with conventional wound-fiber tips.

Multiple transfer steps increase contamination and identification risk.The cap-mounted swab, closed tube and individual coding keep collection, transport and incubation together.

Typical Applications

Filling needle and nozzle samplingTubing connection monitoringEquipment recess surface checksIsolator and RABS environmental monitoring

Technical Parameters

Typical construction values for a sterile closed-system environmental-monitoring swab are listed below.

Core Material	Knitted polyester swab tip, polypropylene shaft and clear polypropylene tube
Panel Thickness	0.8-1.2 mm nominal tube wall
Effective Width	5-8 mm nominal swab tip width
Maximum Length	Up to 165 mm overall closed length
Steel Facing Thickness	0.7-1.0 mm equivalent cap and tube component wall
Core Density	900-950 kg/m³ for polypropylene components
Thermal Conductivity	0.10-0.22 W/(m·K) for polypropylene components
Surface Finish	Low-particle knitted white tip with smooth clear tube and blue ribbed cap
Joint Type	Threaded leak-resistant cap with integrally retained swab shaft
Customization	Available based on the intended application and operating environment.

Available Options

Dry or premoistened tipSaline or selected neutralizing solutionSingle or staged sterile wrappingIndividual 2D-code identification

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