Microbiological risk is often introduced through materials that are assumed to be clean. Elastomers, plastics, and packaging components can carry bioburden or endotoxin that is not detected until later in the manufacturing process, where the impact is more significant.
Testing these materials requires more than applying standard methods. Recovery from surfaces, internal pathways, and complex geometries can be inconsistent, and results are highly dependent on how samples are prepared and extracted.
We approach packaging and material microbiology as an extension of the overall contamination control strategy.
What We Test
We support microbiological and material evaluation of elastomeric components, plastic materials, container closure systems, and single-use assemblies. This includes materials used in direct product contact as well as components within fluid pathways and manufacturing systems.
Testing programs are structured for supplier qualification, incoming material control, and investigation support.
Microbiological Evaluation of Materials
Standard enumeration and specified organism methods can be applied to materials, but recovery is often limited by surface characteristics and geometry. Extraction-based approaches are frequently required to recover organisms from surfaces and internal pathways.
We design test approaches that reflect how the material is actually used, rather than forcing it into a method designed for bulk liquids.
Biocompatibility and Material Risk
Microbiological quality is only one aspect of material suitability. Materials that contact drug product or patient pathways must also be evaluated for biological reactivity and compatibility.
We support integration of microbiology with biocompatibility programs, including USP <87>, <88>, and ISO 10993 frameworks, ensuring that microbial risk, endotoxin, and biological response are considered together rather than in isolation.
This integrated approach is particularly important for:
- elastomeric closures and seals
- fluid path materials and tubing
- single-use systems and assemblies
Particulate and Contamination Risk
Packaging and elastomeric components can also contribute particulate matter to a product. These particles may be non-viable, but in some cases may be associated with microbial contamination or process-related issues.
We support evaluation of particulate risk in conjunction with microbiological testing, helping to determine whether materials are contributing to visible or subvisible contamination events.
Program Design
Material microbiology programs must align with both supplier controls and finished product risk. We support sampling strategies, extraction methods, and documentation approaches that integrate with existing quality systems and regulatory expectations.
Standards and Regulatory Framework
Programs are aligned with:
- USP <61> and <62> for microbial limits
- USP <85> where endotoxin risk is relevant
- USP <87> and <88> for biological reactivity
- ISO 10993 for material evaluation
- FDA cGMP expectations for material control
Start the Conversation
If you are qualifying new materials or investigating a contamination source, we can help design a testing program that reflects real-world use.
