Mesa Labs BI Contract Testing Services
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Mesa Labs offers Steam and EO D-value or Survival/Kill testing in state-of-the-art BIER Vessels. D-value procedures used follow USP/ISO and can be obtained via Spearman Karber (fraction negative) method, Survivor Curve (direct enumeration) or with Stumbo-Murphy-Cochran. Raven can inoculate and perform D-value analysis on small items (e.g. coupons or stoppers) or we can verify a competitor's claim for D-value, z-value, and population. Isolate identification services available for most aerobic samples. A summary of Mesa's testing services are listed below:
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Chemical Indicator Testing
- Label Claim Testing
- Product Development

Commercial Biological Indicators (BIs)
- Certificate of Analysis Verification
- BI Culturing
- Population Determination
- Identification/Purity Testing
- D-value Testing
- Steam
- Ethylene Oxide (EO)
- Dry Heat
- H2O2
- z-value Testing
- Survival Kill Verification
Custom BI Development
- Ampoule Filling for Self-Contained BIs
- BI Development for Novel Sterilization Process
- Inoculation of Client Provided Substrate
- Population and Resistance Characterization
Custom Batch Production
- Environmental Isolate Growth and Characterization Testing
- Contract Batch Production (spore forming non-pathogenic bacteria)
Pharmaceutical
- Solutions
- D-value and z-value Testing
- Bioburden Testing

- Stopper/Septa
- D-value and z-value Testing
- Custom Inoculation for Sterilization Cycle Validation Studies
Controlled Drugs
- DEA Certificate for testing on narcotics, stimulants and depressants (Schedules 2, 2N, 3, 3N, 4, 5)
Steam Autoclave Testing
- Temperature Mapping
- Calibration
- Cycle Development
Additional Services
Our testing laboratory will gladly work with you to develop a testing program tailored specifically to the needs of your company. To inquire about our service capabilities and pricing, please contact us.
D-value procedures used follow USP/ISO and can be obtained via Spearman Karber (fraction negative) method, Survivor Curve (direct enumeration) or with Stumbo-Murphy-Cochran.
Chain of Custody Form for Materials to be submitted to for testing