World-Class Microbiological & Environmental Testing Capabilities

At C.G. Laboratories, Inc., our 19,000-square-foot facility across two sites in Granbury, Texas, houses state-of-the-art analytical equipment, precision environmental aging chambers, steam autoclaves, and ISO Class cleanroom systems. Engineered to support medical device manufacturers globally, our laboratory infrastructure adheres strictly to FDA 21 CFR Part 820, ISO 13485:2016, MDSAP, and ICH regulatory standards.

Environmental Aging & Stability Chambers (ICH Standards)

Accelerated aging and real-time stability testing are critical for establishing packaging integrity, material durability, and shelf-life expiration dates under ISO 11607 and ASTM F1980 protocols. Our Hotpack stability chambers maintain precise temperature and relative humidity (RH) control mapped to ICH guidelines.

Chamber Profile Temperature (°C) Relative Humidity (RH) Primary Application
Real-Time Ambient (RT) 25°C ± 2°C Ambient / No RH Control Real-time package & product shelf-life validation
Accelerated Thermal (Acc) 55°C ± 2°C Ambient / No RH Control Rapid thermal stress & accelerated aging studies
Accelerated Climatic (Acc RH) 43°C ± 2°C 70% - 80% RH ± 5% High-humidity accelerated barrier integrity testing
Controlled Room Temp (CRT) 25°C ± 2°C 55% - 65% RH ± 5% ICH Standard intermediate humidity stability studies

Sterilization Autoclaves & Precision Incubation Systems

Our microbiology laboratory is outfitted with calibrated, industrial-grade autoclaves and multi-temperature incubators to ensure reliable sterilization validation, sterility testing, bioburden determination, and bacteriostasis/fungistasis (B/F) testing.

Steam Sterilization Units

Fully validated Steris Steam Autoclaves and Getinge Steam Autoclaves configured for custom cycle development, steam sterilization validation (ISO 17665), and terminal sterilization of heat-stable devices.

Multi-Zone Incubators

Dedicated incubation units accommodating standard microbial growth requirements:

  • Precision Incubator: 20°C to 25°C
  • Labline Incubator: 30°C to 32°C
  • Equatherm Incubator: 32°C to 35°C
  • VWR Incubator: 35°C to 37°C
  • VWR High-Temp Incubator: 55°C to 60°C

Low-Temperature Storage

Frigidaire Low-Temp Freezers (-15°C to -30°C) ensuring secure, temperature-monitored sample retention, biological indicator storage, and reagent preservation under full chain-of-custody protocols.

Cleanroom Containment & Analytical Testing Instrumentation

For sensitive microbial testing, hydrogel manufacturing, and mechanical packaging validation, C.G. Laboratories maintains controlled environmental spaces and analytical instruments calibrated to NIST-traceable standards.

Laminar Flow Hood Class I: ISO Class 5 air quality environment for sterile transfer and sample preparation.
Labconco Biosafety Cabinet Class II: Personnel, product, and environmental protection during bio-contaminant processing.
Lloyd Tensile Tester Plus: Precision physical integrity testing for package seal strength (ASTM F88) and tensile properties.
MetOne Airborne Particle Counter: Cleanroom environmental classification monitoring and verification (ISO 14644).
Sartorius Analytical Balance: Ultra-precise gravimetric measurements for bioburden recovery and dosage calculations.
Precision Convection Ovens & Optical Microscopy: Thermal treatment, sample drying, and morphological examination using AmScope optical systems.
ISO-Certified Microbiology Laboratory Infrastructure at C.G. Laboratories
ISO 13485:2016 Certified Microbiology Testing Facility
Hydrogel Contract Packaging and Manufacturing Infrastructure
Cleanroom Packaging & Hydrogel Manufacturing Technology

Rigorous Calibration & Scientific Expertise

Every piece of equipment in our Granbury laboratory undergoes rigorous Installation Qualification (IQ), Operational Qualification (OQ), and Performance Qualification (PQ). Combined with routinely scheduled calibration against NIST standards, our operational management guarantees accurate, repeatable data to support regulatory submissions (510(k), PMA, CE mark, and MDSAP).

With over 40 years of company history and 90+ years of combined scientific team experience, C.G. Laboratories provides technical consultation, custom validation protocol design, and rapid testing execution tailored to international medical device requirements.

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Partner with an ISO 13485:2016 accredited testing lab for your environmental aging, sterilization validation, or contract packaging requirements. Talk directly with our technical scientists today.

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