The objective of C.G. Laboratories, Inc. is to offer Service and Guidance…

Medical Device Laboratory

Our ISO 13485 Certified Laboratory Department is a well-equipped facility with a staff that holds a combined 90+ years of experience servicing the medical device industry. C.G. Laboratories, Inc. is committed to sound scientific principles.

  • Aging Study/Stability Study
  • Biological Indicator
  • Identification
  • Product Sterility
  • Validation
  • Aqueous Biocide
  • Bioburden Testing

  • Environmental

  • Package Integrity

  • Product Testing

  • Water Testing


Medical Device Decontamination

C.G. Laboratories, Inc. has been a leader in the decontamination of medical devices since 1998. We offer decontamination of your medical devices or other products that have been contaminated and potentially exposed to pathogens.

  • Ethlyene Oxide

  • Steam

  • Custom Processes

  • Liquid

  • Gamma Radiation


Contract Packaging

C.G. Laboratories, Inc. offers a wide variety of turn-key contract packaging services to fit your packaging needs. Our services range from sterile medical devices to non-sterile products. Getting your product to market quickly and efficiently.

  • Controlled Packaging areas
  • Sterilization of Product

  • Distribution

  • Large Warehouse

  • Automated Equipment Systems

  • Regulation Testing


About Us

Dr. Glenn Crum, president of C.G. Laboratories, Inc., holds a Bachelors of Science degree from Texas A&M University and a Masters and Doctorate from the University of North Texas. Before opening C.G. Laboratories, Inc., Dr. Crum worked with Johnson & Johnson in microbiology research. His work included microbial research on antimicrobial agents and new product development. Dr. Crum also worked with cobalt radiation sterilization, microbiology testing, chemistry testing, and ethylene oxide operations.

Dr. Crum founded C.G. Laboratories, Inc. in 1983 with the objective of offering service that meets customer requirements and provides guidance that exceeds customer expectations. The laboratory offered medical device testing that included product sterility, pre-sterilized bioburden, environmental monitoring and sterilization validations. In 1987, Dr. Crum added additional services such as on-site audits for good manufacturing practices. In 1996, C.G. Laboratories, Inc. was relocated to Granbury, Texas and expanded its services to include packaging medical devices, sterilization and distribution of medical devices for various companies worldwide.

Our Standards

Current United States Pharmacopeia is the official pharmacopeia of the United States, published dually with the National Formulary as the USP-NF. Prescription and over–the–counter medicines and other health care products sold in the United States are required to follow the standards in the USP-NF. USP also sets standards for food ingredients and dietary supplements.
American Standard Test Methods, develops and publishes standards detailing international standards and technical standards for a wide range of materials, products, systems, and services.
Association for the Advancement of Medical Instrumentation, develops and publishes standards detailing the proper production quality for medical instruments and the procedures in which they are used.
ISO 13485 certification and standards for Medical Device Testing that is an Internationally recognized standard of Quality.
Publishes standardized, chemical and microbial analysis methods designed to increase confidence in results of chemical and microbiologic analyses. Government agencies and civil organizations often require that laboratories use official AOAC methods.
Stability and Aging Temperature and Humidity Standards.

Code of Federal Regulations that deal with Human Tissue and Bone Regulations