Quality Assurance
Reliable results begin with disciplined laboratory practice.
Great Midwest Laboratories maintains documented procedures for sample receipt, identification, preparation, analysis, review, and reporting. Our approach is designed to support consistency and traceability across routine and project-specific work.
Quality is not a single department or final review step. It is part of the way laboratory work is planned, performed, documented, and communicated.
Accreditation & Standards
Laboratory operations are conducted in accordance with ISO/IEC 17025 general requirements for the competence of testing and calibration laboratories.
Certified by the Missouri Department of Health and Senior Services for applicable analytical testing categories.
Environmental testing methods performed in accordance with National Environmental Laboratory Accreditation Program standards.
Our Quality Practices
- Sample receipt and chain-of-custody review
- Method and project documentation
- Instrument maintenance and performance checks
- Control materials and reference standards
- Proficiency testing participation
- Peer review of technical results
- Data review before reporting
- Clear reporting of qualifications or limitations
- Secure record retention practices
- Annual management review and corrective action
For project-specific quality documentation, copies of certifications, or questions concerning data reporting, please contact the laboratory before submitting samples.