National Security

Laboratory Quality Assurance

Analytical laboratory networks have relied on Signature Science for more than 20 years to establish, operate, and maintain quality assurance (QA) systems for their sampling and analysis programs. Our comprehensive QA solutions include proficiency testing, laboratory auditing, ISO 17025 accreditation support, testing and evaluation, QA system development, and risk assessments.

Laboratory Network Solutions

Effective quality systems are built to address the needs and constraints of program leadership and stakeholders and are tailored to the laboratory network’s mission objectives. Signature Science has developed, implemented, and supported sustainment of ISO 17025-compliant quality systems for complex programs with missions supporting our national and homeland security.

Two photos. One of two scientists
 working in a mobile laboratory and another where a scientist is working under a fume hood.
Photo of Molly Isbell, PhD

Molly Isbell, PhD
Director, Quality Assurance & Data Science

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Proficiency Testing Services

Screen snapshot of the home page for Signature Science Proficiency Testing.

SigSci’s ISO/IEC 17043:2010 (ISO 17043) accredited proficiency test (PT) programs are tailored to client operations and objectives. The PTs provide performance data for specific tests, accounting for test method sensitivity and specificity, as well as variables such as sample matrix and preparation method.

SigSci’s PT accreditation covers environmental matrices on various collection media, and in samples of powders, liquids, soils, sludges, swabs/swipes and vegetation covering Chemical Warfare Agent-related chemicals, Toxic Industrial Chemicals, Toxic Industrial Materials, Explosives, Biological Pathogens, and Select Toxins.

Photo of Jenni Elenniss, MS, PMP, CQA

Jenni Elenniss, MS, PMP, CQA
Quality Assurance Chemist

For more information about Proficiency Testing Services: