QUAD-LAB

QUAD-LAB is a French analytical chemistry laboratory specializing exclusively in the analysis of air and gases (laboratoire d'analyse de l'air et des gaz), with more than thirty years of accumulated expertise in detecting and quantifying volatile organic compounds (VOCs) and chemical pollutants in gaseous matrices. Founded in 1993 and based in Lisses, in the Essonne department of Île-de-France, the laboratory has grown into a recognized independent testing partner for industrial operators, environmental consultants, public-sector bodies, and specialized inspection firms across France. Its single-minded focus on gaseous analysis has allowed it to build deep methodological competence across both ambient air quality monitoring and industrial gas characterization, making it a specialist resource whenever precise, regulatory-grade measurement of air and gas samples is required.

The laboratory's air analysis offering covers three principal domains: industrial atmospheric emissions, indoor air quality, and occupational exposure assessment. For industrial clients, QUAD-LAB measures stack and fugitive emissions at industrial sites to support regulatory compliance with atmospheric discharge limits imposed by French and European environmental law. For indoor environments — including offices, schools, daycare centers, and community buildings — the laboratory quantifies VOC and chemical pollutant concentrations to meet the obligations of France's mandatory indoor air quality monitoring program. In the field of occupational hygiene, QUAD-LAB assesses worker exposure to chemical agents at the breathing zone, helping employers and occupational health services satisfy the requirements of workplace chemical risk regulations. Ambient air monitoring around industrial installations or in residential zones affected by industrial activity rounds out the air analysis portfolio.

Gas analysis constitutes the second core pillar of QUAD-LAB's service offering. The laboratory supports biogas and biomethane operators throughout the project lifecycle, from plant commissioning and composition control to regulatory compliance monitoring and equipment specification. For process industry clients, it characterizes process gases to ensure correct composition and detects trace-level contaminants that could affect product quality or equipment integrity. Industrial and specialty gas producers and distributors rely on QUAD-LAB for purity verification of compressed gas cylinders, including medical-grade gases and high-purity industrial gases. The laboratory also analyzes food-grade gas matrices such as modified atmosphere packaging headspace to verify gas blend composition and detect off-odor compounds, and it handles material emission testing where gaseous compounds migrate from solid matrices into enclosed headspaces.

The range of analytes measurable by QUAD-LAB is extensive and includes volatile organic compounds (VOCs) as a broad class; permanent gases such as oxygen, nitrogen, carbon dioxide, methane, hydrogen, and carbon monoxide; total chlorinated, fluorinated, and sulfur-containing compounds; mercaptans; siloxanes; hydrocarbons including polycyclic aromatic hydrocarbons (PAHs); aldehydes; organic acids; ammonia; cyanides; amines; mercury; and oil mists. This analyte breadth allows a single laboratory relationship to address the full diversity of chemical pollutants encountered across environmental compliance, industrial hygiene, and process quality programs.

Analytically, QUAD-LAB employs a suite of chromatographic and spectroscopic techniques calibrated for trace-level detection in complex gaseous matrices. Core instruments include thermal desorption coupled to gas chromatography with flame ionization detection (TD-GC-FID) and thermal desorption coupled to gas chromatography–mass spectrometry (TD-GC-MS), which together enable both quantitative VOC profiling and confirmatory compound identification. Gas chromatography and infrared (IR) spectroscopy complete the analytical toolkit for permanent gas characterization and specific compound classes. Sampling logistics are integral to the service model: QUAD-LAB provides passive and active sampling equipment — including pumps, aluminized bags, and Sulfinert-passivated cylinders — with availability guaranteed within 24 hours, ensuring that urgent site investigations or time-sensitive regulatory campaigns are not delayed waiting for equipment.

Quality assurance is underpinned by COFRAC accreditation under ISO/IEC 17025:2017 (Reference No. 1-1578), the internationally recognized standard for testing and calibration laboratory competence. COFRAC (Comité Français d'Accréditation) is France's national accreditation body and a full signatory member of the ILAC and EA mutual recognition arrangements, meaning QUAD-LAB results carry authority with regulatory bodies and clients across Europe and internationally. Accreditation confirms that the laboratory maintains documented and validated analytical procedures, quantified measurement uncertainties, active proficiency testing participation, and continuously assessed staff competency — all subject to independent periodic audits.

The physical infrastructure at QUAD-LAB comprises an 800 m² dedicated laboratory facility equipped with next-generation analytical instrumentation purpose-designed for the handling and measurement of volatile and reactive gaseous samples. The facility's scale supports simultaneous processing of multiple sample campaigns and client projects. In-house method development capabilities allow the laboratory to design bespoke analytical protocols when standard methods do not cover unusual matrices, regulatory edge cases, or R&D-stage challenges. Professional affiliations include France Chimie (the French chemical industry federation), ATEE Biogas Club (the French energy and environment association's biogas network), FIMEA, and La French Fab, reflecting sustained engagement with the industrial and regulatory communities the laboratory serves.

A key differentiator for QUAD-LAB is its end-to-end service model, combining sampling equipment provision and field logistics with laboratory analysis under one roof. This integrated approach eliminates chain-of-custody gaps and sample degradation risks that arise when sampling and analysis are sourced from different providers. With more than three decades of specialization in VOC and chemical pollutant analysis, the laboratory has assembled both an extensive validated method library and the contextual expertise to interpret results against regulatory thresholds and guide corrective action. Emergency turnaround results available within 24 hours further strengthen its value proposition for incident response, pre-regulatory deadlines, and time-critical compliance campaigns.