SOPs for Laboratory Procedures

Welcome to your resource for exploring approved Standard Operating Procedures (SOP) for Laboratory Procedures.

Laboratory Analysis Branch

CARB’s Laboratory Analysis Branch provides analytical support for various regulatory programs, including CARB’s PQAO. The branch conducts measurements and analyzes data for air quality and consumer products using state-of-the-art laboratory equipment. All analyses follow SOPs to ensure accurate and reliable results. These SOPs provide detailed instructions that implement the guidance of the Laboratory Quality Control Manual, with each SOP corresponding to a method used by CARB to analyze ambient air samples or consumer products.

For a list of all SOPs related to the LAB, please visit the Laboratory Standard Operating Procedures webpage.

Standards Laboratory

In support of California’s ambient air monitoring program, CARB operates and maintains a Standards Laboratory to provide authoritative standards for determining whether data meets established data quality objectives. The Standards Laboratory provides metrological certification and verification services for equipment used to perform required quality assurance activities, such as calibrations, checks, and audits. The equipment evaluated includes ozone transfer standards, flow‑measuring devices (such as orifices, mass flow meters, and mass flow controllers), and meteorological sensors (including wind speed, temperature, pressure, and relative humidity).

For a list of all SOPs related to the Standards Laboratory, please visit the Standards Laboratory webpage.