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National Performance Evaluation Program -
Standard Reference Photometer Program (SRP)
Certification programs provide some independent testing of products and or instrumentation and are used to provide a sense of quality and comparability. The Standard Reference Photometer Program which is used to certify State, Local, and Tribal monitoring organizations' ozone primaray and transfer standards will be implemented for NCore Level 2 and 3 sites through the Office of Radiation and Indoor Air (ORIA).
Draft: Transfer Standards for Calibration of Air Monitoring Analyzers for Ozone (PDF) - 5/31/09 (67pp, 820 KB)
Schedule of Standard Reference Photometer Recertifications (revised) (PDF) - 3/10/08 (1pg, 50 KB)