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Environmental Technologies Portal

Programs and Projects
Reference Materials and Standards for Fossil Fuels, Electric Utility Emissions, and Coal Combustion By-Products

National Institute of Standards and Technology (NIST) fossil fuel Standard Reference Materials (SRMs) continue to be in high demand by the … more

Activated Carbon and FGD Gypsum Standard Reference Materials

New Standard Reference Materials (SRMs) consisting of activated carbon sorbent materials and flue gas desulfurization (FGD) gypsum are being … more

Establishing Measurement Traceability for Gaseous Mercury Emissions Monitoring

As a result of the environmental impact of mercury and the neurotoxic risk associated with trophic transfer of methyl mercury to humans, the … more

Field Parameter Metrology

Consider the consequences if nearby electronics could interfere with a jet's instruments or cause an automobile to stall. The Field Parameter … more

Fundamental Guided Wave Metrology

Radio-frequency (RF) waves and microwaves are involved with almost every facet of everyday life. Radio stations, television, wireless devices, … more

Instruments
Standard Reference Photometer

The Standard Reference Photometer (SRP) Program began in the early 1980s as collaboration between NIST and the U.S. Environmental Protection … more

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