AirComplianceEngineering
  • Home
  • About Us
  • Services
    • FTIR Support
    • Indoor Air / Mold
  • Request Consultation
  • News/Articles
  • Resources

news & articles

View my profile on LinkedIn

NO2 Cylinder Guidance for State-Local Agencies and Gas Producers

11/22/2017

0 Comments

 
EPA article: 
https://www.epa.gov/air-research/no2-cylinder-guidance-state-local-agencies-and-gas-producers

EPA has approved the use of direct-reading analyzers to measure nitrogen dioxide (NO2) in ambient air.  In the past, this pollutant has been measured by chemiluminescence analyzers as the difference between measurements of total nitrogen oxides (NOx) and nitric oxides (NO).  The new NO2 analyzers need to use National Institute of Standards and Technology (NIST)-traceable NO2 calibration gases (i.e., EPA Protocol Gases) to make accurate direct-reading measurements.  Although NIST is not currently selling NO2 reference standards, it does recognize as equivalent the NO2 reference standards from the Von Swinden Laboratory (VSL) in the Netherlands.  VSL uses specially prepared aluminum cylinders in which NO2 gas mixtures are stable. 
​
The two EPA memoranda alert specialty gas producers, EPA regional offices, and state/local agencies that nitrogen dioxide (NO2) EPA Protocol Gases can be assayed and certified using VSL NO2 reference standards.  It also notes that the EPA's Office of Air Quality Planning and Standards (OAQPS) will be assessing the long-term stability of these NO2 EPA Protocol Gases.

  • ​NO2 Cylinder Guidance for State-Local Agencies (PDF)(2 pp, 383 K)
  • NO2 Cylinder Guidance for Gas Producers (PDF)(2 pp, 388 K)

0 Comments



Leave a Reply.

    • EPA News
    • EPA Air News
    • A&WMA Newswire
    • Source Evaluation Society News

    Archives

    November 2017
    October 2017
    April 2017
    March 2017
    February 2017
    January 2017

    Categories

    All
    Air Emissions
    Air Permit
    Air Quality
    Air Toxics
    CHP
    Coal
    Combined Heating And Power
    Combustion Turbine
    Dominion Power
    Duke Energy
    Electric Power
    Emissions
    Energy Efficiency
    Environmental Compliance
    Environmental Protection
    Formaldehyde
    Greenhouse Gas
    Landfill Gas
    Methane
    Nitric Oxide
    Nitrogen Dioxide
    NOx
    Oxides Of Nitrogen
    Ozone
    Ozone Attainment
    Ozone Nonattainment
    Particulate
    Reciprocating Engine
    Renewable
    SO2
    Sulfur Dioxide
    Utilities
    Wood Products

    RSS Feed

Proudly powered by Weebly
  • Home
  • About Us
  • Services
    • FTIR Support
    • Indoor Air / Mold
  • Request Consultation
  • News/Articles
  • Resources