This focus area is oriented towards maintaining expertise in emission measurement and related analytical methods. NCASI expertise in this focus area is leveraged to evaluate, improve and modify EPA and other reference methods under both these categories, where applicable. One area of specific focus is on method performance on pulp and paper (PnP) or wood products (WP) sources.
Measurement & Analytical Methods
NCASI has decades of expertise evaluating and implementing total PM measurement methods like Method 5, 5b, and 17. NCASI also leverages this expertise to help Member companies plan and execute emission testing. NCASI also quality assures emission test reports as part of Member support and helps conduct more detailed characterizations…
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NCASI develops, evaluates and validates sampling and analytical methods for HAPs in air emissions, condensates and wastewater. Several of these methods are approved under the Subpart S (pulp and paper) and Subpart DDDD (PCWP) MACT rules for compliance demonstration purposes. The NCASI method to measure low levels of aldehydes and…
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NCASI has extensive experience with field implementation of Method 25A, used to measure total gaseous organic carbon emissions from a variety of forest products industry sources. NCASI has also evaluated a modified Method 25A sampling system for use on sources with non-hydrocarbon organic compounds and high levels of moisture.
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Recent NCASI technical studies focus on several topics related to PM2.5 measurement; in-field implementation of Method 201A for filterable PM2.5, biases in Method 202 used to measure CPM and development of a method to measure filterable PM2.5 from sources with entrained water droplets. NCASI work on Method 202 has extended…
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Recent NCASI technical activity in this area seeks to evaluate the use of OTM-026, in conjunction with modified Method 25A to develop better estimates of speciated VOC emissions from wood products sources. NCASI also works with members to leverage existing HAP/VOC emissions data to develop estimated speciated VOC profiles for…
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Early NCASI work on sulfuric acid measurement resulted in the development of the controlled condensation method, NCASI Method 8A (CTM-013), for use on recovery furnaces. EPA Method 8, the promulgated reference method for sulfuric acid, was later modified (as CTM-013a and CTM-013b) with a front-half filter for use on other…
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This NCASI Excel-based tool was developed to audit test reports that utilize US EPA Method 5 to determine particulate matter emissions from a stationary source.
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