Simplified preparation of TO14 and Title III air toxic standards using a Windows software package and dynamic dilution schemes

Conference · Sat Dec 31 04:00:00 EST 1994

OSTI ID:197512

Cardin, D B; Galoustian, E A ^[1]

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1. Entech Lab. Automation, Simi Valley, CA (United States)

The preparation of Air Toxic standards in the laboratory can be performed using several methods. These include injection of purge and trap standards, static dilution from pure compounds, and dynamic dilution from NIST traceable standards. A software package running under Windows has been developed that makes calculating dilution parameters for even complex mixtures fast and simple. Compound parameters such are name, molecular weight, boiling point, and density are saved in a data base for later access. Gas and liquid mixtures can be easily defined and saved as an inventory item, with preparation screens that calculate appropriate transfer volumes of each analyte. These mixtures can be utilized by both the static and dynamic dilution analysis windows to calculate proper flow rates and injection volumes for obtaining requested concentrations. A particularly useful approach for making accurate polar VOC standards will be presented.

• OSTI ID: 197512
• Report Number(s): CONF-9405167--
• Country of Publication: United States
• Language: English

Related Subjects

29 ENERGY PLANNING, POLICY, AND ECONOMY
54 ENVIRONMENTAL SCIENCES
AIR QUALITY
CLEAN AIR ACTS
COMPUTER CALCULATIONS
INFORMATION SYSTEMS
ORGANIC COMPOUNDS
STANDARDS
VOLATILE MATTER