Record Display for the EPA National Library Catalog


Main Title Evaluation of stationary source particulate measurement methods : Gas temperature control during method 5 sampling : vol. III /
Author Peters, Edward T.
Other Authors
Author Title of a Work
Adams, Jeffery W.
CORP Author Little (Authur D.), Inc., Cambridge, MA.;Environmental Sciences Research Lab., Research Triangle Park, NC.
Publisher U.S. Environmental Protection Agency,
Year Published 1979
Report Number EPA-600/2-79-115; EPA-68-02-0632
Stock Number PB-300 336
OCLC Number 06646033
Additional Subjects Temperature measurement ; Air pollution ; Measurement ; Sampling ; Temperature ; Gases ; Performance evaluation ; Particles ; EPA method 5 ; Air pollution sampling ; Stationary sources
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
EHAM  EPA-600/2-79-115 Region 1 Library/Boston,MA 05/25/2016
EJBD ARCHIVE EPA 600-2-79-115 Headquarters Library/Washington,DC 02/09/2011
EJBD  EPA-600/2-79-115 Headquarters Library/Washington,DC 04/14/2014
EKBD  EPA-600/2-79-115 Research Triangle Park Library/RTP, NC 04/17/2019
ESAD  EPA 600-2-79-115 Region 10 Library/Seattle,WA 03/23/2010
NTIS  PB-300 336 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation viii, 23 pages : illustrations ; 28 cm
A study was conducted to measure changes in gas temperature along the length of a Method 5 sampling train due to variations in stack gas temperature, sampling rate, filter box temperature and method for controlling the probe heating element. For each run condition, temperatures were measured in the stack, at ambient and at four internal and external positions along the sampling train at one minute intervals. Measurements were continued until the system was observed to reach a state of thermal equilibrium. The results from these experiments, presented herein, demonstrate that gas temperatures cannot be predicted or controlled on the basis of externally measured temperatures. The use of an internal thermocouple, having its reference junction at the back of the probe, to proportionally control the probe heater element is shown to provide a predictable gas temperature and a flat thermal profile along the system. This procedure for controlling gas temperature is recommended as a modification to Method 5.
June 1979.