Main Title |
Development of technical specifications for standard gas-diluent mixtures for use in measurement of mobile source emissions / |
Author |
Reckner., Louis R.
|
Other Authors |
|
CORP Author |
Scott Research Labs., Inc., Plumsteadville, Pa.;National Environmental Research Center, Research Triangle Park, N.C. Quality Assurance and Environmental Monitoring Lab. |
Publisher |
U.S. Environmental Protection Agency, Office of Research and Development, |
Year Published |
1974 |
Report Number |
EPA-650/4-74-020; EPA-68-02-0652; EPA-ROAP-26ADZ |
Stock Number |
PB245050 |
OCLC Number |
55704628 |
Subjects |
Automobiles--Motors--Exhaust gas ;
Propane ;
Nitrogen ;
Carbon monoxide
|
Additional Subjects |
Gas cylinders ;
Standards ;
Carbon monoxide ;
Nitrogen ;
Propane ;
Storage ;
Stability ;
Valves ;
Steels ;
Pressure ;
Tests ;
Diluents ;
Air pollution ;
Air pollution sampling
|
Internet Access |
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
EJBD |
EPA 650-4-74-020 |
|
Headquarters Library/Washington,DC |
10/02/2014 |
ELBD ARCHIVE |
EPA 650-4-74-020 |
Received from HQ |
AWBERC Library/Cincinnati,OH |
10/04/2023 |
NTIS |
PB-245 050 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
[68] p. : ill. ; 28 cm. |
Abstract |
The stability of gas mixtures of carbon monoxide in nitrogen and propane in air in high-pressure cylinders was investigated in 240 test cylinders over a six month period. The effect of several variables related to the preparation of the mixtures by the suppliers, the storage of the cylinders and their use by laboratories engaged in emission measurements was studied. The variables included: (1) Cylinder wall material; (2) Cylinder valve type; (3) Cylinder preconditioning procedure; (4) Concentration of carbon monoxide and propane; (5) Purity of diluent nitrogen and air; (6) Mixing procedure after blending; (7) Temperature at which cylinders are stored; (8) Cylinder pressure; (9) Type of pressure-reducing regulator used. The concentration data obtained by periodic analysis of the 240 cylinders over the six month period were subjected to statistical analysis by multiple stepwise regression. The effects of the individual variables are discussed, and recommended practices for assuring stable mixtures of carbon monoxide in nitrogen and propane in air are presented. |
Notes |
EPA Project Officer: John H. Margeson. Prepared for the U.S. Environmental Protection Agency "June 1974." "EPA-650/4-74-020." Quality Assurance and Environmental Monitoring Laboratory, National Environmental Research Center. Also distributed by National Technical Information Service (NTIS) as PB245050. |
Place Published |
Washington, DC |
Corporate Au Added Ent |
United States. Environmental Protection Agency. Office of Research and Development.; National Environmental Research Center.; Scott Research Laboratories, Inc. |
Title Ser Add Ent |
Environmental monitoring series. |
PUB Date Free Form |
1974 |
Series Title Traced |
Environmental monitoring series |
Series Title Untraced |
Environmental monitoring series |
NTIS Prices |
PC A04/MF A01 |
BIB Level |
m |
Cataloging Source |
OCLC/T |
OCLC Time Stamp |
20130514110238 |
Language |
eng |
Origin |
OCLC |
Type |
MERGE |
OCLC Rec Leader |
01702cam 2200397Ka 45020 |