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Rauchkomponenten-Erträge aus Brandversuchen im Prüfmaßstab: 1. Nfpa 269 / ASTM E 1678 von-
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Standort: Fairfield, Ohio, USA
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eBay-Artikelnr.:396899239836
Artikelmerkmale
- Artikelzustand
- ISBN-13
- 9781496019059
- Type
- NA
- Publication Name
- NA
- ISBN
- 9781496019059
Über dieses Produkt
Product Identifiers
Publisher
CreateSpace
ISBN-10
1496019059
ISBN-13
9781496019059
eBay Product ID (ePID)
202635611
Product Key Features
Book Title
Smoke Component Yields from Bench-Scale Fire Tests : 1. Nfpa 269 / ASTM E 1678
Number of Pages
68 Pages
Language
English
Publication Year
2014
Topic
Fire Science
Genre
Technology & Engineering
Format
Trade Paperback
Dimensions
Item Height
0.2 in
Item Weight
8.2 Oz
Item Length
11 in
Item Width
8.5 in
Additional Product Features
Intended Audience
Trade
Synopsis
A standard procedure is needed for obtaining smoke toxic potency datafor use in fire hazard and risk analyses. Room fire testing of finished products isimpractical, directing attention to the use of apparatus that can obtain the needed dataquickly and at affordable cost. This report examines the first of a series bench-scale firetests to produce data on the yields of toxic products in both pre-flashover andpost-flashover flaming fires. The apparatus is the radiant furnace in NFPA 269 and ASTME 1678. Test specimens were cut from finished products that were also burned inroom-scale tests: a sofa made of upholstered cushions on a steel frame, particleboardbookcases with a laminated finish, and household electric power cable. Initially, thestandard test procedure was followed, with a variation to reduce the contribution to theeffluent of post- flaming pyrolysis. Subsequent variations in the procedure includedcutting the test specimen into small pieces and performing the tests at a reduced oxygenvolume fraction of 0.17. The yields of CO2 CO, HCl, and HCN were determined. The yieldsof other toxicants (NO, NO2, formaldehyde, and acrolein) were below the detection limits,but volume fractions at the detection limits were shown to be of limited toxicologicalimportance relative to the detected toxicants. In general, dicing the test specimen andperforming the tests at the reduced oxygen volume fraction had little effect on the toxicgas yields, within the experimental uncertainties. The exceptions were an increase in theCO yield for diced specimens at reduced oxygen, a decrease in the HCN yield from theintact sofa and cable specimens at reduced oxygen, and an increase in the HCN yield fromdicing the cable specimens. In none of the procedure variations did the CO yield approachthe value of 0.2 found in real-scale post flashover fire tests.
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