Portable gas monitors : some problems of zero drift, response time and selectivity solved with "gas-modifier pumps"
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Tag | 1 | 2 | Value |
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LDR | 00000nab a2200000 i 4500 | ||
001 | MAP20071017757 | ||
003 | MAP | ||
005 | 20080418115156.0 | ||
007 | hzruuu---uuuu | ||
008 | 940307s1986 gbr|||| | |00010|eng d | ||
035 | $a6800003081 | ||
040 | $aMAP$bspa | ||
084 | $a872 | ||
100 | 1 | $0MAPA20080020347$aBergman, I. | |
245 | 1 | 0 | $aPortable gas monitors$b: some problems of zero drift, response time and selectivity solved with "gas-modifier pumps"$cI. Bergman |
520 | $aThe detection and monitoring of toxic gases in industrial atmospheres with the aid of direct-reading instruments presents a number of problems, these may include: zero drift; slow response; lack of selectivity; and insensitivity to some gases. These problems can be ameliorated or overcome by sequentially exposing the sensor to a series of samples, some or all of which have been pumped though gas midifier layers to remove or modify relevant constituents of the gas stream. The requirements of such a system and suitable designs of pumps for application to fixed of portable monitors or alarms are discussed | ||
650 | 1 | 1 | $0MAPA20080585679$aHigiene industrial |
650 | 1 | 1 | $0MAPA20080605278$aContaminantes químicos |
650 | 1 | 1 | $0MAPA20080616441$aContaminación atmosférica |
650 | 1 | 1 | $0MAPA20080591113$aGases contaminantes |
650 | 1 | 1 | $0MAPA20080565817$aGases tóxicos |
650 | 1 | 1 | $0MAPA20080621186$aControl de la contaminación |
650 | 1 | 1 | $0MAPA20080551797$aMuestreos |
650 | 1 | 1 | $0MAPA20080590338$aDetectores de gases |
740 | 4 | $aThe Annals of occupational hygiene | |
773 | 0 | $tThe Annals of occupational hygiene$dOxford [etc.]$gnº 4, 1986 ; p. 469-479 |