| Document ID (ISN) | 66866 |
| CIS number |
96-804 |
| ISSN - Serial title |
0007-9952 - Cahiers de notes documentaires - Hygiène et sécurité du travail |
| Year |
1995 |
| Convention or series no. |
|
| Author(s) |
Bémer D., Dessagne J.M., Aubertin G. |
| Title |
Determination of the emission rate of a gas source - Development of a helium tracer method |
| Original title |
Traçage à l'hélium - Mise au point d'une méthode de mesure du débit d'émission d'une source gazeuse [in French] |
| Bibliographic information |
4th Quarter 1995, No.161, Note No.2007-161-95, p.509-518. Illus. 11 ref. |
| Abstract |
The tracer gas method for determining the emission rate of a pollutant gas source consists of using a tracer gas along with the pollutant emitted by a constant flow source in order to establish the mass flow rate. The study demonstrates the validity of the tracer gas method for determining the emission rate of a pollutant source comprising a solvent bath placed in the open air. Limitations were noted, however, when the source was placed in very still air (air velocity above the bath <10cm/s approx.). But this situation is by no means the most common in industry, where average air velocity is generally of the order of 30cm/s or more. It is planned to extend this method to particulate pollutant sources, which are very frequent in industry (wood dusts, oil mists, welding fumes, etc.). |
| Descriptors (primary) |
tracer gases; helium; toxic atmosphere detection; flowrate measurement; chemical products |
| Descriptors (secondary) |
wood dust; oil mist; welding fumes; description of technique; evaluation of technique; evaluation of control measures; pollution control; ventilation design |
| Document type |
D - Periodical articles |
| Country / State or Province | France |
| Subject(s) |
Toxic and dangerous substances
|
| Broad subject area(s) |
Chemical safety
|
| Browse category(ies) |
Ventilation
Inorganic substances
|
