This study found that most workers gauging tanks (15 of 17 88.2) had benzene exposures exceeding the NIOSH-recommended exposure limit (REL) of 0. Contact us today to learn how we can improve your organisation’s industrial hygiene program. Direct-reading instruments were also used to characterize peak and short-term exposures to hydrocarbon gases and vapors. We offer a wide range of industrial hygiene instruments, from sound level meters and noise dosimeters to heat stress monitors and quantitative fit testing systems, all designed to assist you in ensuring the health and safety of your workers. In addition, CFD simulations were carried out to study the effect of changing the airflow rate to the chamber and the position of air inlet to extend the range of parameters. personal breathing zone (PBZ) and area air sampling. Either of the methods is acceptable by OSHA and.
CFD simulations were also carried out for the purpose of flow visualisation as well as the calculation of air velocity, temperature and age of air distribution. Personal sampling is where an individual collects air samples from the space surrounding his/her breathing zone. Measurements of the age of air distribution, the air exchange index and the ventilation effectiveness were carried out at different points in the chamber for different room thermal loads. An environmental chamber with displacement ventilation system has been used to carry out the measurements with the presence of a heated mannequin and other heat sources. This paper is concerned with the difference in the air quality that is perceived by the occupants (breathing zone) and that existing in the occupied zone as a whole.
0 kommentar(er)
