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Ventilation workplaces

Where flammable solvents and adhesives are used, they must be stored, handled, and used in a manner preventing any possibility of ignition. Proper safety containers, storage areas, and well-ventilated workplaces are required. [Pg.420]

Environmental conditions include unguarded or faulty machinery, damaged or faulty tools and equipment, poorly illuminated or ventilated workplaces and untidy, dirty or overcrowded workplaces. [Pg.53]

No harmful effects on health have been observed that could have been caused by processing Terblend S under normal conditions of industrial practice in well-ventilated workplace. Under such conditions concentrations of styrene, n-butyl acrylate, and aciylonitrile are well below permitted concentrations. [Pg.345]

Protective measures iavolve prompt detection and adequate ventilation. Continuous monitoring is recommended to signal an evacuation alarm if the workplace concentration exceeds 70 mg/m (50 ppm) and a warning alert if it is present at 15—70 mg/m (10—50 ppm). [Pg.136]

Skin proteetion may neeessitate use of full proteetive suits. When eatalysts are dumped from reaetors at the end of a proeess they may prove to be extremely dusty as a result of reduetion in partiele size during the reaetion proeess. Again, depending upon the nature of the hazard, ventilation, personal proteetion, and use of temporary enelosures to prevent contamination of the general work area should be considered. Some catalysts are pyrophoric and some catalyst beds are inerted with the added possibility of fire, or release of inerting gas into the workplace which may cause asphyxiation. [Pg.119]

Aim to protect the health and safety of everyone m the workplace and ensure that adequate welfare facilities are provided. Covers e.g. general ventilation, temperature m indoor workplaces, lighting, cleanliness, space requirements, condition of floors and traffic routes, measures against falls/fallmg objects, washing facilities. [Pg.596]

In recent years, the use of solvent-borne adhesives has been seriously restricted. Solvents are, in general, volatile, flammable and toxic. Further, solvent may react with other airborne contaminants contributing to smog formation and workplace exposure. These arguments have limited the use of solvent-bome adhesives by different national and European regulations. Although solvent recovery systems and afterburners can be effectively attached to ventilation equipment, many factories are switching to the use of water-borne rubber adhesives, hot melts or 100% solids reactive systems, often at the expense of product performance or labour efficiency. [Pg.577]

This chapter describes the aerodynamic principles, models, and equations that govern the flow and the contaminant presence and transport in a designated volume of a work room. The purpose of local ventilation is to control the transport of contaminants at or near the source of emission, thus minimizing the contaminants in the workplace air. [Pg.6]

Richtlinie VDI 2262, Blatt 3, Mai 1994. Luftbeschaffenheit am Arheitsplatz, Minderung der F.xposition durch luftfremde Stoffe (Lufttechnische MaRnahmen (Workplace Air, Reduction of Exposure to Air Pollutants—Ventilation Technical Measures). [Pg.40]

The links between levels of exposure and inconvenience caused by ventilation noise are described in an investigation carried out on office workers.- Technical measurements and analyses of the ventilation noise at 155 typical office workplaces were in this study combined with assessments by the office workers of the level of disturbance that they experienced, the effect on working performance, fatigue, stress-related pain, and headaches. The average noise level was about 40 dB(A) at two of the workplaces, while it was about 35 dB(A) at two others. It emerged from rhe narrow-band analyses that the sound pressure levels of rhe infrasound were not in any event of an order that this type of sound frequencies (below 20 Hz) could contribute to any disturbance effects. Any steps taken to counter the sound frequencies of the ventilation noise under 50 Hz, i.e., the point of btersection between the threshold curve of auditory perception and the spectral level distribution curve of... [Pg.346]

The office workers involved in the study mentioned above rated the ventilation noise as somewhat disturbing to quite disturbing at the two workplaces where the level of exposure was about 40 dB(A). At the two workplaces... [Pg.347]

Certainly, some workplace operations involving highly toxic and/or valuable materials can be controlled more effectively by LVHV ventilation than by conventional local exhaust ventilation. These situations represent opportunities to improve worker protection, recover valuable materials, and to reduce replacement air requirements. Designers of local exhaust ventilation systems should be mindful of such opportunities and take advantage of LVHV control methods. [Pg.853]

A. Jansson. Local exhaust ventilation and aerosol behaviour in industrial workplace air.. rbete och Hdlsa, no. 43, 1990. [Pg.914]

Clean air and many air contaminants are under normal conditions invisible. It is, however, often desired to actually see the movement of air or the emission and transport of contaminants in order to ensure good air quality.. Methods aimed at the visualization of airflow, contaminants emission to the air, and their transportation out in the workplace and to the breathing zone of the worker are therefore important tools for designers of industrial ventilation systems. [Pg.1108]

Scale-model experiments have been used to study a variety of ventilation problems as air movement in a room, air movement around a building, energy flow in a building, contaminant distribution at an operator s workplace, and smoke movement in a building on fire. The theory is discussed at a general level in the references. [Pg.1176]

Experiments on the scale of 1 to 1 are often used to study the local ventilation around an operator s workplace. Tracer gas is used to simulate the contaminant transport, and a high concentration level of the model tracer gas makes it possible to work with a convenient level of concentration for the measurements. Figure 12.31 shows an enclosure with an emission source S and a laboratory. setup with a model source 5,. The dimensionless concentration c/cg is... [Pg.1185]

The two-stage electrostatic precipitators used in light-industry applications are compact devices which can be fitted into the ventilation system. These air cleaners are normally used to clean air from dusts, smokes, and fumes in industrial workplaces. The basic features of these devices are the separate sections for particle charging and collection. The charging section consists of thin metal wires installed between grounded metal plates. The distance... [Pg.1230]

Local exhaust ventilation serves to remove a contaminant near its source of emission into the atmosphere of a workplace. A system normally comprises a hood, ducting which conveys exhausted air and contaminants, a fan, equipment for contaminants collection/ removal and a stack for dispersion of decontaminated air. Hoods normally comprise an enclosure, a booth, a captor hood or a receptor hood. Those relying on other than complete enclosure should be as close a practicable to the source of pollution to achieve maximum efficiency. [Pg.274]


See other pages where Ventilation workplaces is mentioned: [Pg.124]    [Pg.58]    [Pg.124]    [Pg.58]    [Pg.497]    [Pg.425]    [Pg.326]    [Pg.389]    [Pg.572]    [Pg.576]    [Pg.2]    [Pg.397]    [Pg.823]    [Pg.959]    [Pg.1106]    [Pg.1117]    [Pg.1551]    [Pg.197]    [Pg.670]    [Pg.274]    [Pg.368]    [Pg.396]    [Pg.405]    [Pg.572]    [Pg.576]    [Pg.188]    [Pg.1328]    [Pg.281]   
See also in sourсe #XX -- [ Pg.567 ]




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