Control guards

In plants having a central plant-wide fire and emergency alarm center (fire house or guard control station), consideration should be given to sending the... 

Equipment manufacturers do not know how their products will be used at your facility. Therefore, you cannot rely on the manufacturer to have analyzed and designed guarding, controls, or safe procedures for the equipment. Another issue to take into consideration is if the equipment is produced in a foreign country. It may not meet U.S. requirements and laws. Therefore, you should also involve a safety professional in the purchasing decision, as well as in installation plans and startup [2]. 

Physical aspects of equipment - covering guarding, control systems, emergency controls, stability, lighting and warnings. 

The additives capable of controlling the octane requirement increase, have as far as they are concerned, a complex structure and are closely guarded industrial secrets. 

Primary alkanolamine solutions require a relatively high heat of regeneration. Also excessive temperatures or localized overheating in reboilers cause the MEA to decompose and form corrosive compounds. An inhibitor system, such as the Amine Guard system developed by Union Carbide, is an effective method of corrosion control (52). Inhibitors permit the use of higher (25—35%) concentration MEA solutions, thus allowing lower circulation rates and subsequendy lower regeneration duty. 

The reaction between urea and Aiming sulfuric acid is rapid and exothermic. It may proceed with violent boiling unless the reaction temperature is controlled. The reactants are strongly acidic. Therefore, operators should wear suitable protective gear to guard against chemical hazard. Special stainless steel, mbber lining, fiber-reinforced plastics, and polyvinyl chloride and carbon equipment are used. 

Preparation of Dispersion. The reduction process is a two-phase reaction between soluble reducing agent and insoluble dye particles, and therefore the rate of reduction is influenced by the particle size distribution of the dye dispersion. The smaller the particle size the greater the surface area and hence the more rapid the reduction process. However, if the particles are too small, migration will occur in continuous dyeing. It is therefore extremely important to control the size and range of particle size and this is a closely guarded piece of dyestuff manufacturers know-how. 

The many options available for lift trucks f l into two classes vehicle specialties, which include controls, transmissions, guards, etc. and accessories, which are devices that handle specific types of loads (Fig. 21-55). Included in this second category are high-lift masts, up to 7 m (24 ft) handhng attachments for circular products, such as drums and roll goods attachments such as carton clamps and the fork side-to-side shifting mechanism. 

Air pollutants may enter plant systems by either a primary or a secondary pathway. The primary pathway is analogous to human inhalation. Figure 8-2 shows the cross section of a leaf. Both of the outer surfaces are covered by a layer of epidermal cells, which help in moisture retention. Between the epidermal layers are the mesophyll cells—the spongy and palisade parenchyma. The leaf has a vascular bundle which carries water, minerals, and carbohydrates throughout the plant. Two important features shown in Fig. 8-2 are the openings in the epidermal layers called stomates, which are controlled by guard cells which can open and close, and air spaces in the interior of the leaf. 

Typical uses include illuminated notices, control panels, dome-ligbts, lighting diffusers, baths, face guards, nameplates, lenses and display models. 

CER Part 154, Subpart E-Vapor Control Systems. 1990. U.S. Department of Transportation, U.S. Coast Guard. 

Wilson, R. P., Jr. and Attalah, S. 1975. Design Criteria for Elame Control Devices for Cargo Venting Systems. US Coast Guard Report No. CG-D-157-75 (August 1975). Available from the NTIS, Springfield, VA 22161. 

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