Provide proper ventilation

High-radiation areas must be secured carefully (i.e., level greater than 500 rad, radiation absorbed dose in 1 h at a distance of 1 m from the source) by providing proper ventilation and respiratory equipment, which monitors air contamination. It is also recommended that the radioactive material be properly stored with the required control along with posting signs such as ... 

Provide proper ventilation while using a cutting torch. Avoid breathing in gases or fumes from the cutting process. 

Air contaminants are emitted to the indoor air from a wide variety of activities and consumer products, some of which are summarized in Table 11. Most indoor activities produce some types of pollutants. When using volatile products or engaging in the activities Hsted, care should be exercised to minimize exposure through proper use of the product and by providing adequate ventilation. 

Corrosion occurs when the metallic iron in DRI is wetted with fresh or salt water and reacts with oxygen from air to form mst, Ee(OH)2- The corrosion reactions continue as long as water is present. Because water evaporates at approximately 100°C, corrosion reactions have a low temperature limit even though the reactions are exothermic. Small amounts of hydrogen may be generated when DRI reacts with water. However, this poses no safety problem as long as proper ventilation is provided. 

Proper ventilation and housekeeping minimizes secondary explosions. Dust coUectors of the dry type should be located outside the building, and provided with conduction bags and adequate explosion venting to a safe location. 

Operator exposure Charge liquids and solids materials by means of a to fumes or inerts. closed system (e.g., hard piping, hopper and rotary airlock, screw feeder, double-dump valve system, etc.) Provide local ventilation Use proper personnel protective equipment (PPE) ACGIH 1986 CCPS G-22 CCPS G-23 CCPS G-29... 

Advise workers abont the conseqnences and hazards of negligence during the nse of chemical snbstances in the workplace and provide proper training. Store corrosive substances in a cool, dry, and well ventilated area away from direct sunlight. 

Exposure to indoor contaminants in a workplace can be reduced by proper ventilation. Ventilation can be provided either by dilution ventilation or by a local exhaust system. In dilution ventilation, air is brought into the work area to dilute the contaminant sufficiently to minimize its concentration and subsequently reduce worker exposure. In a local exhaust system, the contaminant itself is removed from the source through hoods. Discuss why a local exhaust system is often preferred to a dilution ventilation system. 

That is why installation instructions for many composite decks prescribe a deck to be installed at least 12 in., and preferably 24 in. from the grade or rooftop, or provide a wider space between boards (such as 3/16" or even 1/4"). Some installation instructions say that failure to adhere to proper ventilation may void the warranty. 

However, in humid, moist areas, particularly with inadequate deck ventilation (to help keep the product relatively dry), for instance, when deck boards are installed too close to the ground, or when a deck forms a box isolated underneath, or when deck boards are wet and covered, moisture content in composite deckboards can exceed 20-25% and retain as such for a long time. With a lack of proper biocides, mildewcide, or other antimicrobial agents in the formulation of the composite material, mold can be rampant. That is why installation instructions for many composite decks direct to make a deck at least 12 in., and preferably 24 in. from the grade or rooftop, or provide a wider space between boards (such as 3/16" or even 1/4"). Some installation instruction say that failure to adhere to proper ventilation may void the warranty. 

Selecting the correct combination of antioxidants is specific to the elastomer polymer type as well as the compound formulation and the end use application. It is important to note that many of these materials may be considered toxic or hazardous in nature. Chemical specific Material Safety Data Sheets (MSDS) should be consulted for safe handling practices. Particular attention should be given to the proper selection and use of personal protective equipment, including proper ventilation and/or the use of respiratory protection. The MSDS will also provide information on how to handle spills and proper disposal procedures. Disposal methods should not be overlooked since these chemicals are all regulated, and hence waste disposal must conform to EPA and local disposal regulations. Refer to Rubber Oxidation. (Source Handbook of Polymer Science and Technology Volume 2 - Performance Properties of Plastics and Elastomers, N. P. Cheremisinoff - editor, Marcel Dekker Inc., New York, 1989). 

When ventilation is used as an engineering control method to achieve those limits, your company must comply with the installation and operation requirements of 29 CFR 1926.57. This rule covers each one of the above bulleted items, providing specific requirements for the construction, installation, inspection, and maintenance of proper ventilation systems appropriate personal protective equipment, including respirators and operational procedures. 

The environments for welding and cutting must be free of flammable gases. In confined spaces there is a need to provide adequate ventilation and breathing air. Welders must wear proper protective clothing. Welders and others involved... 

Proper handling considerations for the hydrocarbon solvents are available in the MSDS for the solvent of interest. Chemical worker goggles or safety glasses with side shields should be standard equipment. Proper ventilation should be provided so as to keep worker exposures below the recommended TLV levels. Respirators as recommended by the solvent manufacturer should be worn by any workers exposed to vapor levels above the TLV level listed in the MSDS. 

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