hazardous area Articles

  • Classifying Hazardous Areas

    The IEC is composed of approximately 40 countries including the United States. The purpose of the IEC is to establish standards for a wide variety of electrical products with the intent of encouraging international trade. The IEC has assigned a technical committee, TC 31, to develop recommendations covering equipment, testing procedures and classification standards for areas where the potential ...

  • Human Error Threatens Safety in Hazardous Areas

    The top 5 problems identified in hazardous areas are Poor or no maintenance on flameproof (Ex d) enclosures. Due to corrosion—especially when equipment is installed outdoors—the Ex d protection is gone 2-3 years after installation. Incorrectly installed Ex d cable glands. Even if the combination of cable and gland is chosen correctly, the instructions on how to ...


    By Mettler - Toledo Int. Inc

  • Flammable Hazards

    Flammable Hazards The difference between a gas and a vapor is that vapors arise from liquids, whereas gases are normally in a gaseous state. Flammable vapors present additional sampling concerns (for example, we must prevent vapors from returning to the liquid state during sampling). The 3 Elements of Fire Three elements must be present for a flammable ...

  • Area Monitoring: Diffusion Sampling

    Indoor and outdoor gas hazards that exist in open areas are usually monitored using diffusion-type sensors. A diffusion sensor has no active sample-drawing system; diffusion sensors rely on the ambient air movement and pressure to deliver the sample to the sensing element. Diffusion-type sensors are a reliable and cost-effective way to monitor open area gas hazards. When installing diffusion ...

  • Comparison of hazard area and casualty predictions of a small-scale chemical attack using various toxic load toxicity models

    It has been observed that the toxic load model can better account for toxic effects from chemical exposures than Haber’s law. However, the toxic load model has been experimentally validated only for steady exposures. We compare four proposed extensions of the toxic load model to the case of time-varying exposures. We conclude that the choice of the toxic load model can be important in ...


    By Inderscience Publishers

  • INTRINSICALLY SAFE WIRELESS MONITORING AND CONTROL NODES ARE CERTIFIED WORLDWIDE FOR USE IN HAZARDOUS AREAS

    INTRINSICALLY SAFE WIRELESS MONITORING AND CONTROL NODES ARE CERTIFIED WORLDWIDE FOR USE IN HAZARDOUS AREAS DX99 FlexPower nodes from Banner Engineering are available in metal housing for gas and dust atmospheres A series of intrinsically safe wireless communication nodes certified for worldwide use in explosive gas or dust atmospheres is available from Banner Engineering. The nodes interface ...


    By Banner Engineering Corp.

  • Potential use of transport and dispersion model output to supplement Allied Tactical Publication–45 hazard area prediction templates

    Allied Tactical Publication–45(C) is the current US and NATO command doctrine for Nuclear, Chemical and Biological (NBC) events. ATP–45 is designed to warn military populations of NBC hazard by providing area–warning templates based on NBC messages. ATP–45 is designed to produce a single 2–hour hazard area template that accounts for wind speed fluctuations, but it ...


    By Inderscience Publishers

  • Flood hazards in the headwaters area: lessons learned from a survey of households in the upper Myjava basin, Slovakia

    The aims of this paper are to present knowledge about the threat of flooding in the upper basins of the Myjava River, obtained using a questionnaire, and to identify the potential lessons for flood risk management. The questionnaire was designed to obtain information about households' experience with flooding, including the type of floods experienced, the locations of flooding, the ...


    By IWA Publishing

  • The Area Source Mact/Gact Challenge

    Dozens of new federal rules, regulating over 180 Hazardous Air Pollutants for relatively small sources, present a new and unique challenge for the air pollution profession. Over the past two decades, a large number of federal regulations have been adopted to control Hazardous Air Pollutants (HAPs) originating from a wide range of source categories from the corner dry cleaner to petroleum ...

  • How to Assess Fall Hazards

    Fall hazards are an ongoing concern in most workplaces and include both falls from heights as well as falls from the same level. Slips, trip and falls from both categories consistently rank among the top causes of both disabling injuries and deaths in all types of workplaces, from construction sites, to manufacturing operations to warehouses to offices. In fact, the only other category of ...


    By SafetySmart

  • Flood hazard maps

    Flood hazard maps have to be developed for areas, which have been identified in the preliminary flood risk assessment. For certain flood frequencies the extent and the water depth, the flow velocity or the relevant water flow have to be mapped. Flood frequencies consider (2007/60/EC): floods with a low probability, or extreme event ...


    By IWA Publishing

  • Safety and hazards in CCS projects

    Carbon capture and storage is now on the technological tipping point – it has reached critical mass with one large-scale, fully integrated power project now almost operational at the SaskPower Boundary Dam project in Canada, using enhanced oil recovery. In the UK, following the announcements of progress at two projects, Peterhead and White Rose, the government’s competition process ...


    By Energy Institute (EI)

  • Frostbite And Hypothermia Hazards

    Hypothermia and frostbite can be two of the serious consequences of working outdoors in winter weather. Hypothermia is a dangerous lowering of the body’s temperature by exposure to cold or wet conditions. Actually, the air temperature doesn’t have to be particularly low to cause hypothermia – just getting wet and chilled can do the same thing. Hypothermia can be fatal. ...


    By SafetySmart

  • Nanotechnology – what is it? are there hazards?

    This is the first of a series articles on the emerging field of Nanotechnology. What is it? In short – small! Very small! Very, very small! Nanotechnology comes from the prefix Nano which, in English, means 1/billionth, just as micro means 1/millionth. So Nanotechnology involves 2 things: 1) extremely small man-made materials – some even as small as 1 atom thick, ...


    By Atlantic Environmental, Inc.

  • Toxic and Hazardous Materials in Electronics

    Untitled Document Introduction In October 2000 Environment Canada released a report called Information Technology (IT) and Telecommunications (Telecom) ...

  • Hazardous Waste Disposal

    Untitled Document Overview We're all aware of the importance of following safety precautions when we work with hazardous chemicals. ...


  • Management of Hazardous Wastes

    ' Management of hazardous waste is a growing concern in many countries. The long-term impacts and costs of improper disposal can be very high and the emphasis must be on prevention. A comprehensive management system should include (i) policies, institutions and effective regulations and (ii) adequate and acceptable disposal facilities (either public or private). This note outlines the key ...


    By The World Bank

  • Urbanisation and environmental degradation in Dhaka Metropolitan Area of Bangladesh

    Using available data on relevant issues and onsite field visits, this paper documented the environmental problems associated with the unprecedented urbanisation in Dhaka Metropolitan Area of Bangladesh. Analyses revealed that a rapid spatial expansion of the city has been taking place alongside the remarkable rise in urban population, simultaneously putting immense pressure on natural ...


    By Inderscience Publishers

  • Health and environmental training in mercury-contaminated areas

    In 50 countries small-scale miners recover gold by amalgamation process, using excessive quantities of mercury. Fifteen million artisanal gold miners apply this process and 100 million people might depend upon these activities. Small-scale mining adds extensively to the worldwide release of mercury into the environment. The University of Munich assessed the health of people living in mining ...


    By Inderscience Publishers

  • Hazardous chemicals and proper storage solutions

    Many acceptable categorical storage schemes have been proposed and used by laboratories in academic, industrial, government and medical institutions. The common features uniting all these plans is the separation of incompatible materials. The differences in these various storage schemes arises in the number of groups that should be established for segregation purposes. The ten most commonly cited ...


    By US Chemical Storage

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