LEV Central

The Knowledge Base for LEV

Flour dust

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Flour dust and enzymes containing additives such as amylase are the second most common cause of occupational asthma. They also cause dermatitis. It can affect workers in bakeries, flour mills and kitchens. Dust clouds arise from throwing flour, disposing of empty flour bags and brushing. Bag emptying, sieving, dough making and dusting tasks all create…

INDG409 – Time to clear the air

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Local exhaust ventilation (LEV) in your workplace should carry away any harmful dust, mist, fumes or gas in the air. To protect your health it needs to be: ■ the right type for the job. ■ installed properly in the first place. ■ checked regularly and maintained throughout the year. ■ tested thoroughly at least once every year….

INDG136 – Working with substances hazardous to health: A brief guide to COSHH.

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This leaflet describes how to control hazardous substances at work, so they do not cause ill health. It will help you understand what you need to do to comply with the Control of Substances Hazardous to Health (COSHH) Regulations 2002 (as amended) which apply to the way you work with these substances. This leaflet provides…

G406 – New and existing engineering control systems.

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Engineering controls range from small, on-gun solder fume collectors, through dust hoods, fume cupboards, glove boxes and spray booths, to large-scale industrial installations. All have the same hygiene requirements: to collect or contain the contaminant; to conduct it away from the worker reliably; and to keep exposures below relevant exposure limits. When possible, use a reputable…

L138 – Dangerous substances and explosive atmospheres.

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This Approved Code of Practice (ACOP) and guidance provide practical advice on how to comply with the Dangerous Substances and Explosive Atmospheres Regulations 2002 (DSEAR). These Regulations require the elimination or reduction of risk of fire and explosion from substances connected with work activities. The ACOP is primarily for an informed and experienced audience such…

Explosive Atmospheres – Classification of Hazardous areas (zoning) and selection of equipment.

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Gases, vapours, mists and dusts can all form explosive atmospheres with air. Hazardous area classification is used to identify places where, because of the potential for an explosive atmosphere, special precautions over sources of ignition are needed to prevent fires and explosions. Explosive Atmospheres – Classification of Hazardous areas (zoning) and selection of equipment.