Ventilation confined space

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An oxygen-enriched atmosphere (above 23.5%) will cause flammable materials, such as clothing and hair, to burn violently when ignited. Never use pure oxygen to ventilate a confined space. Ventilate with normal levels of oxygen. 

The Conductive Saddle Vent Ventilation Kit is the safest method for removing static build-up during confined space ventilation. 

Carbon dioxide CO2 Panel colour Liquids such as grease, fats, oil paint, petrol, etc. but not on chip or fat pan fires. Do not use on chip or fat. This type of extinguisher does not cool the fire very well and you need to watch that the fire does not start up again Fumes from CO2 extinguishers can be harmful if used in confined spaces ventilate the area as soon as the fire has been controlled Vaporising liquid gas which smothers the flames by displacing oxygen in the air. 

For Use in Hazardous and Non-Hazardous Locations Confined Space Ventilation Equipment Explosion-Proof, Electric, Gasoline,Pneumatic Fans and Blowers Environmental Control HEPA Vacuums and Welding Fume Extractors Remote Area Lighting DC Powered for Outdoor and Indoor Use... 

Prolonged soldering in confined spaces with restricted air circulation requires ventilation. A small duct fan is recommended for hot-wire stripping. Tefzel articles should not be exposed to welding conditions. 

Air supplied in confined space by downward vertical jets creates a similar flow pattern as in the case of air supply by horizontal nonattached jets. With vertical air supply, the occupied zone is ventilated directly by air jets. Grimitlyn suggests that the area of occupied zone ventilated by one jet be sized based on the jet s cross-sectional area at the point it enters the occupied zone. The jet cross-sectional area and configuration depend upon the height of the air supply, the type of air jet, and diffuser characteristics ( K, and K, ). 

Shepelev, L A., and M. D. Tarnopolsky. 1965. Turbulent air jet spreading in the confined space. In Heat-, Gas Supply and Ventilation Proceedings of the Conference. Budivelnik, Kiev. 

Section 11.2 (d) describes an incident in which no tests were carried out and the vessel was not recognized as a confined space because ventilation was good. When the vessel was moved indoors, ventilation was no longer good, and a man was overcome. 

It can be seen that water has the highest vapor pressure therefore, provided these amines are stored in cool places with adequate ventilation, there is little risk of dangerous inhalation. Drums should not be stored in confined spaces. 

Potential sources of carbon monoxide hazards include metal-refining processes, in which it is formed as a byproduct and used as a fuel (LEL 12.5%), and running vehicle engines (particularly petrol-driven) or gas-fired heaters in poorly ventilated confined spaces. It is also a feedstock in the manufacture of a variety of chemicals, e.g. methanol, acetic acid, phosgene and oxo-alcohols. 

Use oxygen instead of fresh air to ventilate or cool a confined space. 

If applicable, locate oxygen cylinders outside any confined space and in an area of good ventilation. 

Evacuate danger area immediately Consult an expert Ventilation. Absorb remaining liquid in sand or inert absorbent and remove to safe place. Do NOT wash away into sewer. NEVER direct water jet on liquid. Prevent from entering confined spaces. Do NOT let this chemical enter the environment (extra personal protection gas-tight chemical protection suit including self-contained breathing apparatus). 

CAUTION The release of large quantities of liquid nitrogen in a confined space displaces air and can lead to asphyxiation. The areas where liquid nitrogen is dispensed or handled in significant quantities should he well ventilated. 

A discussion of the need for adequate ventilation for areas in which people are working close to nitrogen-enriched confined spaces. 

Ventilation protection Adequate ventilation is essential in confined spaces. 

The chemical release into a confined space is life threatening. High-pressure liquid, falling objects, and slippery surfaces in a confined space are all potential hazards. The limited space, inadequate ventilation and light, and excessive noise are also physical hazards that increase the confined space hazards. The chemical waste and useful chemicals are also life threatening. 

Preparing a confined space for example, by isolation, lockout, tag out, purging, cleaning, and ventilation, and procuring special equipments and tools if required... 

Small Areas Consolidate as much material as possible and place into containers. In heavily contaminated areas, employ vacuum devices equipped with High Efficiency Farticulate Air (HEFA) filters to remove as much agent as possible. Ventilate any enclosed or confined spaces. 

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