___ Are confined spaces thoroughly emptied of any corrosive or hazardous substances, such as acids or caustics before entry.
___ Are all lines to a confined space containing inert, toxic, flammable, or corrosive materials valved off and blanked or disconnected and separated before entry?
___ Is it required that all impellers, agitators, or other moving equipment inside confined spaces be locked out if they present a hazard?
___ Is either natural or mechanical ventilation provided prior to confined space entry?
___ Are appropriate atmospheric tests performed to check for oxygen deficiency, toxic substances and explosive concentrations in the confined space before entry?
___ Is adequate illumination provided for the work to be performed in the confined space?
___ Is the atmosphere inside the confined space frequently tested or continuously monitored during conduct of work?
___ Is there an assigned standby employee outside of the confined space, when required, whose sole responsibility is to watch the work in progress, sound an alarm as necessary, and render assistance?
___ Is the standby employee appropriately trained and equipped to handle an emergency?
___ Is the standby employee or other employees prohibited from entering the confined space without lifelines and respiratory equipment if there is any question as to the cause of an emergency?
___ Is approved respiratory equipment required if the atmosphere inside the confined space cannot be made acceptable?
___ Is all portable equipment used inside confined spaces either grounded and insulated, or equipped with ground fault protection?
___ Before gas welding or burning is started in a confined space, are hoses checked for leaks, compressed gas bottles forbidden inside of the confined space, and the confined area tested for an explosive atmosphere each time before a lighted torch (always light outside of the space) is to be taken into the confined space?
___ If employees will be using oxygen consuming equipment such as salamanders, torches, furnaces, etc. in a confined space, is sufficient air provided to assure combustion without reducing oxygen concentration of the atmosphere below 19.5% by volume?
___ Whenever combustion equipment is used in the confined space, are provisions made to ensure the exhaust gases are vented outside of the enclosure?
___ Is each confined space checked for possible industrial waste which could contain toxic properties?
___ Is each confined space checked for decaying vegetation or animal matter which may produce methane?
___ If the confined space is below ground and near areas where motor vehicles will be operating, is it possible for vehicle exhaust or carbon monoxide to enter the space?
Copyright (c) 1999 . All rights reserved.
Last modified: Monday April 26, 1999.