Compressed Gases Storage Compressed gases are defined as gases that are contained in a receptacle at a pressure not less than 280 kPA at 20 °C or as a refrigerated liquid. The following guidelines for storing compressed gases must be followed in all laboratories: Compressed gas cylinders (cylinders) must be stored in a secure, well ventilated location, and in an upright position at all times. All cylinders should be handled as if full and should never be completely emptied. Cylinders that are not in use (meaning that the cap is on) must be secured and have the safety cap. Multiple cylinders may be secured together (gang-chained), only if they are capped (not in use). Only capped cylinders can be secured with a single restraining device (gang chained) as shown in Figure 5.3. Cylinders that are in use, meaning is a regulator attached, must be individually secured by a chain or strap as shown in Figure 5.4. Cylinder valves and regulators should be protected from impact or damage. Figure 5.3 Not In-Use Cylinders Figure 5.4 In-Use Cylinders – – Reactive Materials Storage Reactive materials include explosives, pyrophorics, self-heating and self-reacting compounds, and Many reactive materials are also toxic and are dissolved or immersed in a flammable solvent (e.g., lithium alkyl compounds dissolved in diethyl ether, sodium metal immersed in mineral oil). Other common hazards often associated with reactive chemicals include corrosivity, teratogenicity, or organic peroxide formation. The following guidelines for storing reactive materials must be followed in all laboratories: The amount of reactive materials stored in the lab must be kept to a minimum. Any expired or unnecessary reactive materials must be properly disposed of as hazardous waste. All reactive materials must be clearly labeled with the original manufacturer’s label, which should have the chemical name, hazard labels, and pictograms. The label should not be defaced in any way. All reactive materials should be placed into secondary containment as a best management practice. Suitable storage locations for reactive materials include inert gas-filled desiccators or glove boxes, flammable storage cabinets that do not contain aqueous or other
Compressed Gases Storage Compressed gases are defined as gases that are contained in a receptacle at a pressure not less than 280 kPA at 20 °C or as a refrigerated liquid. The following guidelines for storing compressed gases must be followed in all laboratories: Compressed gas cylinders (cylinders) must be stored in a secure, well ventilated location, and in an upright position at all times. All cylinders should be handled as if full and should never be completely emptied. Cylinders that are not in use (meaning that the cap is on) must be secured and have the safety cap. Multiple cylinders may be secured together (gang-chained), only if they are capped (not in use). Only capped cylinders can be secured with a single restraining device (gang chained) as shown in Figure 5.3. Cylinders that are in use, meaning is a regulator attached, must be individually secured by a chain or strap as shown in Figure 5.4. Cylinder valves and regulators should be protected from impact or damage. Figure 5.3 – Not In-Use Cylinders Figure 5.4 – In-Use Cylinders Reactive Materials Storage Reactive materials include explosives, pyrophorics, self-heating and self-reacting compounds, and Many reactive materials are also toxic and are dissolved or immersed in a flammable solvent (e.g., lithium alkyl compounds dissolved in diethyl ether, sodium metal immersed in mineral oil). Other common hazards often associated with reactive chemicals include corrosivity, teratogenicity, or organic peroxide formation. The following guidelines for storing reactive materials must be followed in all laboratories: The amount of reactive materials stored in the lab must be kept to a minimum. Any expired or unnecessary reactive materials must be properly disposed of as hazardous waste. All reactive materials must be clearly labeled with the original manufacturer’s label, which should have the chemical name, hazard labels, and pictograms. The label should not be defaced in any way. All reactive materials should be placed into secondary containment as a best management practice. Suitable storage locations for reactive materials include inert gas-filled desiccators or glove boxes, flammable storage cabinets that do not contain aqueous or other
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