For many, reintroducing flammable gasses into the environment can be frightening. But, with proper planning and research, it's possible to minimize the risks of a leaky system or a fire. Here are some things to consider.
An inert gas plant is a device that produces inert gas and controls the atmosphere of a cargo tank. Normally, the inert gas is introduced to the cargo tank before unloading. This inert gas flush makes the tank atmosphere inert, so flammable gasses are not present. The inert gas system should be properly maintained and operated. It should be fitted with approved devices to prevent leaks and excessive vacuum. For example, the pressure/vacuum breakers should be tested and kept in good working condition.
The inert gas main should be pressurized with at least one DO mm water gauge to ensure a positive inert gas pressure. It should be connected to the cargo tank by inert gas outlets that extend at least two meters above the deck level. Inert gas must be continuously monitored during discharge and ballast operations. The inert gas plant must be shut down when cargo is ballasted. However, it can be restarted when needed.
This procedure aims to minimize the hazards associated with flammable gases. Flammable gasses present unique installation requirements. For example, they can be diluted with inert gas. Before reintroducing flammable gas into a physics experiment, a safety assessment is required. The Physics Division Experimental ES&H Review Committee should document and review the assessment results.
When introducing a flammable gas into an experimental physics installation, the Physics Division Safety Officer must approve the introduction. Once approval is obtained, the researcher must receive hands-on training. This training should be documented and made available to other users. The Physics Division Experimental ES&H Committee must appoint an independent reviewer. The reviewer must have experience with emergency equipments and operations. Upon completion of the review, the independent reviewer should submit a copy of the report to the ES&H Experimental Committee.
The ES&H Experimental Committee must formally concur with the independent reviewer's report. In the event of a high-level alarm, the power to any potential ignition sources must be shut off within three meters.
It is important to know their properties and proper handling when using compressed gases. For example, you should consult a Safety Data Sheet before using them. In addition, you should use spark-proof tools when working with them. Flammable gas is a special hazardous material category, as it can ignite and cause a fire. Flammable gas is often stored in a liquid state, but it can also be stored in a compressed form. The NEC has four representative gas groups. Each has its hazard and storage requirements. It is important to know the properties of the gas you are using and how to store it.
Compressed gas cylinders must be stored away from ignition sources, including open flames, electrical equipment, and arcing devices. It would help if you also considered the possible hazard of accidental cylinder venting. To prevent the buildup of ignitable vapour/air mixtures, you must install a fume hood. The fume hood should be connected to an approved exhaust ventilation system.
If you have an area that has a hazardous atmosphere, consider installing warning lights. These devices can help prevent a flammable gas explosion from occurring. They also allow reliable portable lighting in a hazardous area—several types of hazardous environment warning lights, including those by Wolf Safety. The company's range includes handlamps, head torches, and emergency lighting for use in hazardous areas. Each product is certified to meet NFPA Class 1 and Division 2 standards.
Before installing any flammable gas warning light, it is important to understand its functions. It must be controlled automatically and indicate real time whether the gas is on or off. Choose an encapsulated type that will prevent electrical arcs. You can also consider using a specialized hazardous location strobe light to prevent fires from occurring. The light should only be used in these environments if designed for them.