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Butane is a flammable hydrocarbon with the molecular formula C 4 H 10. It is a natural gas perhaps best known for its use as a fuel for refillable and disposable lighters.Butane's uses can be observed in many sectors of life. It is a reliable source of energy, and can be obtained through the processing of natural gas.utane serves as fuel for both the disposable and refillable lighter. Butane is used in this item for its high flammability and its low cost to produce. The butane torch is another item that takes advantage of its flammable properties.
Previously, OSHA had no limit for butane. The ACGIH has a TLV-TWA of 800 ppm for this colorless, flammable gas. The proposed PEL was 800 ppm as an 8-hour TWA, and NIOSH (Ex. 8-47, Table N1,) concurs with this limit.The final rule promulgates an 8-hour TWA of 800 ppm.he ACGIH has a TLV-TWA of 800 ppm for this colorless, flammable gas. The proposed PEL was 800 ppm as an 8-hour TWA, and NIOSH (Ex. 8-47, Table N1,) concurs with this limit. The final rule promulgates an 8-hour TWA of 800 ppm.