A propane tank explosion is a type of BLEVE, or Boiling Liquid Expanding Vapor Explosion. This type of explosion occurs when the pressure in the tank exceeds that which it can safely vent. Eventually, rising pressure will cause the tank to rupture and burst. Cause. A propane BLEVE occurs mainly when it is exposed to high temperatures, like a fire. The temperature heats the liquid propane inside the tank, causing it to expand to a point that the stress it places on the tank becomes too high. When propane gas leaks from the tank in a fire, it will ignite and can cause an explosion. Relief Valve. All propane tanks are equipped with a relief valve. When the pressure inside a tank rises, the relief valve opens and starts venting gas to bring the pressure down.
The exemption is composed of personal exemptions for the individual taxpayer and, as appropriate, his or her family and dependents, as provided in Internal Revenue Code at 26 U.S.C. Â§ 151. The income tax liability is calculated by applying the appropriate tax rate to the taxable income (26 U.S.C. Â§ 1). 1 Overview.
Exemptions. A tax exemption is money you earned but donât have to pay taxes on. (Note: Exemptions are different than deductions, which we will cover shortly.) According to the IRS, for the 2016 tax year, the personal exemption amount is $4,050. Claiming all the exemptions for which you qualify can really reduce your tax bill. The amount of exemptions you are allowed to claim depends on the status of your filing. If Youâre a Single Taxpayer: If you are single, you can claim a personal tax exemption for yourself. However, if you are listed as a dependent on someone elseâs tax return, you are not allowed to file a personal tax exemption.