Traditional IRA Withdrawal Rules With a Traditional, Rollover, SEP, or SIMPLE IRA, you make contributions on a pre-tax basis (if your income is under a certain level) and pay no taxes until you withdraw money. IRA withdrawal rules and penalty details vary depending on your age.
LPG (propane) smells because an odourant - Ethyl Mercaptan - is added to the gas to make it easier to detect a leak. In their natural state, LPG (Propane and Butane) and Natural Gas (Methane) are all odourless gases. The distinctive smell that people associate with these gases is actually added to them as a safety measure.
Natural gas, which fuels your kitchen range, is odorless in its natural form. During the refining process, the chemical Mercaptan is added to the gas to give it its distinctive odor for safety purposes. Any leak can be dangerous, but not all leaks produce gas in a large enough volume to be detected by smell.