The following formula is used to calculate the specific gravity of a material. SG = Ï / ÏW. Where SG = specific gravity, Ï = density of the material (kg/m3), ÏW = density of water ( kg/m3). The reference density of water at 4oC (39oF) is used as the reference as these are the conditions of maximum density.
Donât throw bank statements away after six years. August 12, 2013 85237 ViewsFacebook: 808Twitter: 41. The conventional wisdom is you only need to keep bank, credit card and other personal finance documents for six years. This is because HMRC (the taxman) can only ask you to go back that far if youâre being investigated for tax purposes.
Once you verify they match, you can toss the receipts. Unless there is a tax related purchase, you should keep the statement for seven years. Otherwise, there is no need to keep the statement any longer than 60 days. As with banks, you could get statements online too.Though again, most only go back a certain number of years.Note: Since many have online access to your statements, you may ask why the need to keep them. After all, the bank can get them for you. While this is true, most banks will only do this for you back to a certain time, say two years. Anything older is considered âresearchâ and they charge you per the hour for this.