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.
I have heard for bills, 1 year. For bank statements, I keep them 7 years (because I don't know what to do with them).Although the exception to that is mortgage and car payments. I've heard to keep copies of those canceled checks for the entire time you own the house or car.'ve done this for 8 years w/ no problem. Also most bills/cc you can look at at least 6 mths of statements online and even more if you go to paperless. I do keep all of my health papers just in case. It helps.