A good nine-word summary used by UL is, A not-for-profit organization dedicated to public safety.. UL sets standards for different product categories and tests products to make sure they meet the standards. In this way, UL is similar to the CE marking organization. UL may also certify the installation of products in the field. Underwriters, by the way, are insurers. To learn more, see the links on the next page.
Shredder oil is the only lubricant which should be used on your shredder. Shredder oil is of special formulation which leaves no residue on the cutters. Other oils will attract paper dust and in turn clog the cutting head. Do or Do not, there is no try - Yoda.
Fish oil is primarily EPA and DHA, both of which are extremely unsaturated. The greater the degree of unsaturation, the greater the propensity to go rancid. When these oils go rancid, they convert to harmful oxidized fats called lipid peroxides which can damage fatty cellular membranes. How to avoid fish oil to go rancid?