Best Answer: the rate of diffusion is directly proportional to the concentration gradient. The greater the difference in concentration between two areas, the greater the rate of diffusion.
EPC-40: Electrical Plastic Conduit : Designed for normal duty application. EPC-80: Electrical Plastic Conduit : Designed for heavy duty application.
An Energy Performance Certificate (EPC) is a legal requirement whenever a property is built, sold or rented. Since October 2008, legislation, under the Energy Performance of Buildings Directive, has made it illegal to market a property without a valid EPC. You must order an EPC for potential buyers and tenants before you market your property to sell or rent.