- The BSI Group, formerly the Engineering Standards Committee, is a leading provider of standards-based solutions. BSI Group standards are provided for national and international jurisdictions, as well for private organizations.
- The standard relevant information to the use of heat exchangers and condensers is entitled "BS EN 13487:2003--Heat Exchangers; Forced convection air cooled refrigerant condensers and dry coolers; Sound measurement." It contains information on heat exchangers, liquid-cooled systems, cooling systems, convection, refrigerants and sound intensity, among other topics.
- This standard may be purchased from the BSI Group website. Standards are available in hard-copy or pdf file formats. As of 2011, the purchase price is 130 British Pounds (about $200) for non-members and 65 British Pounds (about $100) for members.