This standard applies to the manufacture, testing and acceptance of rectangular block hole graphite heat exchangers impregnated with phenolic resin. This series of rectangular block hole graphite heat exchangers can be used in heat exchange processes such as heaters, coolers, and condensers.
HG/T 3187-1980 history
2012HG/T 3187-2012 Heat exchanger of graphite rectangular-block
1999HG/T 3187-1999 Heat exchanger of graphite rectangular-block
1970HG/T 3187-1980 Heat exchanger of graphite rectangular-block