This standard specifies the product classification of plastic cooling fans for internal combustion engines, product marking methods, technical requirements, inspection rules, marking, packaging, transportation and storage. This standard applies to plastic cooling fans for water-cooled and oil-cooled internal combustion engines with an outer diameter not greater than 750mm.
JB/T 6723.2-1993 history
2014JB/T 6723.2-2014 Cooling fan for internal combustion engines.Part 2: Plastic fans.Specification
2008JB/T 6723.2-2008 Cooling fan for internal combustion engines.Part 2:Technical requirements of plastic fan
1993JB/T 6723.2-1993 Cooling fans for internal combustion engines Part II: Specifications for plastic cooling fans