This code is applicable to the design of newly built, expanded and reconstructed industrial water softening and desalination projects, but not applicable to water pretreatment and wastewater treatment.
GB/T 50109-2006 history
2014GB/T 50109-2014 Design code for softening and demineralization of industrial water
2006GB/T 50109-2006 Design code for softening and demineralization of industrial water
GB/T 50109-2006 Design code for softening and demineralization of industrial water has been changed from GBJ 109-1987 Code for design of industrial water softening and desalination.