title: Health safety of main water pipe materials supplied in China market.
abstract: OBJECTIVE
  To assess the health safety of copper, steel and plastic water pipes by field water quality investigations.
  
  
  METHODS
  Four consumers were randomly selected for each type of water pipes. Two consumers of every type of the water pipes had used the water pipes for more than 1 year and the other 2 consumers had used the water pipes for less than 3 months. The terminal volume of tap water in copper and steel water pipes should be not less than 0.1 liter, whereas that in plastic water pipes should be not less than 1 liter.
  
  
  RESULTS
  The mean values of the experimental results in the second field water quality investigation of the copper and steel water pipes met the Sanitary Standards for Drinking Water Quality. The items of water sample of the plastic water pipes met the requirements of the Sanitary Standards for Drinking Water Quality.
  
  
  CONCLUSIONS
  Copper, steel, and plastic pipes can be used as drinking water pipes.
authors.affiliation: College of Science, China Agricultural University, Beijing 100094, China.
authors.forename: Kai
authors.initials: K
authors.lastname: Lu
authors.forename: Liang
authors.initials: L
authors.lastname: Ding
authors.forename: Hong-Wei
authors.initials: HW
authors.lastname: Wang
authors.forename: Hai-Ning
authors.initials: HN
authors.lastname: Jing
authors.forename: Xiao-Ning
authors.initials: XN
authors.lastname: Zhao
authors.forename: Shao-Bin
authors.initials: SB
authors.lastname: Lin
authors.forename: Ya-Dong
authors.initials: YD
authors.lastname: Li
authors.forename: Yin-Long
authors.initials: YL
authors.lastname: Jin
authors.forename: Feng-Mao
authors.initials: FM
authors.lastname: Liu
authors.forename: Shu-Ren
authors.initials: SR
authors.lastname: Jiang
mesh_terms: D002681:China; D003300:Copper / Q000032:analysis*; D006801:Humans; D008420:Manufactured Materials / Q000592:standards; D008422:Materials Testing; D010969:Plastics / Q000032:analysis*; D011634:Public Health; D011786:Quality Control; D013232:Steel / Q000032:analysis*; D014867:Water / Q000737:chemistry*; D014873:Water Pollutants / Q000032:analysis; D014881:Water Supply / Q000592:standards
chemical_list: D010969:Plastics; D014873:Water Pollutants; D014867:Water; D013232:Steel; D003300:Copper