Acceptable new standard of water-quality in Japan VOC Mixture Standard

In May 2003, a new "Ministerial Ordinance for Standard of Water-quality" was issued, and executed in April 2004 to improve and maintain the quality, safety, and taste of drinking water in Japan. Due to this revision, the conventional "water quality standard criterion" and "monitoring criterion" were abolished. In their place a new "water quality standard criterion" and "water quality management target criterion" have been set, and new management system has been established. We have introduced several relevant VOC solution standards to aid in the analyses of these new criterion. In addition, we have 54 VOC mixture standard solution for water analysis.

MHLW Water quality standard criterion - Mixture of 11 diluted solutions
Contents: carbon tetrachloride, 1,1-dichloroethylene, cis-1,2-dichloroethylene, dichloromethane, tetrachloroethylene, trichloroethylene, benzene, chloroform, dibromochloromethane, bromodichloromethane, bromoform.

MHLW Water-quality management target criterion - Mixture of 6 diluted solutions
Contents: 1,2-dichloroethane, trans-1,2-dichloroethylene, 1,1,2-trichloroethane, toluene, 1,1,1-trichloroethane, tert-Butyl Methyl Ether.

MHLW Water-quality management target criterion - Mixture of 2 diluted solutions
Contents: cis-1,3-dichloropropene, trans-1,3-dichloropropene.