The current document is a revision of WHO good manufacturing practices: water
for pharmaceutical use, previously published in WHO Technical Report Series, No. 929, Annex 3, 2005.
The guidance contained in this document is intended to provide information about the available specifications for water for pharmaceutical use (WPU), guidance about which quality of water to use for specific applications, such as the manufacture of active pharmaceutical ingredients (APIs) and dosage forms, and to provide guidance on good manufacturing practices (GMP) regarding the design, installation and operation of pharmaceutical water systems. Although the focus of this document is on water for pharmaceutical applications, the
guidelines may also be relevant to other industrial or specific uses where the
specifications and practices can be applied...