In 1996, the USP developed a new method, proposed by the Water Quality Committee of the US PhRMA, in order to control and measure the quality of the water used for all pharmaceutical products wishing to enter the US market, regardless of where they are produced. This method, USP <645>, defines the suitability of Purified Water (PW) and Water for Injection (WFI) samples through conductivity readings.

Download this white paper to learn about USP <645> requirements, along with tips and tricks on how to meet specifications.