Our Quality Assurance and Research and Development programs are in high gear working to answer many of the questions raised by this recent ruling. We will continue to keep our customers updated on all developments as they occur, by using forums such as direct customer mailings and the Pharmacal FactSheet . PRL QA Department Water hardness is common throughout the United States and Canada. More companies are using water softeners than ever before. It is important that they are used properly and checked regularly.
Water hardness is caused by dissolved minerals, usually calcium and magnesium.
These minerals combine with other ions and compounds to leave deposits on surfaces. Cleaning agents in detergents react with oils and grease, and when in the presence of hard water, soap curd deposits will occur. The standard degree of water hardness established by the Water Quality Association and the American Society of Engineers is summarized in this table. In cases of hard water, a water softener may be necessary. A typical water softener uses ion exchange.