Which application scenarios need to focus on chloride ion residuals?

Surgical instrument cleaning and disinfection: the relationship between chlorine content in water and pitting corrosion. The 2016 10th Anniversary Edition of "Instrument Preservation Cleaning and Disinfection Treatment" pointed out that the chlorine content at room temperature is less than about 120 mg/l (equivalent to 200 mg/ l Sodium chloride = NaCl), the possibility of pitting corrosion is very small. As the chlorine content increases, the possibility of pitting corrosion increases sharply.

Cleaning and disinfection of food processing machinery: Food processing machinery is mostly made of stainless steel and needs to be cleaned and disinfected frequently. Some parts even need to be immersed and disinfected after disassembly, which increases the risk of corrosion.

Cleaning and disinfection of the dental waterway: There are many metal joints in the dental waterway, and even some old dental hospitals still use cast iron pipes. If the residual chloride ion concentration is too high, corrosion will be inevitable.

Therefore, in these application scenarios, it is necessary to pay attention to the removal of residual chloride ions to protect the integrity of the equipment.