Frequently Asked Questions
Some manufacturers and distributors claim that trigger spray bottles containing ready-to-use disinfectant solution should be changed daily. Is there any truth to this claim?
No. A raw material manufacturer of quaternary ammonium compound disinfectants performed testing on the ready-to-use version of a 10% disinfectant to determine the time frame wherein the product would remain effective. The original testing was performed in August of 1994 and passed all efficacy testing requirements. The testing was then repeated in May of 1996. The product again proved to be efficacious a year and nine months later. Therefore, it is concluded that the shelf-life of quaternary ammonium compound disinfectants in their ready-to-use form is at least one year. Note, however, that there are many variables to consider concerning shelf-life. These include hardness of water, contamination of the concentrate or ready-to-use product and the integrity (composition and seal) of the container.
Found In: Disinfectants