Application and disinfection standards of chlorine-containing disinfectants

- Aug 04, 2020-

Definition of available chlorine: The oxidizing ability of chlorine-containing disinfectants is equivalent to the amount of chlorine, which is a measure of the oxidizing ability of chlorine-containing disinfectants. The effective chlorine content is expressed in mg/L or percentage (%). Conversion: 1% effective chlorine concentration=10000ppm=10000mg/L.

multiple water test meter  

Application scope: general chlorine disinfectant is suitable for the disinfection of general surface of medical and health institutions, public places and households, medical equipment, medical waste, food and drink utensils, fabrics, fruits and vegetables and water, etc., and also suitable for various foci Treatment of pollutants.

Multi-parameter Meter

Disinfection methods and standards: immersion method, wipe method, spray method, dry powder disinfection method. 

(1) Soaking method: Immerse the cleaned items to be disinfected in a container containing chlorine disinfectant solution and cover it. Items contaminated by bacterial propagule: Soak for more than 10 minutes with 500mg/L of available chlorine, and spread pathogens, mycobacteria, and bacterial spores through blood: 2000mg/L-5000mg/L, soak for more than 30 minutes. 

(2) Wipe method: large items or other items that cannot be disinfected by immersion are disinfected by wiping. The solubility and action time used for disinfection are the same as the immersion method. 

(3) Spraying method:-Generally contaminated surface; 400mg/L--700mg/L, the action time is 10 minutes-30 minutes or more. To contaminate the surface with blood-borne pathogens, mycobacteria, spores, etc.: 2000mg/L or more, acting for more than 60 minutes. There is a strong pungent smell after spraying, and personnel should leave immediately. 

(4) Dry powder disinfection method: For the disinfection of excrement, dry powder of chlorine-containing disinfectant is added to the excrement.


Note: The surface of general objects refers to the surfaces of daily necessities such as tables and chairs, bedside tables, sanitary ware, door and window handles, stair railings, bus seats, handles and children's toys. Quoted from "GB/T 36758-2018 Hygienic Requirements for Chlorine Disinfectants"

Residual Chlorine Test Strips

In addition to the above-mentioned uses, hypochlorous acid disinfectant can also be widely used in swimming pools, tap water, secondary water supply, aquaculture water, hospital dialysis room water, medical sewage disinfection, etc.