Sodium hypochlorite, commonly known as bleach, is most frequently used as a disinfecting agent. It is a broad-spectrum disinfectant that is effective for the disinfection of viruses, bacteria, fungi, and mycobacterium. However, sodium hypochlorite is NOT effective in the disinfection of bacterial spores and prions.
Concentration and contact time
The appropriate concentration of sodium hypochlorite for disinfecting general liquid biological waste is 5000ppm, approximately 0.5%. Household bleach is 5 - 6 % sodium hypochlorite; therefore a 1:10 (v/v) dilution of bleach to liquid biological waste is appropriate. For biological waste containing a high organic load (e.g. blood, proteins, or lipids) the appropriate concentration of sodium hypochlorite is 10000ppm, approximately 1%, therefore a 1:5 (v/v) dilution of bleach to liquid biological waste is appropriate.
Minimum Contact time:
- Surface disinfection - 1 min
- Liquid waste disinfection - 20 min
Important Notes: Discount brands of bleach may have lower concentrations of sodium hypochlorite and "colour safe" bleach contains NO sodium hypochlorite (hydrogen peroxide), these products should NOT be used for the disinfection of biological waste. Sodium hypochlorite is known to be corrosive to metals, therefore, it important to wipe down metal surfaces with water or ethanol after treating them with a bleach solution.
Bleach should be stored between 2-8°C (50-70°F). According to Clorox, undiluted household bleach has a shelf life of six months to one year from the date of manufacture, after which bleach degrades at a rate of 20% each year until totally degraded to salt and water, and a 1:10 bleach solution has a shelf life of 24 hours. Bleach must be stored separately from corrosives, soaps, detergents or other cleaning products.
hydrobot disinfectant generator
hydrobot is a home appliance that produces Sodium Hypochlorite Solution in 650mg/L (0.065%), and up to 1250mg/L (0.125%) with two cycles. It is safe for household usages like kitchen / tiles / floor / toilet cleaning, clothing / shoes / carpet / sofa / bed disinfection, washing hand / leg / face, odor elimination, air disinfection, and even degrade pesticide residuals on fruits / vegetables.
1 ppm = 1 mg per liter = 1 mg/Liter.
5000 ppm = 5000 mg/L = 0.5%.
650 ppm = 650 mg/L = 0.065%.
Please refer to our usual manual for the dilution ratio for different purposes
eg: Vegetable and fruit disinfection, degradation of residual pesticides, cleansing and retain freshness
● Concentration : 100 ~ 200mg/L.
● Method : Dilute the produced solution with water 1:3 ~ 1:6.5 times.
● Usage : Wash it first, then soak with the solution for 10 minutes, rinse with water before eating or cooking
● Effect : It can effectively kill germs and viruses, effectively degrade residual pesticides, and significantly antiseptic and fresh-keeping.
● Side effects : None.
eg: Disinfection for body surface
● Concentration : 50 ~ 280mg/L.
● Method : Dilute the produced solution with water 1:13 ~ 1:2.5 times.
● Usage : Soak, rinse or wipe the body for 10 minutes. Use high concentration for 30 minutes when the body is contaminated.
● Number of usage: Once a day.
● Effects : Significant. During the hot days, sweating may cause skin itchy. You may soak, rinse or wipe the body with diluted disinfectant to effectively disinfect body surface.
● Side effects: None.
eg: Disinfection for desks, computers, phones, sofa, carpet, etc public tools
● Concentration : 150 ~ 200mg/L.
● Method : Dilute the produced solution with water 1:4 ~ 1:3.
● Usage : Spray on the surface of the object, wipe it with clean water after 10 minutes of reaction. Non-metallic and non-electrical appliances can skip the wiping.
● Side effects : None.
● Effect : It can effectively kill germs and viruses, and remove odor.
