Household bleach is sodium hypochlorite 5 - 6 % (w/v).For biological waste containing a high organic load (e.g. blood, proteins, or lipids) the appropriate concentration of sodium hypochlorite required is 10000ppm, approximately 1%. Dilute the Household bleach is sodium hypochlorite 5 - 6 % (w/v) in 1:5 ratio. Minimum Contact time: Surface disinfection - 1 min Liquid waste disinfection - 20 min We are the leading manufacturer of sodium hypochlorite 5-6% in Chennai.