Peracetic acid formulation concentration determination method

A method for determining concentration of a peracetic acid,

• comprising a step of forming a target solution comprising combining a peracetic acid containing composition with a reagent of a predetermined concentration, and placing the target solution into a light-transmissive container,
• wherein the peracetic acid containing composition, comprises peracetic acid at a concentration in a range of 50 mg/L to 500 mg/L,
• a step of transmitting light through the light-transmissive container that contains the target solution,
• a step of comparing a color of the transmitted light transmitted through the light-transmissive container that contains the target solution against a plurality of color samples so that the concentration of the peracetic acid in the target solution is determined, wherein each color sample of the plurality of color samples represents a color corresponding to a different predetermined concentration of peracetic acid within a range of 50 mg/L to 500 mg/L
• wherein the target solution exhibits an absorbance of 1.5 with respect to light at a wavelength range-from 410 nm to 509 nm, and
• wherein the reagent of the predetermined concentration is potassium iodide at a concentration of 10%.