Title: Method for mfg. available chlorine indicator paper
Application Number: 90101818 Application Date: 1990.03.30
Publication Number: 1055240 Publication Date: 1991.10.09
Approval Pub. Date: Granted Pub. Date: 1993.07.07
International Classifi-cation: G01N31/22
Applicant(s) Name: Xi'an Central Epidemic Prevention Station, Zhengzh Address: 710004
Inventor(s) Name:
Attorney & Agent: SUN FENG
Abstract:
     The method is based on chelation of polyvinyle pyrrolidone and potassium iodide to test the content of active chlorine, uses sodium carbonate and sodium bicarbonate as buffer solution, and adds a small amount of polyvinyl alcohol and ascorbic acid. Advantages: high accuracy, clear color grade, long time of efficacy, stable, safe and non-poisonous. The method can be used in medicine, food inspection and environment protection.
Time: 6