Why is disinfectant called 84? What does it mean?

84 "has its special meaning. In 1983, beijing ditan hospital accepted the scientific research project of Beijing Science and Technology Commission, and developed a disinfectant that can kill hepatitis virus for daily protection of medical staff. After more than a year's efforts, we tried and groped from more than 7 formulas and more than 3, tests, and finally passed the expert evaluation organized by Beijing Municipal Health Bureau in October 1984. In order to commemorate the successful development, this disinfectant was named "84" disinfectant. The 84 disinfectant produced and sold by Longan Company in beijing ditan hospital has a high reputation and credibility. This is the familiar "Longan brand 84 disinfectant". Because it is produced by the research institute, it has won the first choice and recognition of many consumers. The birth of "84" is a pioneering work in China disinfection industry, and it has almost become synonymous with disinfectant. Consumers never know the meaning of disinfection and disinfectant, and today Longan 84 is the first choice.