Lianhua Technology created the first swift digestion spectrophotometric technique for the calculation of Chemical Oxygen Demand (COD) and pioneered the development of quality testing instruments for water. The testing instruments Residual Chlorine Analyzers quantify chlorine residuals during treatment of potable water and compliance of treatment residuals with environmental regulations. They can be used to monitor response time at the treatment facility, during scientific research, and in the food processing industry. They can also be used at municipal water treatment facilities. By acquiring over 100 independent rights to intellectual property, Lianhua Technology has proven commitment to quality to the market. The numerous active proprietary intellectual property rights certifications have proven Lianhua Technology's commitment to quality. Response to the market has also been demonstrated with the active proprietary certifications which exceed 100. The response to proven market quality has been demonstrated with the attainment of over 100 independent proprietary rights certifications. Lianhua Technology's response to quality has resulted in over 100 proprietary certifications.