In order to implement the Environmental Protection Law of the People's Republic of China and the Water Pollution Prevention and Control Law of the People's Republic of China, prevent and control ecological environment pollution, improve ecological environment quality, and standardize the determination method of organic halogens that can be adsorbed in water, this standard is formulated.

This standard specifies the microcoulometric determination method for adsorbable organic halogens in surface water, groundwater, domestic sewage, and industrial wastewater. Compared with the "Determination of Adsorbable Organic Halogens (AOX) in Water Quality by Microcoulometric Method" (GB/T 15959-1995),

The main differences are as follows:

——Modified the scope of application, principle of the method, and conditions for sample collection and storage;

——Deleted the sample stripping step;

——Improved the requirements for standard verification solutions and sample preparation;

——Refined the content of calibration, sample determination, and result representation;

——Added clauses for interference and elimination, quality assurance and quality control.

From the date of implementation of this standard, the "Micro Coulombic Method for Determination of Adsorbable Organic Halogens (AOX) in Water Quality" (GB/T 15959-1995) approved and released by the former National Environmental Protection Administration on December 21, 1995 shall cease to be implemented in the corresponding national pollutant discharge standards.

If you need to purchase the experimental equipment for this standard, you can contact Hangzhou Blue Sky Instrument Co., Ltd. AOX-WK-S Microculometer. This equipment is equipped with all the components required for the entire standard and is accompanied by technical personnel to provide on-site guidance. The recovery rate of AOX-WK-S is over 80%, which is higher than that of imported products from abroad.