To test water quality, you can go to the local environmental protection monitoring station or the local health and epidemic prevention station (also called the Center for Disease Control).
Generally, water quality testing is completed by professional water quality verification personnel. It is unscientific to directly fill water in bottles and send it to the testing department for testing, because the sampling bottles for each project have strict requirements, and Many projects require the addition of fixative.
The main indicators of water quality testing:
1. Color
Most people can detect the color of drinking water if it is greater than 15 degrees, and if it is greater than 30 degrees People feel disgusted. The standard stipulates that the color of drinking water should not exceed 15 degrees.
2. Turbidity
It is an expression of the optical properties of water samples. It is used to express the degree of clarity and turbidity of water. It is one of the most important indicators to measure the quality of water. First, it is also an important basis for assessing the purification efficiency of water treatment equipment and evaluating the status of water treatment technology.
3. Odor and taste
The generation of water odor is mainly caused by the presence of organic matter, which may be a manifestation of increased biological activity or caused by industrial pollution. Changes in the normal odor of public water supplies may be a sign of changes in raw water quality or inadequate water treatment.
4. Objects visible to the naked eye
Mainly refers to particles or other suspended matter present in water that can be observed with the naked eye.
5. Residual chlorine
Residual chlorine refers to the amount of chlorine remaining in the water after chlorine disinfection and contact for a certain period of time. The continuous sterilization ability in water can prevent the self-pollution of water supply pipelines and ensure the quality of water supply.