Partial parameter detection of drinking water

Drinking water mainly considers its impact on human health, and its water quality standards include not only physical and chemical indicators, but also microbial indicators; For industrial water, consider whether it affects product quality or is prone to damage containers and pipelines

1. Water quality detection chromaticity: When the chromaticity of drinking water exceeds 15 degrees, most people can detect it, and when it exceeds 30 degrees, people feel disgusted. The water quality testing standards stipulate that the chromaticity of drinking water should not exceed 15 degrees

2. Water quality detection turbidity: It is an expression of the optical properties of water samples, used to indicate the degree of clarity and turbidity of water. It is one of the most important indicators to measure the degree of good water quality, and also an important basis for assessing the purification efficiency of water treatment equipment and evaluating the status of water treatment technology. The decrease in turbidity means that the content of organic matter, bacteria, viruses and other microorganisms in the water decreases. This not only improves the disinfection and sterilization effect, but also helps to reduce the generation of halogenated organic matter

3. Odor and Odor: The generation of water odor is mainly due to the presence of organic matter, which may be a manifestation of increased biological activity or industrial pollution. The change in the normal odor of public water supply may be a signal of a change in raw water quality or inadequate water treatment

4. Visible to the naked eye: mainly refers to particles or other suspended substances present in water that can be observed by the naked eye

5. Residual chlorine: Residual chlorine refers to the amount of chlorine remaining in water after being disinfected with chlorine and exposed to it for a certain period of time. Having continuous bactericidal ability in water can prevent self pollution of water supply pipelines and ensure water quality

6. Chemical oxygen demand: refers to the amount of oxygen required for chemical oxidants to oxidize organic pollutants in water. The higher the chemical oxygen consumption, the more organic pollutants in the water. Organic pollutants in water mainly come from the discharge of domestic sewage or industrial wastewater, and from the decomposition of animals and plants that flow into the water body

7. Total number of bacteria: The bacteria contained in water come from air, soil, sewage, garbage, and animal and plant corpses. The types of bacteria in water are diverse, including pathogenic bacteria. The standard for drinking water in China is that the total number of bacteria in 1ml of water should not exceed 100

8. Total coliform bacteria: It is an indicator of fecal pollution, and the detected situation can indicate whether there is fecal pollution in the water and the degree of pollution. In the process of water purification, if the total coliform index meets the requirements of drinking water standards after disinfection treatment, it indicates that other pathogenic bacteria have also been basically eliminated. The standard is not to exceed 3/L during testing

9. Heat-resistant Escherichia coli group: It more accurately reflects the degree of food contamination by human and animal feces than the coliform group, and is also an indicator of water fecal pollution

Function of testing report:

1. Project bidding: Issue authoritative third-party CMA/CNAS qualification report

2. Online e-commerce platform entry: Quality inspection report recognized by major e-commerce platforms

3. Used as a sales report: issuing legally effective testing reports to make consumers more confident

4. Papers and research: Provide professional personalized testing needs

5. Judicial services: providing scientific, fair, and accurate testing data

6. Industrial problem diagnosis: Verify the troubleshooting and correction of industrial production problems

BAIJIAN testing process:

1. Telephone communication and confirmation of requirements

2. Recommend solutions and confirm quotations

3. Mail samples and arrange testing

4. Progress tracking and result feedback

5. Provide reports and after-sales service

6. If urgent or priority processing is required

Our Competitive Edge:

1. The testing industry is fully covered, meeting different testing needs

2. Fully cover the laboratory and allocate localized testing nearby

3. Engineers provide one-on-one services to make testing more accurate

4. Free initial testing, with no testing fees charged

5. Self service order delivery for free on-site sampling

6. Short cycle, low cost, and attentive service

7. Possess authoritative qualifications such as CMA, CNAS, CAL, etc

8. The testing report is authoritative and effective, and is generally used in China