2020-11-16

Battery testing and certification special introduction: With the development of electronics, information and communication products in the direction of wireless and portability, the high-performance components of the products are also moving towards the goal of "light, thin, short and small". It has been widely used as the best power supply. However, in recent years, global battery recalls have caused concerns about the safety of battery products in the international market. At the same time, market supervision agencies in various countries have increased their supervision of battery products. , Making battery manufacturers face the challenge of improving product quality. In recent years, Nuoer Testing has gradually strengthened its investment in battery testing, improved various battery testing instruments, and provided customers with comprehensive battery testing and certification services to ensure that the quality of batteries can meet international standards. Product coverage: pri

2020-11-16

The function of charging pile is similar to the refueling machine in the gas station. It can be fixed on the ground or wall and installed in public buildings (public buildings, shopping malls, public parking lots, etc.) and residential parking lots or charging stations. It can charge various types of electric vehicles according to different voltage levels. The input end of the charging pile is directly connected to the AC power grid, and the output end is equipped with a charging plug for charging ev. Charging pile generally provide conventional charging and fast charging two kinds of charging ways, people can use certain recharge CARDS in charging pile to provide credit card using the human-computer interaction interface, accordingly the charging ways, charging time and cost of operation, such as variable data printing, charging pile screen can show charging quantity, cost, such as charging time data. Classification:

2020-11-16

The Energy Star logo is a government program jointly promoted by the US Environmental Protection Agency (EPA) and the US Department of Energy (DOE) to better protect the living environment and save energy. Lighting products are also within the scope of Energy Star certification. Starting from January 1, 2011, all test reports and data applying for Energy Star must come from EPA-approved testing laboratories, and the products must undergo sampling tests after they are launched. Ensure that this product has continuous high energy efficiency. Knoll is an EPA-approved Energy Star testing laboratory. It introduces advanced measurement equipment that can fully meet the energy efficiency measurement requirements of US Energy Star computers, uninterruptible power supplies, chargers, audio and video equipment and set-top boxes. Testing standards: ◆Energy Star Requirements for STB Version 4.1 Version 5.1 7.6 ◆Energy Star Testing for STB

2020-11-16

As EMC requirements for new energy autos just begin for a short time, many enterprises lack of design experience for EMC, the market is more and more rigorous and Ministry of Industry, Information Technology of the People's Republic of China strong the spot test which made many autos is out of standards. NTC can provide engineering EMC service from designation to mass production. NTC can help customers to apply for CE、E-Mark (European union) 、Taiwan and domestic new energy vehicle certification and can provide testing and certification for components according to the Vehicle manufacturer.

2020-11-16

Description of service scope: 1. Ecological resource monitoring soil quality monitoring service; ecological monitoring 2. Environmental monitoring enterprise environmental monitoring; environmental quality monitoring and other third-party environmental monitoring services; environmental monitoring data platform development and information provision services; light pollution monitoring services; air Pollution monitoring service; urban air quality monitoring service; automobile exhaust monitoring service; coal-burning exhaust gas detection service; indoor decoration gas detection service; construction site dust monitoring service; supporting air pollution monitoring engineering; supporting air pollution control engineering; supporting advanced Industrial flue gas purification engineering; supporting volatile organic pollutant pollution control engineering; supporting motor vehicle pollution emission control engineering; industrial and mining enterprise gas monitoring services; coal mine

2020-11-21

Toys are a commodity that emphasizes safety. In order to protect the personal safety and health of consumers, especially children, governments around the world have always included toy safety under the strict supervision and control of the government.

2020-11-21

RoHS is the "Directive on Restricting the Use of Certain Hazardous Components in Electrical and Electronic Equipment", a mandatory directive established by EU legislation. The purpose of this standard is to eliminate certain hazardous substances in electrical and electronic products and make them more beneficial to the human body. Health and environmental protection.

2020-11-21

1. Glow wire test; 2. Horizontal burning test; 3. Vertical burning test; 4. Ball pressure test; 5. Needle flame test; 6. Leakage tracking test

2020-11-21

According to the "Administrative Measures on Energy Efficiency Labeling", all refrigerators, air conditioners, electric rice cookers, electric fans, household induction cookers, storage-type electric water heaters, washing machines and other products sold in the Chinese market must be affixed with the "China Energy Efficiency Label"

2020-11-21

The test items are: temperature and humidity aging test. Constant temperature and humidity test. High and low temperature alternating damp heat test...

2020-11-21

According to the test requirements for dust and water resistance of the product, according to the test specification IEC/EN 60529. IEC/EN 60529 means the degree of protection provided by the product enclosure

2020-11-16

As the energy source of many products, the power supply is an indispensable part, and many low-power power supplies are well known to everyone (such as adapters). However, high-power power supplies, including 100W to 100KW and above UPS, inverters, high-power emergency equipment, photovoltaic inverters, etc., are designed with a combination of multiple topologies, requiring test and certification engineers to have strong circuit understanding capabilities. In order to evaluate the safety and rationality of the product, and the impact of abnormal test current is large, if you do not understand the product, it will easily cause harm to the power grid, engineers, and the environment. Therefore, many third-party laboratories and institutions do not have the capacity and conditions to certify this part of the product. Our company has been engaged in certification services in this field for a long time, has accumulated rich experience, and configured corresponding equipment and testing envir

2020-11-24

The current "Health Standards for Drinking Water" (GB5749-2006) stipulates strict hygiene requirements for drinking water quality, namely: ①Good sensory properties: transparent, colorless, no peculiar smell and odor, and no visible objects; ② Epidemiologically safe: it does not contain pathogenic microorganisms and parasite eggs; ③The chemical composition is harmless to humans: the chemical substances contained in the water do not cause acute, chronic and long-term harm to the human body.

2020-11-24

Ground water refers to the water that occurs in the rock voids below the ground, and in a narrow sense refers to the water in the saturated aquifer below the ground water surface. In the national standard "Hydrogeology Terminology" (GB/T 14157-93), groundwater refers to various forms of gravity water buried below the surface. Foreign scholars believe that there are three definitions of groundwater: one refers to all the water buried in groundwater that is significantly different from surface water, especially the part of the water in the saturated zone in the aquifer; the other refers to downward flow or penetration to make soil and rocks It is saturated and replenishes the water of springs and wells; the third is the water stored in the rock cavities underground and in the voids that make up the crustal material. Groundwater is an important part of water resources. Because of its stable water volume and good water quality, it is one of the important water sources for agricultural irri

2020-11-24

Domestic sewage is the waste water discharged in the daily life of residents. It mainly comes from residential buildings and public buildings, such as houses, offices, schools, hospitals, shops, public places and industrial enterprises toilets. The pollutants contained in domestic sewage are mainly organic matter (such as protein, carbohydrate, fat, urea, ammonia nitrogen, etc.) and a large number of pathogenic microorganisms (such as parasite eggs and intestinal infectious virus, etc.). The organic matter in domestic sewage is extremely unstable and easily decomposes to produce foul smell. Bacteria and pathogens multiply by taking organic matter in domestic sewage as nutrients, which can lead to the spread of infectious diseases. Therefore, domestic sewage must be treated before it is discharged. In the process of sewage treatment, firstly it is necessary to detect and analyze the quality of sewage, mainly by detecting the data of SS, COD, BOD, etc. in the water.

2020-11-24

Industrial waste gas detection refers to the general term for the detection of various pollutant-containing gases discharged into the air during the fuel combustion and production processes in the factory area. Industrial waste gas detection includes organic waste gas detection and inorganic waste gas detection. Organic waste gas mainly includes various hydrocarbons, alcohols, aldehydes, acids, ketones and amines; inorganic waste gas mainly includes sulfur oxides, nitrogen oxides, carbon oxides, halogens and their compounds. Industrial waste gas has different treatment methods according to its exhaust air volume, temperature, concentration and its own chemical and physical properties. Industrial waste gas is an important source of air pollutants. A large amount of industrial waste gas is discharged into the atmosphere, which will inevitably reduce the quality of the atmospheric environment, bring serious harm to human health, and cause huge losses to the national economy. After harmful

2020-11-24

All sounds that hinder people's normal rest, study and work, as well as sounds that interfere with the sounds people want to hear, are all noise. In this sense, there are many sources of noise, such as the sound of cars on the street, the sound of talking in a quiet library, the sound of machinery on construction sites, and the excessively loud sound of neighboring TV sets. Noise is a kind of physical pollution. It refers to the unwanted and annoying sound of people. It is considered to be the third largest public hazard after air pollution and water pollution, and causes great harm to human health. Test items: 1. Environmental noise (regional environmental noise, road traffic noise) 2. Industrial enterprise plant boundary noise 3. Social life environmental noise 4. Construction site boundary noise 5. Workplace noise, vibration

2020-11-24

Working principle The liquid resistance detection method is to fill the oil and gas recovery pipeline with nitrogen at the specified nitrogen flow rate, and simulate the oil and gas passing through the oil and gas recovery pipeline. Use a pressure gauge or equivalent device to detect the liquid resistance of the gas passing through the pipeline to understand the degree of resistance to the gas caused by various reasons in the pipe to determine whether it affects the oil and gas recovery. The airtightness detection method uses nitrogen to pressurize the vapor recovery system to 500 Pa, allowing the system pressure to decay. The residual pressure value after 5 minutes of detection is compared with the minimum residual pressure limit specified in Table 2. If it is lower than the limit, it indicates that the leakage degree of the system exceeds the allowable range. The gas-liquid ratio detection method is to install a tight adapter at the nozzle of the fueling gun. The adapter is connected

2020-11-24

Bottom mud is usually a mixture of clay, silt, organic matter, and various minerals. It is formed by depositing at the bottom of the water body after a long time of physical, chemical, and biological action and water transmission. The sediment with a thickness of 0 to 15 cm on the surface is called surface sediment, and the sediment with a thickness of more than 15 cm is called deep sediment. Bottom mud is the sediment of rivers and lakes and an important part of natural waters. When the water area is polluted, part of the pollutants in the water can be stored in the bottom sludge through precipitation or particulate matter adsorption, and then released under appropriate conditions to become a source of secondary pollution. This type of pollution is called bottom sludge pollution. Test items: mercury, lead, cadmium, copper, zinc, chromium, nickel, arsenic and other heavy metals or inorganic non-metallic toxic substances, total nitrogen, total phosphorus, PH, moisture content, organic m

2020-11-16

Electromagnetic compatibility (EMC) is a comprehensive assessment of the interference intensity (EMI) and anti-interference ability (EMS) of electronic products in electromagnetic fields, and is one of the most important indicators of product quality. NTC currently has the latest and most complete international testing equipment and professional engineers to provide your products with a full range of services such as system integration, product testing, countermeasures, and certification. Common product certification items: U.S. FCC certification Canada IC certification China CCC certification S This PSE certification European CE certification Australia C-Tick, RCM certification South Korea KCC certification Taiwan BSMI certification Brazil INMETRO certification Europe/Global e/E-Mark certification EMC testing main items :

2020-11-24

Soil monitoring is basically the same as water quality and atmospheric monitoring. The various physical and chemical properties of the soil are measured by appropriate measurement methods, such as iron, manganese, total potassium, organic matter, total nitrogen, available phosphorus, total phosphorus, moisture, total arsenic, available boron, Fluoride, chloride, mineral oil and total salt content, etc., to achieve the purpose of monitoring the status of soil quality; monitoring of soil pollution accidents; dynamic monitoring of pollutant land treatment; soil background value investigation. my country's "Soil Environmental Quality Standard" stipulates that 11 items of heavy metals, pesticides and pH are monitored. The "Technical Specifications for Monitoring Farmland Soil Environmental Quality" divides soil monitoring projects into three categories: mandatory testing items, selection mandatory testing items, and selection items. Select required test items and selected test items include

2020-11-16

Electromagnetic compatibility (EMC) is a comprehensive assessment of the interference intensity (EMI) and anti-interference ability (EMS) of electronic products in electromagnetic fields, and is one of the most important indicators of product quality. NTC currently has the latest and most complete international testing equipment and professional engineers to provide your products with a full range of services such as system integration, product testing, countermeasures, and certification. Common product certification items: U.S. FCC certification Canada IC certification China CCC certification S This PSE certification European CE certification Australia C-Tick, RCM certification South Korea KCC certification Taiwan BSMI certification Brazil INMETRO certification Europe/Global e/E-Mark certification EMC testing main items :

2020-11-24

The "Law of the People's Republic of China on Soil Prevention and Control" was promulgated on August 31, 2018 and officially implemented on January 1, 2019. my country's soil prevention and control has ushered in a new situation, and local environmental protection regulatory agencies will continue to strengthen in accordance with the requirements of regulations Supervise soil pollution sources and establish a soil environmental monitoring system for enterprise land. Environmental investigations on soil sites have become a key task for soil prevention and control in various regions. Service Scope: Farmland soil environment inspection, soil environment inspection for construction projects, regional soil background value investigation, site investigation.

2020-11-16

Electromagnetic compatibility (EMC) is a comprehensive assessment of the interference intensity (EMI) and anti-interference ability (EMS) of electronic products in electromagnetic fields, and is one of the most important indicators of product quality. NTC currently has the latest and most complete international testing equipment and professional engineers to provide your products with a full range of services such as system integration, product testing, countermeasures, and certification. Common product certification items: U.S. FCC certification Canada IC certification China CCC certification S This PSE certification European CE certification Australia C-Tick, RCM certification South Korea KCC certification Taiwan BSMI certification Brazil INMETRO certification Europe/Global e/E-Mark certification EMC testing main items :

2020-11-24

Solid waste: refers to the solid and muddy waste discharged into the environment by people during development, construction, production and operation, and daily life activities. According to different classification standards: 1. Chemical properties: inorganic, organic 2. Shape: solid, muddy 3. Hazard: general, toxic (dangerous) 4. Source: industrial, mining, municipal waste, agricultural solid waste monitoring Solid waste monitoring It is the process of monitoring and measuring solid waste. Solid waste refers to solid and semi-solid wastes that pollute the environment generated in production, construction, daily life and other activities. Industrial solid waste refers to solid waste generated in production activities such as industry and transportation. Urban domestic waste refers to the solid waste generated in urban daily life or activities that provide services for urban daily life, as well as laws and administrative regulations.