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Overview
Centre Testing International Group Co., Ltd. (NG28) is a market leader in testing, inspection, certification, calibration, audit, training & technical services; building trust between governments, enterprises, and consumers.
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SustainabilitySustainability is deeply rooted in NG28’s business model, by delivering science-based solutions and verification services, to increase transparency and traceability throughout the global value chain. NG28 is a proponent of carbon neutrality and sustainable development.
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Our serviceCentre Testing International Co., Ltd. (NG28) is the pioneer and leader in the TIC Industry which provides one-stop solutions on testing, inspection, certification, calibration, audit, training & technical services.
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By Industry
Our service capabilties cover the upstream and downstream of the supply chain including textile and apparel,toys,electronic appliances,medical health,food...andother industries.
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Environment
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Raw Material & Fuel Chemicals
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Textiles, Apparel, Footwear & Accessories
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Food & Agricultural Products
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Cosmetics, Personal Care & Household Chemicals
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Building Materials&Construction Engineering
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Electronic & Electrical Appliances
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Toys, Furniture & Home Decoration
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Industrial Equipment & Manufacturing
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Rail & Aviation
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Automotive & Spare Parts
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Pharma and Medical Services
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Maritime Vessel Compliance Testing
By IndustryOur service capabilties cover the upstream and downstream of the supply chain including textile and apparel,toys,electronic appliances,medical health,food...andother industries.
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SpecialtyComprehensively guarantee quality and safety, promote compliance and innovation, demonstrate brand competitiveness, and achieve higher quality, healthier, safer, and greener sustainable development.
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ManagementWe have established a clear governance structure in accordance with listing requirements and national regulations and policies to deal with internal and external challenges and achieve sustainable development.
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Information DisclosureWe are committed to establishing normal and effective two-way communication with shareholders and investors. We have established a complete information disclosure mechanism to convey information to shareholders in a timely manner.
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Talents PolicyEnsuring the basic rights and benefits of employees;
Providing professional skills training to promote employees’ growth;
Carrying out various kinds of activities to balance employees’ work and life.
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RecruitmentWelcome to join NG28 family! We are providing a platform for you to show your talents and achieve your career aspiration.
QUALITY & VALUE
With the rapid development of my country's power system and the continuous improvement of power equipment technology, the improvement of power quality and safety factor of the power grid are particularly important. NG28 provides metering calibration services for various high and low voltage measuring equipment, protection devices and other measuring instruments used in power systems to provide technical support for ensuring the safety of the power grid and improving the power quality of the power grid.
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? Service Background
With the continuous development and progress of science and technology, my country's power system is developing rapidly, the power supply structure is continuously adjusted, the power grid construction is continuously strengthened, and the power equipment technology is continuously improved. In the development process of the power system, the continuous development and progress of power system metering technology provides a technical guarantee for the power system to improve the power quality and improve the safety factor. All kinds of high and low voltage measuring equipment, protection devices and other measuring instruments used in power systems need to be measured to ensure that they meet the requirements of relevant technical indicators.
? Service Content
Ⅰ. Service Items
1. Electric Power Devices Calibration
2. Electric Safety Tools and Devices Test
3. Construction Tools and Devices Test
4. Material inspection
5. Preventive Test
Ⅱ. Testing Code
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NO. |
Item |
Testing Code |
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1 |
Electric Power Devices Calibration |
JJF1284-2011 Calibration specification of Calibrators for Electrical Meters JJG445-1986 DC standard voltage source JJG410-1994 Verification Regulation of Precision AC Voltage Calibration Source JJG780-1992Verification for AC Digital power meter JJF1205-2008 Calibration specification for Harmonic and Flicker Analyzers System JJF1472-2014 Calibration specification for Process calibrator JJF 1587-2016 Calibration specification for Multimeters JJG1491-2014 Calibration Specification for Digital AC Electrical Parameters Meter JJG 124-2005 Verification Regulation of Ammeters, Voltmeters, Watt meters and Ohmmeters JJG 843-2007 Verification Regulation Leakage current tester JJF1462-2014 Calibration Specification for DC Electronic Load JJG1005-2005 Verification Regulation of Electronic Insulation Resistance Meters JJF 1075-2015Calibration Specification for Clamp Ammeter JJG166-1993 Verification Regulation of DC Resistor JJG1072-2011 Verification Regulation of High Voltage and Value DC Resistors JJG1054-2009Verification Regulation of Clamp Earth Resistance Meter JJG1052-2009 Verification Regulation of Loop resistance tester and DC Resistance Meter JJG690-2003 Verification Regulation of High Insulation Resistance Meter JJG622-1997 Verification regulation of Meg ohmmeter JJG366-2004 Verification Regulation of Earth Resistance Meters JJG837-2003 Verification Regulation of DC Low Resistance Meters JJG984-2004 Verification Regulation of Earth Continuity Testers |
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2 |
Electric Safety Tools and Devices Test
Construction Tools and Devices Test
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DL408-1991 Safety work regulations of electric power industry DL/T 976-2005 Preventive test code of tools, devices and equipment for Live working WLD200601-2006 Preventive test procedure for electrical safety apparatus GB 26860-2011 Code of work for safety of electric power plant and substation DL/T 976-2005 Preventive test code of tools, devices and equipment for Live working GB 2811-2007 safety helmet GB/T 2812-2006 Test method for safety helmet DL/T 853-2004 Matting of insulating material for electrical purposes GB 50169-2006 Code for construction and acceptance of grounding connection electric equipment installation engineering GB/T12325-2008 Power quality -Deviation of supply voltage GB/T156-2007Standard voltage GB/T12326-2008 Power quality -Voltage fluctuation and flicker GB/T14549-1993Qualityof electric energy supply Harmonicsin public supply network GB/T15543-2008 Power quality -Three phase voltage unbalance GB/T18481-2001Power quality-Temporary and transient overvoltages GB/T 15945-2008 Power quality- Frequency deviation for power system GB/T 19862-2005General requirements for monitoring equipment of power quality DLT1028-2006Verification code for power quality analyzer |
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3 |
Material inspection |
Enterprise Standard |
Ⅲ. Detection limit and test method
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Field |
limit |
Best Accuracy |
test method |
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High voltage |
300kV |
0.05% |
On Site, Lab |
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High Current |
2000A |
0.02% |
On Site, Lab |
? Our Strengths
1. With CNAS, CMA professional qualifications and an experienced team of technical experts to provide you with professional consulting and services;
2. Have advanced testing equipment to ensure the accuracy and reliability of test data;
3. As a third-party testing and certification organization trusted by global customers, we provide quality assurance;
4. We rely on our global laboratory network to provide you with a comprehensive one-stop testing and certification solution.
? Service Process
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Calibration of Length Measuring InstrumentsLength measurement is mainly responsible for the value transfer of geometric quantities, including: measurement calibration in theMore -
Calibration Of Chemical Measuring InstrumentsPhysical and chemical metrology mainly carries out chromatography, mass spectrometry, spectroscopy, electrochemistry, thermochemisMore -
Calibration of Mechanical Measuring InstrumentsMechanics measurement mainly develops quality, weighing instruments, force measurement, torque, hardness, pressure, vacuum, flow,More -
Calibration of Thermal Measuring InstrumentsThermal measurement is mainly responsible for the calibration of temperature, humidity, thermal radiation and other measuring instMore -
Calibration of Electromagnetic Measuring InstrumentsElectromagnetic measurement is mainly responsible for the transmission of electromagnetic parameters of DC and AC below 1MHz.More -
Calibration of Radio Measuring InstrumentsRadio measurement is mainly responsible for the transfer of values in the fields of radio frequency communication, time frequency,More -
Calibration of Optical Measuring InstrumentsOptical metrology is mainly responsible for the calibration of chromaticity, luminosity, spectrum, ultraviolet radiation, and optoMore -
Metrology & CalibrationNG28 provides measurement calibration services related to measurement audits. Measurement audit: A participant performs an actual tMore -
Metrology and Calibration for the Pharmaceutical IndustryNG28 provides measurement and calibration services in the pharmaceutical industry related to instrument measurement. Huace measurem...More -
High-End Precision Manufacturing Measurement CalibrationNG28 provides high-end precision manufacturing measurement calibration services related to instrument measurement. NG28 Metrology caMore -
Communication Industry Measurement CalibrationNG28 provides measurement calibration services for the communication industry related to instrument measurement. NG28 has been commiMore
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