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.
Sustainability 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.
Centre 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.
Our service capabilties cover the upstream and downstream of the supply chain including textile and apparel,toys,electronic appliances,medical health,food...andother industries.
Our service capabilties cover the upstream and downstream of the supply chain including textile and apparel,toys,electronic appliances,medical health,food...andother industries.
Comprehensively guarantee quality and safety, promote compliance and innovation, demonstrate brand competitiveness, and achieve higher quality, healthier, safer, and greener sustainable development.
We 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.
Ensuring 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.
Polymer materials are widely used. We will use corresponding materials according to specific needs. The characterization of material performance is an indispensable means. NG28 provides comprehensive testing services with the help of professional testing instruments and experienced technical teams.
? Business Background
The polymer material has its unique structure, coupled with the characteristics of easy modification and easy processing, so that it has excellent performance that other materials can't compare and cannot be replaced, so it is widely used in various fields. Stable and reliable performance is the foundation to ensure the normal use of materials. Prediction and monitoring are routine methods. NG28 can provide comprehensive testing services.
? Service Content
1. Performance evaluation: we provide inspection reports for suppliers, manufacturers, and distributors to ensure that products meet relevant requirements.
2. Quality evaluation: we identify high-quality suppliers, stabilize product quality, and maintain brand interests.
3. Product optimization: NG28 helps products quickly enter the market, provide report support, and gain market recognition.
Ⅰ. Routine test items
Test items |
Testing method |
Ash content |
GB/T 9345.1,ISO 3451-1,ASTM D5630 |
Burning loss |
ASTM D2584 |
Glass fiber content |
GB/T 2577,ISO 1172 |
Resin content |
GB/T 2577 |
Carbon black content |
ASMT D1603,ISO 6964,ASTM D6370 |
Solvent soluble content |
ISO 6427,ISO 1407,GB/T 3516 |
Degree of cure |
GB/T 2576 |
Thermal decomposition temperature |
ASTM D3850 |
Thermal stability |
ASTM E2550,ISO 11358-1 |
Thermogravimetric analysis |
ASTM E1131,ASTM D6370,ISO 9924-1,ISO 9924-2, GB/T 14837.1 |
Glass transition temperature |
ISO 11357-2,GB/T 19466.2,ASTM D6604,ASTM E1356, ASTM D3418 |
Melting temperature |
ISO 11357-3,GB/T 19466.3,ASTM E794,ASTM D4591, ASTM D3418,GB/T 17931 |
Heat of crystallization (DSC method) Melting Enthalpy (DSC Method) |
ISO 11357-3,GB/T 19466.3,ASTM D3418,ASTM E793 |
Processing temperature |
ISO 18373-1 |
Crystallinity |
ASTM F2625 |
Ⅱ. Scope
Rubber, fibers, plastics, polymer adhesives, polymer coatings and polymer matrix composite materials, etc.
? Advantage
We focus on your needs and solve your problems purposefully and plannedly.
We have comprehensive testing capabilities and continue to develop new test items, able to provide customers with customized services.
We have a sound service network covering important central cities across the country, providing customers with convenient and effective services.
? Service Process