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.
According to customer needs, to achieve qualitative/quantitative analysis of sample components. Metal material analysis through a variety of equipment and methods to analyze the sample composition, proportion, combined with product application and technical engineer's industry experience, to provide customers with more ideas for material performance improvement, product research and development.
? Service Background
1. Not sure the material grade of the sample;
2. Want to know the cause of the performance of metal materials;
3. To develop better production processes;
4. Analyze the cause of failure sample.
? Service Content
1. Test Methods and Standards
Spark direct Reading Spectrum (OES) |
GB/T 11170, ASTM E1086 (stainless steel), GB/T 4336, ASTM E415 (carbon steel and low alloy Steel), GB/T 24234 (white cast iron), JIS G1253 (basically covering all types of steel), ASTM E1999 (cast iron), YS/T 482 (copper alloy), GB/T 7999, ASTM E1251, JIS H1305 (aluminum and aluminum alloy), DIN EN 12019 (Zinc alloy), JIS H1322, GB/T 13748.21 (magnesium alloy) |
Inductively coupled plasma emission spectroscopy (ICP-OES) |
GB/T 20125 (Carbon steel and low alloy steel), SN/T 2718 (stainless steel), GB/T 20975.25 (aluminum and aluminum alloy), GB/T 5121.27, YS/T 586 (copper alloy), GB/T 12689.12 (zinc alloy), GB/T 13748.20 (magnesium alloy), GB/T 10574.13 (solder), HB 7716.13 (titanium alloy), GB/T 8647.9, GB/T 14265 (Nickel alloy), |
Carbon-sulfur analyzer |
GB/T 14265, GB/T 20123, GB/T 5121.4, ASTM E1019, JIS G1211, ISO 15350 |
Nitrogen oxygen hydrogen analyzer |
GB/T 5121.8 (pure copper), GB/T 11261, GB/T 14265, ASTM E1019, JIS Z2613, ASTM E1409 (Titanium alloy), GB/T 20124, JIS G1228, GB/T 223.82, JIS Z2614 |
Hand-held X Fluorescence Spectrometer (XRF) |
GB/T 16597-2019 |
Wet method (gravimetric method/titration method/colorimetric method/spectrophotometry, etc.) |
GB/T 5121.1-2008 Electrolytic Cu YS/T 910-2013 (Titration method) Electrolytic Cu GB/T 10574.1-2003 Lead solder titrating Sn |
Energy spectrum Analysis (EDS) |
GB/T 17359-2012, ASTM E1508-98(2012) |
2. Adaptive Range of Product
It is suitable for metal materials and their products (including black metal: carbon steel, stainless steel, heat-resistant steel, alloy steel, cast iron, etc.; non-ferrous metal: aluminum and aluminum alloy, copper and copper alloy, nickel base alloy, solder, rare metal, rare earth metal, etc.; high-purity metal: pure iron, pure aluminum, pure magnesium, pure zinc, pure tin, pure copper, etc.; special metal materials: functional alloy, metal matrix composite material, etc.; other metal products: profile, plate, wire, pipe, fastener, auto parts, etc.).
3. Routine Sample Requirements
OES |
Plate/block (length x width x thickness) : minimum size: 15mm x 15mm x 2mm Bar: minimum diameter 15mm. Pipe: The minimum wall thickness T is 2mm. Note: 1. Rods and tubes may be suitably flattened to form a plane on one side. 2. Try to provide material brand or specification value in element analysis. |
ICP-OES |
The sample size is 20g (precious metal minimum 2g), less than this sample size needs to be confirmed with the laboratory Note: When analyzing elements, try to provide the material brand or specification value. |
XRF |
A compact flat sample with a diameter of at least 15mm and a powder sample of at least 0.1g shall be provided |
EDS |
Solid samples of non-aqueous or non-aqueous and volatile substances; Non-magnetic sample powder sample subject to engineer's confirmation; Size: Max. 4*4*3.5cm. |
C/S |
10g |
O/N/H |
Clumps of rods greater than 5mm; other specimens need to be communicated to the laboratory |
4. Our Advantages
1. We have rich material analysis laboratory experience;
2. NG28 has a professional team of testing technical engineers;
3. Our laboratories have a complete analysis equipment and analysis process.