Shenzhen Tongzhou Testing Co., Ltd. (STT)
More labs in this area: EMC testing in China · EMC testing in Guangdong · EMC testing in Shenzhen
Shenzhen, Guangdong, China
+86-755-329021991st Floor, Building 1, Haomai High-tech Park, No. 387 Huating Road, Dalang Street, Longhua District, Shenzhen, Guangdong, 518109, China
About
Shenzhen Tongzhou Testing Co., Ltd. (STT), established in 2015, is an independent third-party comprehensive laboratory in the Haomai High-tech Park, Longhua District, Shenzhen, occupying roughly 2,000 m2. It integrates EMC, safety, RF and energy-efficiency testing and operates to the ISO/IEC 17025 management system. The lab holds accreditations from CNAS (China), CMA (China), the U.S. A2LA/FCC and Canada's ISED (IC), and supports over 70 certification schemes across 50+ countries, including CCC, SRRC, NCC, CE, FCC, MIC, CB, MET and E-Mark. Its full commercial EMC suite covers conducted and radiated emission, harmonic current, voltage fluctuation and flicker, and the immunity family (ESD, radiated RF field, EFT/burst, surge, conducted RF and voltage dips/short interruptions). Typical product categories are household appliances, IT, telecommunications equipment, illumination fixtures, stage lighting and equipment, toys and short-range wireless devices. Note: STT publishes the EMC test items but not the standard numbers; the standards below are the governing IEC/EN standards for each itemised test.
Accreditations
| Accreditation |
|---|
| ISO/IEC 17025 |
| A2LA |
| FCC Listed |
| ISED (Canada) |
Testing Services
| Test Type | Applicable Standards |
|---|---|
| Radiated Emissions | CISPR 32, EN 55032, CISPR 11, FCC Part 15B |
| Conducted Emissions | CISPR 32, EN 55032, CISPR 11, FCC Part 15B |
| Radiated Immunity | IEC 61000-4-3 |
| Conducted Immunity | IEC 61000-4-6 |
| ESD | IEC 61000-4-2 |
| EFT/Burst | IEC 61000-4-4 |
| Surge Immunity | IEC 61000-4-5 |
| Harmonics & Flicker | IEC 61000-3-2, IEC 61000-3-3 |
| Voltage Dips/Interrupts | IEC 61000-4-11 |
| Product Safety | IEC 62368-1, IEC 60335-1 |
| Radio Equipment Testing | EN 300 328, EN 301 489 |
Certifications / Marks
| Certification |
|---|
| CE |
| FCC |
| CCC |
| SRRC |
| NCC |
| MIC |
| CB |
| MET |
| E-Mark |
Industries Served
| Industry |
|---|
| Household Appliances |
| Information Technology |
| Telecommunications |
| Lighting Products |
| Radio & Wireless |
| Consumer Electronics |
