Taiwan BSMI certification testing

Taiwan CNS / BSMI Certification Testing

Compatible Electronics holds NVLAP accreditation for CNS 13438 and CNS 15936 at all three California locations — the two key BSMI EMC standards. IEC safety standards accredited at Lake Forest/Silverado for the complete BSMI technical file covering EMC and safety in one lab.

NVLAP AccreditedFCC Listed LabCNS 13438 / CNS 15936 at All 3 LocationsIEC Safety Standards Accredited

What is BSMI?

BSMI is Taiwan’s regulatory authority for product certification under the Ministry of Economic Affairs. Products listed in the mandatory inspection category must obtain BSMI certification before import or sale in Taiwan. The certification covers EMC and, depending on product type, electrical safety. EMC testing uses CNS (Chinese National Standards) based on the CISPR international standard series.

Accredited CNS EMC Standards

CNS 13438

ITE Emissions (up to 6 GHz)

CNS 13438 (2006) up to 6 GHz — Limits and methods of measurement of radio interference characteristics of information technology equipment; based on CISPR 22
Accredited at Lake Forest/Silverado, Brea, and Newbury Park
Class A (commercial/industrial) and Class B (residential) limits
Radiated emissions 30 MHz to 6 GHz; conducted emissions 150 kHz to 30 MHz
Applies to computers, peripherals, networking equipment, and all information technology equipment

CNS 15936

Multimedia Equipment Emissions

CNS 15936 (2016) — Electromagnetic compatibility of multimedia equipment — emission requirements; based on CISPR 32
Accredited at Lake Forest/Silverado, Brea, and Newbury Park
Class A and Class B limits per CISPR 32 methodology
Applies to set-top boxes, smart TVs, media players, AV devices, and connected consumer electronics

CNS 13803

ISM Equipment (Combination Standard)

IEC/CISPR 11+A1(1997), EN 55011(1998), AS/NZS CISPR 11(2002), and CNS 13803(1997) — ISM equipment emissions
Accredited as a combination standard at Lake Forest/Silverado and Brea
Applies to industrial, scientific, and medical radio-frequency equipment

Safety Standards Used in BSMI Process

For products requiring combined EMC and safety certification under BSMI, Compatible Electronics performs safety testing to the underlying IEC standards referenced by BSMI CNS safety requirements. Taiwan BSMI safety standards (CNS 14336-1, CNS 3765, etc.) are based on IEC standards with Taiwan-specific deviations:

AV / ITE Safety

IEC 62368-1 (basis for CNS 14336-1)

IEC 62368-1 Ed. 3.0 (2018) — audio/video, information and communication technology equipment safety; accredited at Lake Forest/Silverado
EN IEC 62368-1:2020 / IEC 62368-1 Ed. 3.0+A1 — accredited at Lake Forest/Silverado

Appliance Safety

IEC 60335-1 (basis for CNS 3765)

IEC 60335-1 Ed. 6.0 (2020) — household and similar electrical appliances safety; accredited at Lake Forest/Silverado
EN 60335-1 (2012) and multiple amendments — accredited at Lake Forest/Silverado

Medical & Lab Safety

IEC 60601-1 & IEC 61010-1

IEC 60601-1 (2005)+A1(2012) — medical electrical equipment safety; accredited at Lake Forest/Silverado
IEC 61010-1 Ed. 3.1 b:2017 — measurement, control, and laboratory equipment safety; accredited at Lake Forest/Silverado

Legacy ITE Safety

EN 60950-1 / IEC 60950-1

EN 60950-1 (2006) + multiple amendments — legacy ITE safety (basis for CNS 60950-1); accredited at Lake Forest/Silverado
AS/NZS 60950.1 (2015) — accredited at Lake Forest/Silverado

BSMI Certification Modes

Mode selection is determined by BSMI based on product category and risk level. Compatible Electronics provides the accredited test reports required for all BSMI certification mode applications.

Mode I

Type Approval + Batch Inspection

Product batches inspected before each import shipment
Most common for higher-risk product categories
Accredited test reports required for type approval application

Mode II

Type Approval + Monitoring

Periodic factory monitoring after initial type approval
Suitable for established manufacturers with consistent production quality

Mode III / DoC

Factory Audit / Self-Declaration

Mode III: factory quality system audit; suitable for well-documented production
Declaration of Conformity (DoC): self-declaration for lower-risk products in specified categories
Compatible Electronics accredited test reports support all certification modes

Real-World Testing Examples

4K Streaming Media Player — CNS 15936 + Multi-Market

A consumer electronics manufacturer required BSMI certification for a 4K streaming media player for the Taiwan retail market. Compatible Electronics performed CNS 15936 (2016) radiated and conducted emissions testing at Brea, confirming Class B limits. Pre-compliance testing identified a 216 MHz radiated emission peak from the video processor clock harmonic, which was resolved with a common-mode ferrite on the HDMI cable before formal testing. The CNS 15936 test report was submitted to the BSMI-authorized certification body. Parallel FCC Part 15B (ANSI C63.4), EN 55032 (CE marking), and AS/NZS CISPR 32 (Australia RCM) testing was completed in the same session, delivering four market test reports from one lab visit.

Enterprise Network Switch — CNS 13438 Class A

A networking manufacturer needed BSMI certification for a managed data center switch sold to Taiwan enterprise customers. Compatible Electronics performed CNS 13438 (2006) radiated emissions from 30 MHz to 6 GHz and conducted emissions from 150 kHz to 30 MHz at Lake Forest/Silverado, confirming Class A limits across all port utilization configurations. The extended frequency range to 6 GHz required by CNS 13438 was measured with the device’s high-speed SerDes interfaces active. The accredited test report supported the BSMI Mode II type approval application alongside the IEC 62368-1 safety test report.

Smart LED Driver — CNS 13438 + CNS 15936 + IEC 62368-1

A lighting manufacturer needed BSMI compliance for a smart LED driver with integrated wireless control circuitry. The driver’s digital control board required CNS 13438 ITE emissions testing, and the multimedia output functions required CNS 15936 testing. Compatible Electronics performed both CNS standards from a single emissions measurement session at Newbury Park, covering radiated and conducted emissions for both standards simultaneously. IEC 62368-1 safety testing at Lake Forest/Silverado completed the BSMI technical file. The combined EMC and safety package supported the BSMI DoC application for the Taiwan market.