Thailand || International Approvals

Technical information

  • Voltage and frequency:

220 V, 50 Hz

  • Plug:

A (Class II)

B (Class I)

C (Class II)

F (Class I)


Thai Industrial Standard Institute (TISI) is the national standard body of Thailand, established under the Ministry of Industry.


List of compulsory TISI standards and scope of products, which falls under mandatory standards, is published on TISI webpage. If a foreign manufacturer applies for the TISI certification, the information about local representative is needed.


Type of Approvals and Markings

Mandatory TISI certification mark


Voluntary TISI certification mark


SIQ Services

SIQ cooperates with TLAS accredited laboratories from Thailand and supports clients at obtaining required approvals.