Country/region
Accredited agency
Norway
NEMKO
The People's Republic of China
CCC
Saudi Arabia
SASO
Singapore
PSB
South Africa
SABS
South Korea
KTL
Sweden
SEMKO
Switzerland
SEV
Taiwan
BSMI
Thailand
TISI
The United Kingdom
ASTA
The United States
UL
28
Chapter 8 Power adapter requirements