CEL-012. Electric Storage Water Heaters
China
Storage Water Heaters
Mandatory
Comparative Label
Entered into force, Adopted
2009
May 2021
Electricity
CEL-021. Power Transformer
China
Power Transformers
Mandatory
Comparative Label
Entered into force, Adopted
2010
May 2021
Electricity
CEL-026. Domestic solar water heating system
China
Storage Water Heaters
Mandatory
Comparative Label
Entered into force, Adopted, Revised
2012
2012
August 2018
Solar
CEL-040. Groundwater Source Heat Pump Systems
China
Instantaneous Water Heaters, Storage Water Heaters
Mandatory
Comparative Label
Entered into force, Adopted, Revised
2008
2015
May 2021
Electricity
CQC31-439133-2013. CQC Mark Certification - Heat pump water heater
China
Storage Water Heaters
Voluntary
Endorsement Label
Entered into force, Adopted, Revised
2002
2014
June 2021
Electricity
CQC31-448173-2018. CQC Mark Certification Electric Storage Water Heaters
China
Storage Water Heaters
Voluntary
Endorsement Label
Entered into force, Adopted, Revised
2002
2018
May 2021
Electricity
CQC31-461212-2020. Energy Conservation Certification Rules for Power Transformer
China
Power Transformers
Voluntary
Endorsement Label
Entered into force, Adopted, Revised
2003
2020
May 2021
Electricity
CQC31-461219-2010. CQC Mark Certification - Power Transformer
China
Power Transformers
Voluntary
Endorsement Label
Entered into force, Adopted, Revised
2003
2010
August 2018
Electricity
CQC31-462271-2022 Energy Conservation Certification Rules for High-Voltage/Low-Voltage Prefabricated Substations
China
Power Transformers
Voluntary
Endorsement Label
Entered into force, Adopted
2022
October 2022
Electricity
CQC31-482652-2018 Energy Conservation Certification Rules for High/Low Temperature Test Chambers
China
Other
Voluntary
Endorsement Label
Entered into force, Adopted
2018
October 2022
Electricity
CQC31-482653-2018 Energy Conservation Certification Rules for Hot Aging Test Ovens
China
Other
Voluntary
Endorsement Label
Entered into force, Adopted
2018
October 2022
Electricity
CQC61-448261-2012. CQC Mark Certification - Domestic Solar Water Heating Systems
China
Storage Water Heaters
Voluntary
Endorsement Label
Entered into force, Adopted, Revised
2002
2012
June 2021
Electricity
GB 20052-2024 Energy efficiency limit values and energy efficiency grades for power transformers
China
Power Transformers
Mandatory
Minimum Performance Standard
Entered into force, Adopted, Revised
2006
2024
December 2024
Electricity
GB 21519-2008 Minimum Allowable Values of Energy Efficiency and Energy Efficiency Grades for Electrical Storage Water
China
Storage Water Heaters
Mandatory
Minimum Performance Standard
Entered into force, Adopted, Revised
2008
2011
June 2021
Electricity
GB 26969-2011 Minimum allowable values of energy efficiency and energy efficiency grades for domestic solar water heating systems
China
Storage Water Heaters
Mandatory
Minimum Performance Standard
Entered into force, Adopted, Revised
2012
2012
June 2021
Solar
GB 26969-2025 Minimum allowable values of energy efficiency and energy efficiency grades for domestic solar water heating systems
China
Storage Water Heaters
Mandatory
Minimum Performance Standard
Adopted, Revised
2011
2025
October 2025
Electricity
GB 28736-2019 Minimum allowable values of energy efficiency and energy efficiency grades for welding machines
China
Other
Mandatory
Minimum Performance Standard
Entered into force, Adopted
2020
May 2021
Electricity
GB 29541-2013 Minimum allowable values of the energy efficiency and energy efficiency grades for heat pump water heaters
China
Storage Water Heaters
Mandatory
Minimum Performance Standard
Entered into force, Adopted, Revised
2008
2013
June 2021
Electricity
GB 32311-2015 Minimum allowable values of energy efficiency and energy efficiency grades for hydrogen producing systems by water electrolysis
China
Other
Mandatory
Minimum Performance Standard
Entered into force, Adopted
2017
June 2021
Electricity