T/GIEHA 012-2019
Indoor environmental ecological negative (oxygen) ion concentration level (English Version)

Standard No.

T/GIEHA 012-2019

Language

Chinese, Available in English version

Release Date

2019

Published By

Group Standards of the People's Republic of China

Latest

T/GIEHA 012-2019

Scope

This standard specifies the classification of indoor air negative (oxygen) ion concentration levels. This standard is applicable to the detection and evaluation of indoor air negative (oxygen) ion concentration.

T/GIEHA 012-2019 history

• 2019 T/GIEHA 012-2019 Indoor environmental ecological negative (oxygen) ion concentration level