Tianjin Provincial Standard of the People's Republic of China
Latest
DB12/T 667-2016
Scope
This standard applies to the cleaning services provided by home cleaning service agencies (hereinafter referred to as service agencies), and other housekeeping and cleaning service behaviors can also be implemented with reference.
DB12/T 667-2016 history
2016DB12/T 667-2016 Household cleaning service quality specification