2012DB31/T 553-2012 Guidelines for Rational Energy Use in Buildings of Municipal Medical Institutions
2000DB31/T 227-1999 Method for calculating intergrating energy consumption of standard unit production of viscose fibre
1970DB31/T 553-1992 Calculation method for comparable comprehensive energy consumption of viscose fiber folded standard products
DB31/T 553-1992 Calculation method for comparable comprehensive energy consumption of viscose fiber folded standard products was changed to DB31/T 227-1999 Method for calculating intergrating energy consumption of standard unit production of viscose fibre.