HJ

Sector Standard for Environmental Protection of the People’s Republic of China

                               HJ/T 351-2007

Technical Requirement for Environmental Labeling Products

Eco-Housing

Issued on July 23, 2007         Putting into effect as of November 1, 2007

Issued by State Environmental Protection Administration

Contents

Forward......................................................................................................................III

1 Application scope...............................................................................................................................1

2 Quoted standards.........................................................................................................................1

3 Glossary and definition........................................................................................................................2

4 Basic requirements ..................................................................................................................4

5 Technical contents ..........................................................................................................................8

6 Testing method .........................................................................................................................17

Annex A (regulatory Annex) Calculation of Energy Conversion Coefficient (ECC)......................................................................18

Annex B (regulatory Annex) Calculation of Transportation and Distribution Coefficient (TDC)...............................................................................21

Annex C (regulatory Annex) Calculating Method for Pollutants and Heat Removal of Buildings............................................................22

Annex D (regulatory Annex) Calculation of the Indicator of Heat Comfort-Predicted Mean Vote (PMV) ....................................................................24

Foreword

This standard is formulated for the purpose of implementing Law of the People’s Republic of China on Environmental Protection, ensuring energy and resource-saving in residential buildings (areas) and alleviating the environmental load, upgrading the overall construction level of eco-houses, and promoting the sustainable development of this industry.

Referring to the eco-technology assessment system in Technical Assessment Handbook for Ecological Residence of China (2003),Assessment System for Green Building of Beijing Olympic Games,and Evaluation System for Green Buildings (LEED-NC2.1) issuedby U.S Green Building Council, this standard has detailed requirements for residential buildings (areas) during their entire life circle in terms of the environmental planning of the construction site, energy saving and use, indoor environmental quality, water environment, and materials and resources.

This standard is released for the first time.

This standard is a guiding standard and applicable to the certification of eco-labeling products in China.

This standard is put forward by Department of Science, Technology and Standards of State Environmental Protection Administration.

This standard is drafted by the following organizations: Environmental Development Center of State Environmental Protection Administration, real estate department of All-China Federation of Industry and Commerce, School of Architecture of Tsinghua University, Beijing Tianhong Yuanfang Architecture Design Co,.Ltd., Institute of Building Physics of China Academy of Building Research, and College of Architecture and Engineering of Beijing University of Technology.

This standard is approved by State Environmental Protection Administration on July 23, 2007.

This standard shall go to effect as of November 1, 2007.

This standard shall be interpreted by State Environmental Protection Administration.

Technical Requirement for Environmental Labeling Products

Eco-Housing

1 Application scope

This standard has stipulations on the basic requirements, technical contents, and testing methods of eco-housing during two phases-the planning and design, and check and acceptance.

This standard shall apply to newly built and rebuilt residential buildings (areas) and be carried out in two phases, that is, the planning and design, and check and acceptance.

2 Quoted standards

This standard has quotations from the following standards. The latest versions of all quotation documents without any specific date are applicable to the current standard.

GB3095 Ambient Air Quality Standard

GB3096 Standard of Environmental Noise of Urban Area

GB3838 Environmental Quality Standards for Surface Water

GB5749 Standards for Drinking Water Quality

GB6566 Limit of Radionuclides in Building Materials

GB8702 Regulations for Electromagnetic Radiation Protection

GB8978 Integrated Wastewater Discharge Standard

GB9667 Hygienic Standard for Swimming Place

GB13271 Emission Standard of Air Pollutants for Coal-burning, Oil-burning Gas-fired Boiler

GB16297 Integrated Emission Standard of Air Pollutants

GB18483 Emission Standard of Cooking Fume (on trial)

GB18580 Indoor Decorating and Refurbishing Materials－Limit of Formal Dehyde Emission of Wood Based Panels and Finishing Products

GB18581 Indoor Decorating and Refurbishing Materials－Limit of Harmful Substances of Solvent Coatings for Woodenware

GB18582 Indoor Decorating and Refurbishing Materials－Limit of Harmful Substances of Interior Architectural Coatings

GB18583 Indoor Decorating and Refurbishing Materials－Limit of Harmful Substances of Adhesives.

GB18584 Indoor Decorating and Refurbishing Materials－Limit of Harmful Substances of Wood based Furniture

GB18585 Indoor Decorating and Refurbishing Materials－Limit of Harmful Substances of Wallpapers

GB18586 Indoor Decorating and Refurbishing Materials-Limit of Harmful Substances of Polyvinyl chloride Floor Coverings

GB18587 Indoor Decorating and Refurbishing Materials- Limit of Harmful Substances Emitted from Carpets, Carpet Cushions and Adhesives

GB18588 Limit of Ammonia Emitted from the Concrete Admixtures

GB/T18883 Indoor Air Quality Standard

GB18918 Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant

GB/T18920 The Reuse of Urban Recycling Water-Water Quality Standard for Urban Miscellaneous Water Consumption

GB/T18921 The Reuse of Urban Recycling Water —Water Quality Standard for Scenic Environment Use

GB50015 Code for Design of Building Water Supply and Drainage

GB50019 Design Code for Heating, Ventilation, and Air Conditioning

GB/T50033 Standard for Daylighting Design of Buildings

GB50034 Standard for Lighting Design of Buildings

GB50096 Design Code for Residential Buildings

GB50176 Thermal Design Code for Civil Building

GB50180 Code of Urban Residential Areas Planning & Design

GB50189 Design Standard for Energy Efficiency of Public Buildings

GB50325 Code for Indoor Environmental Pollution Control of Civil Building Engineering

GB50335 Code for Design of Wastewater Reclamation and Reuse

GB50368 Residential Building Code

GBJ14 Code for Design of Outdoor Sewerage Engineering

GBJ118 Code for Design of Sound Insulation of Civil Buildings

CJ94 Water Quality Standard for Fine Drinking Water

CJ164 Domestic Water Saving Devices

CJ/T206 Water Quality Standards for Urban Water Supply

JGJ26 Energy Conservation Design Standard for New Heating Residential Buildings

JGJ75 Energy Efficiency of Residential Buildings in Hot Summer and Warm Winter Zone

JGJ134 Design Standard for Energy Efficiency of Residential Buildings in Hot Summer and Cold Winter Zone

CECS57 Water Supply and Drainage Design Code for Residential Sub-District

CJJ83 Code for Vertical Planning on Urban Field

Measures on the Administration of Electromagnetic Radiation Environmental Protection (No.18 Order of SEPA)

Catalogue of the Guidelines on the Industrial Restructuring (No.40 Order of NDRC)

3 Glossary and definition

The following glossary and definition shall apply to this standard.

3.1 Eco-housing: residential buildings (areas) that fully reflect the concept of resource and energy saving, alleviate environmental load, provide sound and comfortable living environment and harmonize with the surrounding ecological environment during the whole life circle of the buildings.

3.2 Green area coverage: the proportion of the green area to the whole residential area.

3.3 Heat island magnitude: the temperature difference between somewhere in the city and the meteorological monitoring spot in the suburbs.

3.4 Wet-Bulb Globe Temperature (WBGT): heat stress index of the environment; composed of the dry bulb temperature (Ta), wet bulb temperature (Tw) under natural ventilation (without air supply), and black bulb temperature (Tg) as follows: WBGT = 0.7Tw+0.2Tg+0.1Ta.

3.5 Water efficiency: [(Total ration of consumed water-actual amount of consumed tap water)/total ration of consumed water]×100%. Among others, total ration of consumed water refers to the total water consumption estimated according to the rationing standard of the residential buildings (areas); actual amount of consumed water refers to the amount of water actually used by the building (area) after taking into account of the water efficiency plan.

3.6 Utilization rate of recycled water: (amount of consumed recycled water/total amount of sewage)×100%. Among others, amount of consumed recycled water refers to the amount of used water that is collected, treated and reused in the residential area, and the total amount of sewage water refers to the total amount of domestic sewage discharged by the residential area.

3.7 Renewable energy: solar energy, wind power, biomass, shallow geothermal energy, marine energy and the ensuing secondary energy.

3.8 Index of Cool Loss of Building: the cool needed by unit building area in unit time and provided by air-conditioning equipment, according to the design standards of indoor heat environment in summer and the presumed calculating conditions.

3.9 Index of Heat Loss of Building: the heat needed by unit building area in unit time and provided by heat supply equipment, according to the design standards of indoor heat environment in winter and the presumed calculating conditions.

3.10 Referential building: virtual building that has identical design (including the window-wall ratio) and size with the building under review and whose thermal dynamic parameters and window-wall ratio in the parts of enclosure structures meet the national and local energy-saving standards.

3.11 Energy Conversion Coefficient (ECC): the ratio of accumulated cool and heat provided by air-conditioning sources of the building under review in the whole year to the energy of consumed electricity, natural gas, coal, steam, and hot water.

 (Referring to Annex A for the calculation of ECC)

3.12 Transportation and Distribution Coefficient (TDC): the cool and heat transported and distributed by air-conditioning water and wind system per unit electricity consumed according to the form of the transportation and distributed system, the type of the fan and pump and the control strategies.

 (Referring to Annex B for the calculation of TDC)

3.13 Indicator of Heat Comfort-Predicted Mean Vote (PMV): indicator of the heat environment that reflects the departure of human body’s heat feelings from heat balance (Referring to Annex D for the calculation of PMV)

3.14 Non-tap water: water of various kinds that have water quality failing to meet Water Quality Standards for Urban Water Supply (CJ/T206-2005).

3.15 Eutrophication of water body: the phenomenon that under mankind’s influence, nitrogen and phosphor needed by living organisms entering in a large amount into slow-flow water bodies like lakes, river estuary and sea gulf, causing algae and other plankton to reproduce rapidly, the level of dissolved oxygen in the water to decrease and water quality to deteriorate.

4 Basic requirements

4.1 Eco-houses shall meet the following national or local laws, regulations, standards and codes during the planning and design, and check and acceptance phases.

4.2 Every household shall meet the basic requirements.

4.3 Construction units of the residential buildings (areas) must carry out the quality and environmental management systems and comply with relevant national or local laws, regulations, and standards in the construction activities.

5 Technical contents

5.1 Residential buildings (areas) shall meet the following requirements:

(1) Scores for five aspects, i.e., environmental planning of the construction sites, energy saving and use, indoor environmental quality, water environment of the area, and materials and resources shall be at least 60% of each available score.

(2) The total score in each of the planning and design, and check and acceptance phases shall be at least 70% of the available score in the phase.

5.2 Requirements for environmental planning of the site

5.2.1 Planning and design phase