T/DZJN 001-2018 General Rules for Carbon Footprint Evaluation of Electrical and Electronic Products

Scope

Main Technical Content: Product Carbon Footprint Calculation 5.1 Functional Unit A functional unit is defined as a single electrical or electronic product with detailed indicators (such as name, size, weight, etc.) (i.e., the sales unit, excluding the included accessories). The product carbon footprint evaluation report should record the quantified results of the product carbon footprint in terms of the carbon dioxide equivalent per functional unit. 5.2 System Boundary 5.2.1 Principles The system boundary determines the unit processes covered in the product carbon footprint evaluation. The unit processes to be included in the product carbon footprint evaluation and the level of detail required for their evaluation should be determined. It is permissible to disregard certain life cycle stages or unit processes without significantly altering the overall conclusions of the product carbon footprint evaluation. However, the specific circumstances of the omissions should be clearly explained, along with the reasons for and impacts of these omissions. 5.2.2 System Boundary Setting The system boundary setting may vary depending on the difficulty of data acquisition and emission characteristics of the product. It includes the following five forms: a) Product carbon footprint evaluation covering the entire life cycle stage (from cradle to grave); b) Product carbon footprint evaluation from raw material acquisition to product leaving the production organization (from cradle to gate); c) Product carbon footprint evaluation from the production stage to the use stage; d) Product carbon footprint evaluation of the production stage; e) Product carbon footprint evaluation of the use stage. 5.3 Data 5.3.1 Data Collection Collect qualitative and quantitative data for all unit processes within the system boundary. Data collected through measurement, calculation, or estimation can be used to quantify the inputs and outputs of unit processes. Data types prim

Development Information

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