T/CNFPIA 4016-2024 Active

Scope: This document specifies the requirements for the carbon footprint evaluation and carbon labeling of wooden door and window products, including terms and definitions, carbon footprint calculation of wooden door and window products, carbon footprint evaluation of wooden door and window products, issuance of carbon labels, use and supervision, and appendices. This document is applicable to the carbon footprint evaluation and carbon labeling of wooden door and window products during the production process; Main technical content: 4. Wooden door and window product carbon footprint calculation 4.1 Purpose: To quantify the greenhouse gas emissions and removals during the production process of wooden door and window products, and provide consumers and other relevant parties with information on the carbon footprint of wooden door and window products. 4.2 Functional unit: The production of one wooden door (window) and its quality specification. 4.3 System boundaries: The system boundaries defined in this document for the carbon footprint evaluation of wooden door and window products are the production stage from "gate to gate", that is, from the entry of raw and auxiliary materials into the wooden door and window production enterprise to the exit of the product from the enterprise (Figure 1). Figure 1: Schematic diagram of the system boundaries for the carbon footprint evaluation of wooden door and window products. 4.4 Inventory analysis 4.4.1 Data collection: The scope of data collection should include every unit process within the system boundaries, with the specific steps as follows: a) Data collection: Data are collected according to the unit processes. b) Relation between data and functional units: The collected input and output data are converted into input and output data of functional units, that is, the input and output data of each unit process are divided by the output of wooden door and window products to obtain the energy consumption and environmental e