GB/T 45441-2025 Greenhouse gases―Quantification methods and requirements of carbon footprint of products―Plastic products English, Anglais, Englisch, Inglés, えいご
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ICS 83.140
CCS G 31
National Standard of the People’s Republic of China
GB/T 45441-2025
Greenhouse gases - Quantification methods and requirements of carbon footprint of products - Plastic products
温室气体 产品碳足迹量化方法与要求 塑料制品
(English Translation)
Issue date: 2025-02-28 Implementation date: 2025-09-01
Issued by the State Administration for Market Regulation
the Standardization Administration of the People's Republic of China
Contents
Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Quantitative principles
5 Purpose and scope determination
6 Life cycle inventory analysis
7 Quantification of carbon footprint of plastic products
8 Interpretation of Life cycle results
9 Contents of carbon footprint report of plastic products
Annex A (Informative) GWP reference values
Annex B (Informative) Quantification of carbon footprint of plastic products (example)
Annex C (Information) Processing technology and greenhouse gas emissions of common plastic products
Annex D (Informative) Plastic products carbon footprint quantitative report template
Bibliography
Greenhouse gases - Quantification methods and requirements of carbon footprint of products - Plastic products
1 Scope
This document stipulates the principles, purpose and scope of quantifying the carbon footprint of plastic products, life cycle inventory analysis, interpretation of life cycle results and preparation of carbon footprint reports of plastic products.
This document is applicable to quantifying the carbon footprint of plastic products.
2 Normative references
The following documents contain provisions which, through reference in this text, constitute provisions of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document including any amendments applies.
GB/T 2035 Plastics - Vocabulary
GB/T 4754 Industrial classification for national economic activities
GB/T 16288 Marking of plastics products
GB/T 24044 Environmental management - Life cycle assessment - Requirements and guidelines
GB/T 2406 Greenhouse gases - Carbon footprint of products - Requirements and guidelines for quantification
3 Terms and definitions
For the purpose of this document, the terms and definitions given in GB/T 2035、GB/T 4754、GB/T 16288、GB/T 24044、GB/T 24067 apply.
3.1
plastic products
variety of products formed by processing with synthetic resins (macromolecular compounds) as the main raw materials through processes such as extrusion, injection molding, blow molding, calendering, lamination, rotational molding, foaming, casting, vacuum forming, and weaving
Note 1: See GB/T 16288 for the types of basic polymers (polymer compounds) of plastic products.
Note 2: Derived from the description of Class 292 in Table 1 of GB/T 4754-2017.
3.2
carbon footprint of plastic products life cycle
sum of greenhouse gas emissions throughout the life cycle of plastic products, expressed in carbon dioxide equivalent
3.3
partial carbon foot print of plastic products
sum of greenhouse gas emissions in one or more selected stages or processes within the life cycle of plastic products, expressed in carbon dioxide equivalent
3.4
quantification of the carbon footprint of plastic products
activity of determining the life cycle carbon footprint and partial carbon footprint of plastic products
3.5
life cycle inventory analysis; LC
phase of life cycle assessment involving the compilation and quantification of inputs and outputs throughout the entire life cycle of a product
3.6
network access time
phase of life cycle assessment aimed at understanding and evaluating the magnitude and significance of potential environmental impacts of a product system throughout the entire life cycle of the product
[Source: GB/T 24067-2024, 3.3.7]
3.7
life cycle interpretation
phase of life cycle assessment where the results of inventory analysis or impact assessment are evaluated in accordance with specified goals and scope to form conclusions and recommendations
[Source: GB/T 24067-2024, 3.3.7]
3.8
functional unit
reference unit used to quantify the function of a product system
[Source: GB/T 24067-2024, 3.3.7]
3.9
declared unit
reference unit used to quantify the partial carbon footprint of a product
Examples: mass (1 kg plastic film), volume (1 m3 foam board), length (1 m pipe), number (1 plastic lunch box).
[Source: GB/T 24067-2024, 3.3.8, modified]
3.10
system boundary
set of criteria used to confirm which unit processes are part of a product system
[Source: GB/T 24067-2024, 3.3.7]
3.11
unit process
most basic part identified for quantifying input and output data when conducting life cycle inventory analysis
[Source: GB/T 24044-2008, 3.34]
3.12
activity data
representative value of the volume of production or consumption activities that result in greenhouse gas emissions
Note: Such as consumption of various fossil fuels, usage of raw materials, purchased electricity, purchased heat, etc.
[Source: GB/T 32150-2015, 3.12]
3.13
primary data
quantified value of a process or activity obtained through direct measurement or calculation based on direct measurement
[Source: GB/T 24067-2024, 3.3.7]
3.14
secondary data
data that do not meet the primary data requirements
Note 1: Secondary data is credible data verified by authoritative organizations. It can come from databases, public literature, national emission factors, calculation and estimation data or other representative data. It is recommended to use localized databases.
Note 2: Secondary data may include data obtained from alternative processes or estimates.
[Source: GB/T 24067-2024, 3.3.7]
3.15
greenhouse gas; GHG
components that exist naturally in the atmosphere or are produced by human activities, which can absorb and emit radiation within the infrared spectrum generated by the Earth's surface, atmosphere, and clouds
Note: The greenhouse gases involved in this document mainly include carbon dioxide (CO2), methane (CH4) and nitrous oxide (N2O).
[Source: GB/T 24067-2024, 3.3.7]
