GB/T 41638.2-2023 Plastics—Carbon and environmental footprint of biobased plastics—Part 2:Material carbon footprint—Amount (mass) of CO2 removed from the air and incorporated into polymer molecule (English Version)
Plastics—Carbon and environmental footprint of biobased plastics—Part 2:Material carbon footprint—Amount (mass) of CO2 removed from the air and incorporated into polymer molecule
GB/T 41638.2-2023 Plastics - Carbon and environmental footprint of biobased plastics - Part 2:Material carbon footprint - Amount (mass) of CO2 removed from the air and incorporated into polymer molecule
1 Scope
This document defines the material carbon footprint as the amount (mass) of CO2 removed from the air and incorporated into plastic, and specifies a determination method to quantify it.
This document is applicable to plastic products, plastic materials and polymer resins that are partly or wholly based on biobased constituents.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content constitutes requirements 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.
ISO 472 Plastics - Vocabulary
ISO 16620-1 Plastics - Biobased content - Part 1: General principles
ISO 16620-2:2019 Plastics - Biobased content - Part 2: Determination of biobased carbon content
ISO 16620-3:2015 Plastics - Biobased content - Part 3: Determination of biobased synthetic polymer content
ISO 16620-4 Plastics - Biobased content - Part 4: Determination of biobased mass content
ISO 16620-5 Plastics - Biobased content - Part 5: Declaration of biobased carbon content, biobased synthetic polymer content and biobased mass content
3 Terms, definitions, symbols and abbreviated terms
3.1 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 472, ISO 16620-1, ISO 16620-2, ISO 16620-3, ISO 16620-4 and ISO 16620-5 apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
——ISO Online browsing platform: available at https://www.iso.org/obp
——IEC Electropedia: available at http://www.electropedia.org/
3.2 Symbols
mBSP——biobased synthetic polymer content, expressed as a percentage of the total mass
mc ——fraction of carbon present in a product, in %
MB——biobased carbon content on a mass base (kg) per 1 kg of polymer
MCO2——amount (mass) of CO 2 removed from the air and incorporated into 1 kg of the polymer
3.3 Abbreviated terms
TC total carbon
TOC total organic carbon
4 Application
Material carbon footprint shall not be used for a communication on overall environmental superiority because the material carbon footprint covers only a single impact category.
Standard
GB/T 41638.2-2023 Plastics—Carbon and environmental footprint of biobased plastics—Part 2:Material carbon footprint—Amount (mass) of CO2 removed from the air and incorporated into polymer molecule (English Version)
Standard No.
GB/T 41638.2-2023
Status
valid
Language
English
File Format
PDF
Word Count
7500 words
Price(USD)
225.0
Implemented on
2023-12-1
Delivery
via email in 1~3 business day
Detail of GB/T 41638.2-2023
Standard No.
GB/T 41638.2-2023
English Name
Plastics—Carbon and environmental footprint of biobased plastics—Part 2:Material carbon footprint—Amount (mass) of CO2 removed from the air and incorporated into polymer molecule
GB/T 41638.2-2023 Plastics - Carbon and environmental footprint of biobased plastics - Part 2:Material carbon footprint - Amount (mass) of CO2 removed from the air and incorporated into polymer molecule
1 Scope
This document defines the material carbon footprint as the amount (mass) of CO2 removed from the air and incorporated into plastic, and specifies a determination method to quantify it.
This document is applicable to plastic products, plastic materials and polymer resins that are partly or wholly based on biobased constituents.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content constitutes requirements 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.
ISO 472 Plastics - Vocabulary
ISO 16620-1 Plastics - Biobased content - Part 1: General principles
ISO 16620-2:2019 Plastics - Biobased content - Part 2: Determination of biobased carbon content
ISO 16620-3:2015 Plastics - Biobased content - Part 3: Determination of biobased synthetic polymer content
ISO 16620-4 Plastics - Biobased content - Part 4: Determination of biobased mass content
ISO 16620-5 Plastics - Biobased content - Part 5: Declaration of biobased carbon content, biobased synthetic polymer content and biobased mass content
3 Terms, definitions, symbols and abbreviated terms
3.1 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 472, ISO 16620-1, ISO 16620-2, ISO 16620-3, ISO 16620-4 and ISO 16620-5 apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
——ISO Online browsing platform: available at https://www.iso.org/obp
——IEC Electropedia: available at http://www.electropedia.org/
3.2 Symbols
mBSP——biobased synthetic polymer content, expressed as a percentage of the total mass
mc ——fraction of carbon present in a product, in %
MB——biobased carbon content on a mass base (kg) per 1 kg of polymer
MCO2——amount (mass) of CO 2 removed from the air and incorporated into 1 kg of the polymer
3.3 Abbreviated terms
TC total carbon
TOC total organic carbon
4 Application
Material carbon footprint shall not be used for a communication on overall environmental superiority because the material carbon footprint covers only a single impact category.
