GB/T 16288-2024 Marking of plastics products
1 Scope
This document specifies the requirements for marking of plastics products, including their dimensions, color, quantity, and placement.
This document is not applicable to provisions related to marking treatment methods or processes.
Note: This document is intended to facilitate the identification of various plastics products for subsequent disposal and recycling.
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 1844 (All parts) Plastics—Symbols and abbreviated terms [ISO 1043 (all parts)]
Note: GB/T 1844.1—2022 Plastics—Symbols and abbreviated terms—Part 1: Basic polymers and their special characteristics (ISO 1043-1:2011, MOD)
GB/T 1844.2—2022 Plastics—Symbols and abbreviated terms—Part 2: Fillers and reinforcing materials (ISO 1043-2:2011, IDT)
GB/T 1844.3—2022 Plastics—Symbols and abbreviated terms—Part 3: Plasticizers (ISO 1043-3:2016, MOD)
GB/T 1844.4—2008 Plastics—Symbols and abbreviated terms—Part 4: Flame retardants (ISO 1043-4:1998, IDT)
GB/T 2035 Terms and definitions for plastics (GB/T 2035—2008, ISO 472:1999, IDT)
GB/T 16903 Rules for the presentation of graphical symbols for use on signs—Design principles and requirements for public information graphical symbols (GB/T 16903—2021, ISO 22727:2007, NEQ)
3 Terms and definitions
For the purposes of this document, the terms and definitions given in GB/T 2035 and the following apply.
3.1
reworked plastics
thermoplastic prepared from trimmings or rejected mouldings that has been reprocessed in a fabricator's plant after having been processed previously in that plant by moulding, extrusion, etc.
Note: In many specifications the use of reworked material is limited to clean plastic that meets the requirements specified for the virgin material and yields a product essentially equal in quality to one made from only virgin material.
3.2
recycled plastics
thermoplastic plastics products prepared by recycling discarded plastics products.
Note: Recycled plastics may or may not be reformulated by the addition of fillers, plasticizers, stabilizers, pigments, etc.
3.3
repeatable used plastics
plastics products that can be reused multiple times after molding and whose performance meets the requirements of relevant provisions
3.4
recyclable plastics
plastics products that can be recycled and reused after being discarded
3.5
nonrecoverable plastics
plastic products that are allowed to be recycled or reused by law
3.6
food contact plastics
plastics products that, under normal conditions of use, are in contact or expected to come into contact with food or food additives (hereinafter referred to as food), or whose components may migrate into food
Note: The term includes plastic packaging materials, containers, tools and equipment used for food during its production, processing, packaging, transport, storage, sale, and use, as well as food utensils, containers, production pipelines, conveyor belts, packaging materials, etc.
3.7
medical plastics
plastics products intended for use in vitro medical applications or implanted in the body
4 Symbols and abbreviated terms
The symbols and abbreviated terms used in this document shall comply with the provisions of GB/T 1844 (all parts). For symbols or abbreviated terms not included herein, those specified in other national or international standards may be used. According to the requirements on polymer marking “REC” specified in GB/T 1844.1, when a product containing two or more components is regarded as a single recyclate, similar requirements shall apply to that product.
Contents
2 Normative references
3 Terms and definitions
4 Symbols and abbreviated terms
5 Marking of plastics products
Annex A (Informative) Technical differences between this document and ISO 11469: 2016 and their justifications
Annex B (Normative) List of material terms, their abbreviations and codes
