GB/T 3939.2-2023
Nomenclature and signs of main fishing gear material—Part 2: Netting (English Version)
- Standard No.
- GB/T 3939.2-2023
- Language
- Chinese, Available in English version
- Release Date
- 2023
- Published By
- General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China CN / GB
- Latest
- GB/T 3939.2-2023
- Replace
- GB/T 3939.2-2004
- Introduction
Interpretation of GB/T 3939.2—2023 National Standard of the People's Republic of China
1. Background and Significance of the Standard
GB/T 3939.2—2023 "Nomenclature and Marking of Main Fishing Gear Materials Part 2: Nets" is a national standard of the People's Republic of China, which aims to unify the naming and marking rules of fishing nets. This standard replaces the old version GB/T3939.2—2004, adds more detailed provisions on fiber material codes, mesh shapes, and new materials such as PET nets, and further standardizes the production, trade and management of fishing gear materials.
2. Comparative analysis of standard frameworks
Old version of the standard (GB/T 3939.2—2004) New version of the standard (GB/T 3939.2—2023) Comparative analysis No systematic provisions for fiber material codes Main mesh fiber material codes have been added (see Chapter 4) New content has been added to standardize material naming The marking category is relatively simple The marking category, composition and expression form have been changed The structure is clearer and convenient for practical application Detailed provisions for mesh specifications are not involved Added mesh specification marking (see 5.1.1) and PET mesh marking (see 5.1.3.1) Added specifications for new materials 3. Interpretation of the core content of the standard
3.1 Terms and definitions
Fishing gear materials:Materials directly used to assemble fishing gear, including net lines, nets, ropes, etc.
Mesh:A sheet-like woven fabric with a certain mesh structure woven from net lines.3.2 Naming principles
The naming of mesh includes two parts: the fiber material name and the mesh structure:
- Fiber material name: refer to Table A.1 in Appendix A (such as PA for polyamide and PET-M for PET monofilament).
- Structural classification: divided into two categories: knotted mesh and knotless mesh.3.3 Marking method
Complete marking: Includes fiber material code, mesh specifications, mesh cable specifications and production standards.
Simple marking: Simplified representation, suitable for specific application scenarios.Case study: Naming and marking of PET mesh
Example: PET-M mesh produced according to GB/T18673
- Fiber material: semi-rigid polyethylene terephthalate monofilament (PET-M).
- Structural type: hexagonal mesh.
- Complete marking: PET-M—φ3.0mm×45mm(3m×20m) GJ GB/T 18673.4. Technological evolution and application
4.1 Diversification of fiber materials
The new version of the standard introduces more fiber materials, such as ultra-high molecular weight polyethylene (UHMWPE) and polypropylene/polyethylene composites. These new materials have significant advantages in strength, durability and cost-effectiveness.
4.2 Innovation of mesh structure
Added a variety of structures such as PET nets and warp knitted nets in knotless nets, enriching the application scenarios of fishing nets, especially the demand for high-quality nets in modern fisheries.
5. Implementation recommendations
- Enterprises:Update production processes and naming rules in a timely manner to ensure compliance with the requirements of the new standard. Strengthen employee training and enhance benchmarking awareness.
- Regulatory agencies:Formulate corresponding regulatory measures and technical review methods to ensure the effective implementation of the standard.
- Research Units: Continue to research new fishing net materials and structures to promote the innovative development of fishery technology.
GB/T 3939.2-2023 Referenced Document
- GB/T 3939.1 Nomenclature and signs of main fishing gear material—Part 1: Netting twine
- SC/T 5001 The basic terminology of fishing gear materials
GB/T 3939.2-2023 history
- 2023 GB/T 3939.2-2023 Nomenclature and signs of main fishing gear material—Part 2: Netting
- 2004 GB/T 3939.2-2004 Nomenclature and signs of main fishing gear material-Netting
- 1983 GB/T 3940-1983 Designation of netting
