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
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

Nomenclature and signs of main fishing gear material—Part 2: Netting

Standard and Specification

BS EN ISO 16663-2:2003 Fishing nets - Method of test for the determination of mesh size - Length of mesh ISO 16663-1:2009 Fishing nets - Method of test for the determination of mesh size - Part 1: Opening of mesh BS EN ISO 16663-1:2009 Fishing nets, Method of test for the determination of mesh size - Opening of mesh EN ISO 16663-1:2009 Fishing nets - Method of test for the determination of mesh size - Part 1: Opening of mesh DIN EN ISO 16663-1:2009 Fishing nets - Method of test for the determination of mesh size - Part 1: Opening of mesh (ISO 16663-1:2009); English version of DIN EN ISO 16663-1:2009-07 SS-EN ISO 16663-1:2009 Fishing nets - Method of test for the determination of mesh size - Part 1: Opening of mesh (ISO 16663-1:2009, IDT GSO ISO 16663-1:2013 Fishing nets - Method of test for the determination of mesh size - Part 1: Opening of mesh KS K ISO 1107:2011 Fishing nets－Netting－Basic terms and definitions DIN EN ISO 16663-2 Berichtigung 1:2006 Fishing nets - Method of test for the determination of mesh size - Part 2: Length of mesh (ISO 16663-2:2003); German version EN ISO 16663-2:2003, Corrigenda IS 5508 Pt.1-1969 Fishing Gear Guide Part I General Principles

GB/T 3939.2-2023 -All Parts

GB/T 3939.1-2023 Nomenclature and signs of main fishing gear material—Part 1: Netting twine GB/T 3939.2-2023 Nomenclature and signs of main fishing gear material—Part 2: Netting GB/T 3939.3-2004 Nomenclature and signs of main fishing gear material-Rope GB/T 3939.4-2004 Nomenclature and signs of main fishing gear material-Float GB/T 3939.5-2004 Nomenclature and signs of main fishing gear material-Sinker


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