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GB 11779-2005The minimum mesh size of the trawl cod-end in the East China Sea and Yellow Sea (English PDF)

东海、黄海区拖网网囊最小网目尺寸

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Issued by

General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China; Standardization Administration of China

Level / Type

National · Mandatory

Issue date

June 2, 2005

Implementation date

October 1, 2005

Scope

GB 11779-2005 is the English-translated version of 东海、黄海区拖网网囊最小网目尺寸.

GB 11779-2005 fixes the minimum mesh size of the cod-end of trawls fished in the East China Sea and Yellow Sea. It applies to cod-end trawls used by motorized fishing vessels on the continental shelf fishing grounds outside the fishing-prohibited zone lines of the two seas.

The minimum mesh size is 54 mm, measured on the single-layer cod-end after immersion in water and shrinkage; mesh size is expressed as the inside mesh opening defined in SC/T 5001, measured by the method of GB/T 6964 with the pretension of GB/T 6965.

It replaces GB 11779-1989: the cod-end structure has been adjusted, the mesh size raised to not less than 54 mm and double-layer cod-end netting prohibited; all its technical contents are mandatory.

Issued on 2 June 2005 and in force since 1 October 2005. Classification: ICS 65.150, CCS B56. The document runs to 3 pages, delivered complete in English translation.

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Document preview — GB 11779-2005

National Standard of the People's Republic of China

ICS: 65.150
Classification: B56
Replacing: GB 11779-1989

Issued by: General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China; Standardization Administration of China

Foreword
1 Scope
2 Normative references
3 Minimum mesh size
4 Method of expressing and of measuring the mesh size

3 Minimum mesh size

4 Method of expressing and of measuring the mesh size

Foreword

All technical contents of this standard are mandatory.

This standard replaces GB 11779-1989, Minimum mesh size of the trawl cod-end in the East China Sea and Yellow Sea.

Compared with GB 11779-1989, the main changes are as follows:

- the structure of the cod-end has been adjusted;

- the mesh size shall be not less than 54 mm;

- the use of double-layer cod-end netting is prohibited.

This standard was proposed by the Ministry of Agriculture of the People's Republic of China.

This standard is under the jurisdiction of the Fishing Gear Sub-committee of the National Technical Committee for Standardization of Fisheries.

Drafting organisations: East China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences; Quality Supervision, Inspection and Testing Centre for Rope and Net Products, Ministry of Agriculture.

Main drafters: Wang Mingyan, Huang Hongliang, Tang Zhenming, Xu Baosheng, Zhang Xun, Zhou Aizhong.

Previous editions of the standard replaced by this standard:

- GB 11779-1989.

......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 3 pages — is available in the English PDF.

Referenced standards

Normative references

Similar standards

GB/T 10030-2026|GB/T 15101-2026|GB/T 15807-2026|GB/T 16871-2026|GB/T 18654.1-2026|GB/T 18654.10-2026

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