GB/T 19599.2-2004 Test methods for synthetic fiber fishing nets - Net dimensions

This part of GB/T 19599 specifies the determination of mesh length and mesh width. This part is applicable to the determination of mesh dimensions of knotted, warp-knitted, braided and twisted mesh. GB/T 19599.2-2004 Test methods for synthetic fiber fishing nets Mesh dimensions GB/T19599.2-2004 Standard download decompression password: www.bzxz.net

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National Standard of the People's Republic of China
GB/T19599.2—2004
Testing method for fishing nets of synthetic fibre-Size of netting
2004-11-09 Issued
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China Standardization Administration of China
2005-03-01 Implementation
GB/T19599.2-2004
GB/T19599 Test methods for synthetic fiber fishing nets" has the following standards: GB/T19599.1-2004 "Test methods for synthetic fiber fishing nets - Weight of nets";
GB/T19599.2-2004 "Test methods for synthetic fiber fishing nets - Size of nets".
This part is the second part of GB/T19599. This part is revised on the basis of SC/T3016.1--1988 "Methods for measuring the size of fishing nets". From the date of implementation of this part, SC/T5016.1--1988 will be effective. This part was proposed by the Fisheries Bureau of the Ministry of Agriculture.
This part is under the jurisdiction of the Sub-Technical Committee on Fishing Gear and Fishing Gear Materials of the National Technical Committee for Standardization of Fisheries (TC156/SC.4). The drafting unit of this part is the East China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences. The main drafters of this part are Chai Xiulao and Shi Gao. 1 Scope
Test methods for synthetic fiber fishing nets
Net size
This part of GB/T19599 specifies the determination of net length and net width. This part is applicable to the determination of net size of knotted, warp-knitted, braided and twisted nets. 2 Normative references
GB/T 19599.2—2004
The clauses in the following documents become the clauses of this part through reference in this part of GB/T19599. For any dated referenced document, all its accompanying amendments (excluding errors) or revisions are not applicable to this part. However, parties to agreements based on this part are encouraged to study whether the latest versions of these documents can be used. For any undated referenced document, the latest version shall apply to this part.
SC/T5001 Basic Terms of Fishing Gear Materials
3 Terms and Definitions
The following terms and definitions apply to this part of GB/T19599 3.1
Length of net Dettinglength
The longitudinal (N) dimension of the net. It can be expressed in terms of the number of meshes or the length of the net when it is fully stretched without stretching. The unit is meter [SC/\r 5001—1995. Definition 7.1] 3.2
Width of net nettingwidth
The transverse (T) dimension of the net. It can be expressed in terms of the number of meshes or the width of the net when it is fully stretched without stretching. The unit is meter. [SC/T5001·-1995.Definition 7.2]
4 Test items
a) Mesh length;
b) Mesh width.
5 Tester
Use a steel ruler that conforms to the legal measurement unit system, with a graduation value of 11mm. 6 Test method
6.1 Mesh length
6.1.1 When the mesh length is expressed in mesh number, count the number of meshes arranged parallel to the length direction of the mesh. 6.1.2 When the mesh length is expressed in meters, measure it according to the following method. 6.1.2.1 Place the mesh on a flat, dry surface, flatten it, straighten it, keep the meshes together and straight, and make the mesh fully straight. 6. .2.2 In the middle of the mesh, take any mesh, and measure the linear dimension formed by the mesh length from the end of the mesh in the direction of the mesh length, starting from the end of the mesh, and the number of meshes in sequence to the other end of GB/T19599.2-2004
, using a steel tape measure. Measure each mesh once, and take the effective number of four 3 pieces of side length: The length of the two sides of the mesh is taken from the left or right side of the mesh. The whole mesh is determined according to the method of 6.1.1 or 6.1.2. 6.1.3
6.1.4 When the length of the mesh exceeds 20m, it is allowed to be measured in sections on the same breeding line size according to the provisions of 6.1.2, and the sieve mesh length values ​​are accumulated.
2 Mesh width
Test method: the same as 6.1.1 and 6.1.2 respectively.
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