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है”ह”ह

IS 8746 (1993): Fishing nets - Mounting and joining ofnetting - Terms and illustrations [TXD 18: TextileMaterials for Marine-Fishing Purposes]

IS 8746 : 1993 IS0 3660 : 1976

Indian Standard

FISHING NETS m- MOUNTING AND JOmINING OF NETTING - TERMS AND ILLUSTRATIONS

( First Revision )

UDC 677’076*732/‘736 : 639’2’081’11 : 001’4

0 BIS 1993

BUREAU OF INDIAN STANDARDS MANAK BHAVAN, -9 BAHADUR SHAH ZAFAR MARG

NEW DELHI 11-0002

September 1993 Price G-roup ‘3

Textile Materials for Marine/Fishing Purposes Sectional Committee, TX 18

NATIONAL FOREWORD

This Indian Standard which is identical with IS0 3660 : 1976 ‘Fishing nets - Mounting and joining of netting - Terms and illustrations’, issued by the International Organization for Standardization ( IS0 ) was adopted by the Bureau of Indian Standards on the recommendation of the Textile Materials for Marine/Fishing Purposes Sectional Committee and approval of the Textile Division Council.

Only the English language text in the international standard has been retained while adopting it in this Indian Standard.

Wherever the words ‘International Standard’ appear, referring to this standard, they should be read as ‘Indian Standard’.

In this Indian Standard, the following international standards are referred to. Read in their respective place the following:

International Standard Indian Standard

IS0 1531, Fishing nets - Hanging of IS 6348 : 1971 Basic terms for hanging of netting netting - Basic terms and definitions ( Technically equivalent )

IS 6746 : 1993

IS0 3660 : 1976

Indian Standard

FISHING NETS - MOUNTING AND JOINING OF NETTING - TERMS AND ILLUSTRATIONS

( First Revision )

SCOPE AND FIELD OF APPLICATION

Thrs Internatronal Standard lrsts the common methods of

mountrng and joinrng of nettrng for frshrng, givrng brief

descrrptrons of the methods together with correspondrng

dragrams.

Each method IS rdentifted by a number.

REFERENCE

IS0 1531, Fishing nets -- Hanging of netting - Basic terms

and definrtions.

SECTION ONE : MOUNTING OF NETTING

1 DEFINITIONS

1.1 mounting : The fixing of meshes individually or rn groups by means of either a mounting yarn (see 1.4) or

special yarns on to a rope (see 1.2) or a frame (see 1.3). for

the purpose of hanging (see IS0 1531).

1.2

1.3

srze.

rope : The rope on which the netting is frxed.

frame : A trame of a suitable material and convenient on which the netting IS fixed.

1.4 mounting yarn : Netting yarn used for the mounting of meshes (on the edges of the panel) to the rope or frame

2 METHODS OF MOUNTING NETTING

2.1 Netting with straight edges (AK IAN or ATI or AB

cuts)

2.1 .l Mounting of diamond-shaped meshes

TYPE OF MOUNTING

a) Fixed mounting

Each mesh is fixed directly on to the rope or frame by

means of a mounting yarn (see 1 and 2).

1

b) Loose mounting

The meshes are strung freely on to the mounting yarn,

rope, or frame. The mounting yarn is fixed to the rope or

frame and thus determines the grouping of the meshes (see

3 to 7).

(Mounting 6 is for use with small meshes.)

IS 8746 :. 1993

IS0 3660 : 1976

6

7

c! Mixed mounting

Certain meshes are attached at given intervals to the rope or frame by the mounting yarn, the others being attached loosely to the rope or frame (see 8 to 10).

This method is a combination of methods 1 and 3.

8

d) Mounting using special yarns (Norse1 mounting)

The meshes are mounted at fixed intervals by special short lines (norsels) of appropriate length, either directly or bv means of a mounting yarn to which the meshes can be attached (see 11 to 14).

2

IS 8746 : 1993

Iso 3660 : 1976

2.1.2 Mounting of square and fly meshes

TYPE of MOUNTING

a) Loose mounting

Each mesh (either square or fly mesh) IS secured loosely to the rope or frame at the required distance by means of a mounting yarn tied to the rope or frame (see 15 and 16).

16 There are two methods of jorning nettrng :

b) Fixed mounting

The meshes are fixed to the rope or frame by the mounting yarn at the-cuts (see 19).

19

SECTION TWO : JOINING OF NETTING

3 DEFINITIONS

3.1 joining of netting : The process of connecting, by means of a thread, the edges of nettrng panels which can

differ in the number of meshes, mesh size and types of cut.

NOTE - Before 101n1ng two netter-g panels of AT cut, the edge IS often reinforced by another thread. This process is called “selvedglng”

b) Fixed mounting

ar sewing : The formation, using a thread, of a row of knotted half-meshes or of loops loosely placed through the

meshes at the edge of the net. The thread can, in this second case, be fastened at given intervals.

Each sctuare mesh is fixed directly to the rope or frame by the mounting yarn (see 17).

b) seaming (lacing) : The fastemng, by means of a thread, of one or more meshes at the edge of each panel without

involvihg the formation of a row of half-meshes. The thread

is knotted at every mesh or at given intervals.

4 METHODS OF JOINING NETTING

4.1 Sewing

4.1.1 Netting with straight edges (AK (AN or AT) or AB CiJ tsl

2.2 Tapered netting with edges cut by a combination 0of cub K 4N or T)-and 6

TYPE OF MOUNTING

al Loose mounting

Meshes near the cut edge are strung on the mounting yarn which is fixed at intervals to the rope or frame (see 18).

TYPE OF MESH

a) Dramond-shaped meshes (AK (AN or AT) cuts)

Panels with the same numbers of meshes, and either the same or different mesh sizes (see 1 and 2).

18 1

3

IS 8746 : 1993

IS0 3860 : 1976

2

b) Diamond-shaped meshes (AK (AN or AT) cuts)

Panels with different numbers of meshes and different mesh sizes (see 3 to 6).

c) Diamondshaped meshss (AK (AN or AT) cuts)

Panels with either the same number or different numbers of meshes and either the same or different mesh sizes (see 7 and 8).

8

d) Square meshes (AB cuts)

Panels with the same number of meshes and the same mesh size (see 9).

4.1.2 Netting with edps cut by a combinetion of K (Nor Tl and B cuts

TYPE OF MESH

Combined K (N or T) and B cuts 6

4

IS 8748 : 1993

IS0 3880 : 1978

Panels wrth the same number of meshes, with different types of cut (see 10).

N and B cuts Coupes N et B

AN cut Coupe AN

4.2 Seaming (lacing)

4.2.1 Netting with straight edges (AK (AN or AT) or AB cutsl

TVPE OF MESH

a) Diamond-shaped meshes (AK (AN or AT) or AB cuts1

Panels with the same number of meshes and either the same or different mesh sizes (see 1 1).

c) Diamond-shaped meshes (AK (AN or AT) or A8 cuts)

Panels ~with-the same number of meshes and either the same or different mesh sizes (knots are made at given intervals). (See 13.1

13

d) Diamond-shaped meshes (AK (AN or AT) or AB cuts)

Panels with the same number of meshes and the same mesh sizes, or with different numbers of meshes and different mesh sizes (see 14).

11

b) Diamond-shaped meshes (AK (AN or AT) or AB cuts)

Panels with different numbers of meshes and either the

same or different mesh sizes (see 12).

14

e) Square meshes (AB cuts)

Panels with the same number of meshes and the same mesh size, or with different numbers of meshes and different mesh sizes (the knots, which are made at given intervals, are not shown in the figure). (See 15.)

15

5

IS 8746 : 1993

IS0 3660 : 1976

f) Square meshes (A8 cuts)

Panels with the same number of meshes and the same mesh size. (Special case of the above : knotting on each side of the mesh.) (See 16.)

16

4.2.2 Netting with edges cut by a combination of K (Nor T/ add B cuts

TYPE OF MESH

Combined K (N or T) and 8 cuts

Panels with the same number of meshes or different numbers of meshes, with different types of cut (see 17).

17

5 INDICATION OF THE JOINING FtATlO (TAKE-UP)

For the joining of different panels, the ratio of the number of meshes on one panel’s edge to the number on the other panel’s edge is indicated as a fraction.

Examples

1) ; means that, each time, 8 meshes of the first panel

should be joined to 11 meshes of the second panel.

If, instead of the number of meshes, one wishes to refer to the extended length of each panel, the unit of length (generally the metre) should be shown in the joining ratio.

2m

2’ 3m means that, each time, 2 m of the first panel

should be joined to 3 m of the second panel.

Reprography Unit, BlS, New Delhi, India

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Amendments Issued Since Publication

Amend No. Date of Issue Text Affected

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