IS 8746: Fishing nets - Mounting and joining of netting - Terms and illustrations

13 Pages·1993·1.2 MB·English

by  Bureau of Indian Standards

इंटरनेट मानक
Disclosure to Promote the Right To Information
Whereas the Parliament of India has set out to provide a practical regime of right to
information for citizens to secure access to information under the control of public authorities,
in order to promote transparency and accountability in the working of every public authority,
and whereas the attached publication of the Bureau of Indian Standards is of particular interest
to the public, particularly disadvantaged communities and those engaged in the pursuit of
education and knowledge, the attached public safety standard is made available to promote the
timely dissemination of this information in an accurate manner to the public.
“जान1 का अ+धकार, जी1 का अ+धकार” “प0रा1 को छोड न’ 5 तरफ”
Mazdoor Kisan Shakti Sangathan Jawaharlal Nehru
“The Right to Information, The Right to Live” “Step Out From the Old to the New”
IS 8746 (1993): Fishing nets - Mounting and joining of
netting - Terms and illustrations [TXD 18: Textile
Materials for Marine-Fishing Purposes]
“!ान $ एक न’ भारत का +नम-ण”
Satyanarayan Gangaram Pitroda
““IInnvveenntt aa NNeeww IInnddiiaa UUssiinngg KKnnoowwlleeddggee””
“!ान एक ऐसा खजाना > जो कभी च0राया नहB जा सकता हहहहै””ै”
Bhartṛhari—Nītiśatakam
“Knowledge is such a treasure which cannot be stolen”

IS 8746 : 1993
IS0 3660 : 1976

Indian Standard
GNIHSIF STEN m- GNITNUOM AND GNINImOJ FO
GNITTEN - TERMS AND SNOITARTSULLI
(
First Revision )
UDC 677’076*732/‘736 : 639’2’081’11 : 001’4

0 SIB 3991
BUREAU OF INDIAN STANDARDS
MANAK BHAVAN, -9 BAHADUR SHAH ZAFAR MARG
NEW DELHI 11-0002
September 1993 Price G-roup ‘3
elitxeT slairetaM rof gnihsiF/eniraM sesopruP lanoitceS Committee, XT 81
LANOITAN FOREWORD
sihT naidnI dradnatS hcihw si lacitnedi htiw 0SI 0663 : 6791 gnihsiF‘ sten - gnitnuoM dna
gninioj fo gnitten - Terms dna ,’snoitartsulli deussi yb eht lanoitanretnI noitazinagrO rof
noitazidradnatS ( 0SI ) saw detpoda yb eht uaeruB fo naidnI sdradnatS no eht noitadnemmocer
fo eht elitxeT slairetaM rof gnihsiF/eniraM sesopruP lanoitceS Committee dna lavorppa fo eht
elitxeT noisiviD .licnuoC
ylnO eht hsilgnE egaugnal txet ni eht lanoitanretni dradnats sah neeb deniater elihw gnitpoda
ti ni siht naidnI .dradnatS
Wherever eht sdrow lanoitanretnI‘ ’dradnatS ,raeppa gnirrefer ot siht ,dradnats yeht dluohs eb
daer sa naidnI‘ .’dradnatS
nI siht naidnI ,dradnatS eht gniwollof lanoitanretni sdradnats era derrefer .ot daeR ni rieht
evitcepser ecalp eht :gniwollof
International Standard Indian Standard
0SI 1531, gnihsiF sten - gnignaH fo SI 8436 : 1791 cisaB terms rof gnignah fo gnitten
gnitten - cisaB terms dna snoitinifed ( yllacinhceT tnelaviuqe )
IS 6746 : 1993
:
IS0 3660 1976
Indian Standard
GNIHSIF STEN - GNITNUOM DNA JOINING FO
GNITTEN - SMRET DNA SNOITARTSULLI
( 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. 1
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
b) Loose mounting
special yarns on to a rope (see 1.2) or a frame (see 1.3). for

the purpose of hanging (see IS0 1531). The meshes are strung freely on to the mounting yarn,
rope, or frame. The mounting yarn is fixed to the rope or
1.2 rope : The rope on which the netting is frxed. frame and thus determines the grouping of the meshes (see
3 to 7).
:
1.3 frame A trame of a suitable material and convenient
(Mounting 6 is for use with small meshes.)
srze. 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).
IS 8746 :.1 993
IS0 3660 : 1976
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).
6
7
c! Mixed mounting
Certain meshes are attached at given intervals to the rope or
frame by the mounting yarn, the ot hers being attached

loosely to the rope or frame (see 8 to 10).

This method is a combination of methods 1 and 3.
8

2
IS 8746 : 1993
Iso 3660 : 1976
2.1.2 Mounting of square and fly meshes
b) Fixed mounting
TYPE of MOUNTING
The meshes are fixed to the rope or frame by the mounting
a) Loose mounting yarn at the-cuts (see 19).
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).
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 101n1ngt wo netter-g panels of TA cut, the edge IS
often reinforced by another thread. This process is called
“selvedglng”
16 There are two methods of jorning nettrng :
:
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
b) Fixed mounting
second case, be fastened at given intervals.
Each sctuare mesh is fixed directly to the rope or frame by b) seaming (lacing) : The fastemng, by means of a thread,
the mounting yarn (see 17).
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
CiJt sl
2.2 Tapered netting with edges cut by a combination 0of TYPE OF MESH
cub K 4N or T)-and 6 a) Dramond-shaped meshes (AK (AN or AT) cuts)
TYPE OF MOUNTING Panels with the same numbers of meshes, and either the
same or different mesh sizes (see 1 and 2).
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).

18 1
3
IS 8746 : 1993
IS0 3860 : 1976
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).
2
b) Diamond-shaped meshes (AK (AN or AT) cuts)
Panels with different numbers of meshes and different mesh
sizes (see 3 to 6).
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
6 Combined K (N or T) and B cuts
4
IS 8748 : 1993
IS0 3880 : 1978
Panels wrth the same number of meshes, with different
c) Diamond-shaped meshes (AK (AN or AT) or A8 cuts)
types of cut (see 10).
Panels ~with-the same number of meshes and either the same
or different mesh sizes (knots are made at given intervals).
N and B cuts Coupes N et B (See 13.1
AN cut
Coupe AN
4.2 Seaming (lacing) 13
d) Diamond-shaped meshes (AK (AN or AT) or AB cuts)
4.2.1 Netting with straight edges (AK (AN or AT) or AB
cutsl
Panels with the same number of meshes and the same mesh
sizes, or with different numbers of meshes and different
TVPE OF MESH
mesh sizes (see 14).
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).

14
11
e) Square meshes (AB cuts)
b) Diamond-shaped meshes (AK (AN or AT) or AB cuts) Panels with the same number of meshes and the same mesh
size, or with different numbers of meshes and different
Panels with different numbers of meshes and either the
mesh sizes (the knots, which are made at given intervals, are
same or different mesh sizes (see 12).
not shown in the figure). (See 15.)

15
5