SIST EN ISO 1806:2003

Fishing nets - Determination of mesh breaking force of netting (ISO 1806:2002)

ISO 1806:2002 specifies a method of determining the mesh-breaking force of netting for fishing.
Tests may be carried out in both the dry and wet states, but tests in the wet state are considered to be particularly appropriate in indicating the behaviour of the netting in use.

Fischnetze - Bestimmung der Maschen-Höchstzugkraft von Netztuchen (ISO 1806:2002)

Diese Europäische Norm legt ein Verfahren zur Bestimmung der Maschen-Höchstzugkraft von Netztuchen für Fischnetze fest.
Die Prüfungen dürfen sowohl im nassen als auch im trockenen Zustand durchgeführt werden, jedoch sind die Prüfungen im nassen Zustand als besonders geeignet zu betrachten, weil sie das Verhalten bei der Verwendung des Netztuches erkennen lassen.

Filets de peche - Détermination de la force de rupture de la maille de nappe de filet (ISO 1806:2002)

La présente Norme européenne spécifie une méthode permettant de déterminer la force de rupture des mailles de nappes de filets de pêche.
Les essais peuvent être effectués à l'état sec ou à l'état mouillé, mais les essais à l'état mouillé sont considérés particulièrement appropriés pour définir le comportement à l'emploi des nappes de filets.

Ribiške mreže - Ugotavljanje trdnosti s prekinjeno zanko v mreži (ISO 1806:2002)

General Information

• Status: Published
• Publication Date: 31-Jan-2003
• ICS: 65.150 - Fishing and fish breeding
• Technical Committee: ITEK - Textile and textile products
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 01-Feb-2003
• Due Date: 01-Feb-2003
• Completion Date: 01-Feb-2003
• Ref Project: EN ISO 1806:2002 - Fishing nets - Determination of mesh breaking force of netting (ISO 1806:2002)

Overview

SIST EN ISO 1806:2003 specifies a standardized method for determining the mesh breaking force of fishing netting. The procedure covers tests performed in both the dry and wet states, with wet testing considered particularly relevant for predicting in-use behaviour. The standard is intended for use in laboratory testing, quality control, procurement verification and product specification of fishing nets and netting materials.

Key Topics

• Scope: Defines the method to measure the maximum force at which a mesh (knot or joint) breaks when subjected to tensile load.
• Test states: Tests may be carried out in the dry state (conditioned to the standard atmosphere) or in the wet state (samples fully wetted before testing).
• Apparatus: Suitable tensile testing machines include constant rate of elongation, constant rate of force or constant rate of traverse machines; a constant rate of elongation machine is preferred. Pins or heavier yarn loops are used as holding devices.
• Atmosphere and conditioning: Dry-state testing follows ISO 139 standard atmospheres (20 °C ± 2 °C and 65 % ± 2 % relative humidity) until equilibrium. Wet-state samples must be fully wetted prior to testing by immersion in tap water (20 °C ± 2 °C) for not less than 12 h, or in a wetting-agent solution for 1 h, unless complete wetting is demonstrated in less time.
• Test parameters: The machine must be capable of producing the prescribed average time-to-break (mean duration ~ 20 s ± 3 s determined by preliminary tests). The force indication accuracy shall not exceed ±1 % in the range used.
• Sampling and preparation: Samples shall be representative and prepared to prevent untwisting; central mesh is used for measurement. If knot slippage occurs or incorrect break location results, tests are discarded and repeated.
• Number of tests: A minimum of 10 single tests per netting piece, unless otherwise agreed, with additional tests if required to meet confidence intervals.

Applications

• Quality control and acceptance testing of fishing nets
• Comparative assessment of netting materials and constructions
• Supplier verification and contract compliance testing
• Research and development of netting products to predict in-water performance

Related Standards

• ISO 139 - Standard atmospheres for conditioning and testing (referenced for dry-state conditioning)
• ISO 1805 - Determination of breaking load and knot breaking load of netting yarns (referenced where knot-breaking methods are required)
• CEN/TC 248 and ISO/TC 38 provide technical committee context for textile and fishing-net standards

Practical notes

• Tests in the wet state often better reflect service conditions and should be used when predicting in-use behaviour.
• Record and report all key test parameters: sample description, machine type and range, holding device, number of tests, discarded observations, average breaking force (daN), coefficient of variation/confidence interval, wet/dry state and any deviations from the procedure.

Following SIST EN ISO 1806:2003 ensures repeatable, comparable mesh breaking force results that support robust product specification and informed procurement decisions for fishing gear and related netting products.

Standards Content (Sample)

SLOVENSKI STANDARD
01-februar-2003
Ribiške mreže - Ugotavljanje trdnosti s prekinjeno zanko v mreži (ISO 1806:2002)
Fishing nets - Determination of mesh breaking force of netting (ISO 1806:2002)
Fischnetze - Bestimmung der Maschen-Höchstzugkraft von Netztuchen (ISO 1806:2002)
Filets de peche - Détermination de la force de rupture de la maille de nappe de filet (ISO
1806:2002)
Ta slovenski standard je istoveten z: EN ISO 1806:2002
ICS:
65.150 Ribolov in ribogojstvo Fishing and fish breeding
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN ISO 1806
NORME EUROPÉENNE
EUROPÄISCHE NORM
December 2002
ICS 65.150
English version
Fishing nets - Determination of mesh breaking force of netting
(ISO 1806:2002)
Filets de pêche - Détermination de la force de rupture de la Fischnetze - Bestimmung der Maschen-Höchstzugkraft von
maille de nappe de filet (ISO 1806:2002) Netztuchen (ISO 1806:2002)
This European Standard was approved by CEN on 6 July 2002.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European
Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national
standards may be obtained on application to the Management Centre or to any CEN member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CEN member into its own language and notified to the Management Centre has the same status as the official
versions.
CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,
Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36  B-1050 Brussels
© 2002 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 1806:2002 E
worldwide for CEN national Members.

Contents
page
Foreword.3
1 Scope .4
2 Normative references .4
3 Terms and definitions.4
4 Principle.4
5 Apparatus .5
6 Sampling.5
7 Preparation of samples .5
8 Requirements for testing .6
9 Number of tests.6
10 Test procedure .6
11 Calculation and expression of results.7
12 Test report .7
Foreword
This document EN ISO 1806:2002 has been prepared by Technical Committee CEN/TC 248 "Textiles and textile
products", the secretariat of which is held by BSI, in collaboration with Technical Committee ISO/TC 38 "Textiles".
This European Standard shall be given the status of a national standard, either by publication of an identical text or
by endorsement, at the latest by June 2003, and conflicting national standards shall be withdrawn at the latest by
June 2003.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following
countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland,
France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain,
Sweden, Switzerland and the United Kingdom.
1 Scope
This European Standard specifies a method of determining the mesh breaking force of netting for fishing.
Tests may be carried out in both the dry and wet states, but test in the wet state are considered to be particularly
appropriate in indicating the behaviour of the netting in use.
2 Normative references
This European Standard incorporates by dated or undated reference, provisions from other publications. These
normative references are cited at the appropriate places in the text, and the publications are listed hereafter. For
dated references, subsequent amendments to or revisions of any of these publications apply to this European
Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the
publication referred to applies (including amendments).
ISO 139, Textiles — Standard atmospheres for conditioning and testing.
ISO 1805, Fishing nets — Determination of breaking load and knot breaking load of netting yarns.
3 Terms and definitions
For the purposes of this European Standard, the following terms and definitions apply.
3.1
dry mesh breaking force
maximum force measured during a tensile test on meshes of netting in standard atmosphere
3.2
wet mesh breaking force
maximum force measured during a tensile test on meshes of netting in wet conditions
3.3
time-to-break
time, in seconds, taken to reach the mesh breaking force, measured from the moment of application of the force
4 Principle
A mesh is extended in the dry or wet state until one of the knots or joints reaches the force at rupture. The test is
performed using a suitable apparatus that records or indic
...