SIST EN ISO 1805:2007
(Main)Fishing nets - Determination of breaking force and knot breaking force of netting yarns (ISO 1805:2006)
- Abstract
ISO 1805:2006 specifies a method of testing the breaking force and knot breaking force of netting yarns for fishing nets.
Tests may be carried out in both the dry and wet states, but tests in the wet state on the knotted yarn are considered to be particularly appropriate in indicating the behaviour of the yarn in use.
- Status
- Published
- Publication Date
- 01-Jul-2007
- Technical Committee
- ITEK - Textile and textile products
- Current Stage
- 6060 - National Implementation/Publication (Adopted Project)
- Start Date
- 15-Jun-2007
- Due Date
- 20-Aug-2007
- Completion Date
- 02-Jul-2007
SIST EN ISO 1805:2007 is the Slovenian adoption of EN ISO 1805:2006, and it is identical to ISO 1805:2006. It specifies a test method for determining the breaking force and knot breaking force of netting yarns used for fishing nets. The standard is intended for laboratories, manufacturers, and buyers who need comparable results for yarn strength in dry or wet conditions.
What does SIST EN ISO 1805:2007 specify?
SIST EN ISO 1805:2007 specifies a method for testing the breaking force and knot breaking force of netting yarns for fishing nets. The method can be used on dry specimens or on specimens tested after wetting, with wet knotted yarns highlighted as particularly relevant to in-use behaviour.
The document is organized into these main parts:
- Clause 1 - Scope
- Clause 2 - Normative references
- Clause 3 - Terms and definitions
- Clause 4 - Principle
- Clause 5 - Apparatus
- Clause 6 - Sampling
- Clause 7 - Preparation of samples
- Clause 8 - Requirements for testing
- Clause 9 - Number of tests
- Clause 10 - Test procedure
- Clause 11 - Calculation and expression of results
- Clause 12 - Test report
What are the key requirements of SIST EN ISO 1805:2007?
SIST EN ISO 1805:2007 is built around a tensile test until rupture, with separate attention to unknotted yarn and yarn tied with a knot. In practice, the standard asks the user to control the test machine, the conditioning state of the yarn, the knotting method, and the way results are reported.
Test principle and measuring equipment
Clause 4 says the yarn is extended in the dry or wet state until rupture while the applied force is recorded or indicated. Clause 5 allows three machine types - constant rate of elongation, constant rate of load, and constant rate of traverse - but gives preference to constant rate of elongation machines. The machine must hold the sample without slip or damage, keep force error within ± 1 %, and accommodate a nominal gauge length of at least 250 mm. That matters because poor gripping or force control can change the measured breaking force.
Conditioning and wet testing
Clause 8 requires dry specimens to be brought to the standard atmosphere in ISO 139 before testing. For wet testing, specimens are immersed in tap water at (20 ± 2) °C for at least 12 h, or by agreement in a wetting-agent solution for a shorter period. This means the moisture state is part of the test result, so the wetting method must be stated clearly.
Sampling and sample preparation
Clauses 6 and 7 require sampling by recognized national standards or by agreement between the parties, and the yarn must be removed from the package without altering the twist. Clause 8 also requires at least 250 mm free length between the holding devices. In practice, this helps keep results comparable between suppliers and test laboratories.
Test duration, valid tests, and knots
Clause 8 sets a target mean time-to-break of (20 ± 3) s, with longer durations allowed when the apparatus or grips cannot achieve that rate. Clause 9 requires at least ten single valid tests per sample package. Clause 10 says wet specimens are tested immediately after removal from water, knots are made immediately before testing, and the weaver's knot is used for knotted yarns. Tests that slip, are damaged by the grips, or do not break at the knot are discarded and recorded.
Results and reporting
Clause 11 gives the calculation of average breaking force, average tenacity, and breaking length, and allows coefficient of variation and confidence interval when needed. Clause 12 lists the report items, including yarn identification, machine and grip type, sampling method, wetting conditions, average breaking force, and any deviations from the procedure. That matters because the report has to explain exactly how the result was obtained.
What terms does SIST EN ISO 1805:2007 define?
- Breaking force - the maximum force observed during the breaking test.
- Force at rupture - the final force at the moment the specimen, or its first component, breaks at or after the breaking force.
- Tenacity - breaking force per unit resultant linear density of the conditioned specimen.
- Breaking length - the calculated length of specimen whose conditioned weight would produce its breaking force.
- Time-to-break - the time from force application to reaching the breaking force, measured in seconds.
Who uses SIST EN ISO 1805:2007?
SIST EN ISO 1805:2007 is used by fishing net manufacturers, netting yarn suppliers, test laboratories, quality managers, and buyers who need strength data for incoming inspection, product comparison, or specification control. It is also used when dry and wet performance must be compared under the same test method.
What changed in SIST EN ISO 1805:2007 from the previous edition?
SIST EN ISO 1805:2007 is the implementation of EN ISO 1805:2006, and ISO 1805:2006 is identified as the second edition. The foreword states that this second edition cancels and replaces ISO 1805:1973 and that it is a technical revision.
Which standards are used with SIST EN ISO 1805:2007?
- ISO 139 - provides the standard atmosphere for conditioning and testing dry specimens.
- ISO 858 - gives the Tex system designation for netting yarns, which is used in the test report to identify the yarn.
What does the SIST EN ISO 1805:2007 document contain?
The document contains the full test method, including the measuring principle, apparatus requirements, sampling rules, wet and dry conditioning, and the step-by-step test procedure. It also includes calculation rules for breaking force, tenacity, and breaking length, plus the items that belong in a test report.
It includes a figure for the holding devices used when testing netting yarns without knots, and a figure showing the weaver's knot used for knotted yarn testing. These figures support correct grip setup and knot preparation.
The document also gives practical controls for test validity, such as discarding slipped specimens or those damaged by the grips, and recording any break that occurs before the breaking force is reached. That helps laboratories report results that can be traced back to the exact test conditions.
Relations
- Effective Date
- 09-Feb-2026
- Effective Date
- 28-Jan-2026
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Frequently Asked Questions
SIST EN ISO 1805:2007 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "Fishing nets - Determination of breaking force and knot breaking force of netting yarns (ISO 1805:2006)". This standard covers: ISO 1805:2006 specifies a method of testing the breaking force and knot breaking force of netting yarns for fishing nets. Tests may be carried out in both the dry and wet states, but tests in the wet state on the knotted yarn are considered to be particularly appropriate in indicating the behaviour of the yarn in use.
ISO 1805:2006 specifies a method of testing the breaking force and knot breaking force of netting yarns for fishing nets. Tests may be carried out in both the dry and wet states, but tests in the wet state on the knotted yarn are considered to be particularly appropriate in indicating the behaviour of the yarn in use.
SIST EN ISO 1805:2007 is classified under the following ICS (International Classification for Standards) categories: 65.150 - Fishing and fish breeding. The ICS classification helps identify the subject area and facilitates finding related standards.
SIST EN ISO 1805:2007 has the following relationships with other standards: It is inter standard links to SIST ISO 858:1999, SIST EN 13480-6:2012/A1:2017. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
SIST EN ISO 1805:2007 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Fishing nets - Determination of breaking force and knot breaking force of netting yarns (ISO 1805:2006)Ribiške mreže - Ugotavljanje pretržne sile in trdnosti vozla prej za mreže (ISO 1805:2006)Filets de peche - Détermination de la force de rupture et de la force de rupture au noeud des fils pour filets (ISO 1805:2006)Fischnetze - Bestimmung der Höchstzugkraft und der Knotenhöchstzugkraft von Netzgarn (ISO 1805:2006)Ta slovenski standard je istoveten z:EN ISO 1805:2006SIST EN ISO 1805:2007en;fr;de65.150Ribolov in ribogojstvoFishing and fish breedingICS:SLOVENSKI
STANDARDSIST EN ISO 1805:200701-julij-2007
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN ISO 1805November 2006ICS 65.150 English VersionFishing nets - Determination of breaking force and knot breakingforce of netting yarns (ISO 1805:2006)Filets de pêche - Détermination de la force de rupture et dela force de rupture au noeud des fils pour filets (ISO1805:2006)Fischnetze - Bestimmung der Höchstzugkraft und derKnotenhöchstzugkraft von Netzgarn (ISO 1805:2006)This European Standard was approved by CEN on 25 October 2006.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the Central Secretariat or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania,Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2006 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN ISO 1805:2006: E
Foreword
This document (EN ISO 1805:2006) 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 May 2007, and conflicting national standards shall be withdrawn at the latest by May 2007.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
Reference numberISO 1805:2006(E)© ISO 2006
INTERNATIONAL STANDARD ISO1805Second edition2006-11-15Fishing nets —Determination of breaking force and knot breaking force of netting yarns Filets de pêche —Détermination de la force de rupture et de la force de rupture au noeud des fils pour filets
ISO 1805:2006(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In downloading this file, parties accept therein the responsibility of not infringing Adobe's licensing policy. The ISO Central Secretariat accepts no liability in this area. Adobe is a trademark of Adobe Systems Incorporated. Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation parameters were optimized for printing. Every care has been taken to ensure that the file is suitable for use by ISO member bodies. In the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below.
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ii © ISO 2006 – All rights reserved
ISO 1805:2006(E) © ISO 2006 – All rights reserved iiiContents Page Foreword.iv 1 Scope.1 2 Normative references.1 3 Terms and definitions.1 4 Principle.2 5 Apparatus.2 6 Sampling.3 7 Preparation of samples.3 8 Requirements for testing.4 9 Number of tests.4 10 Test procedure.4 11 Calculation and expression of results.5 12 Test report.6
ISO 1805:2006(E) iv © ISO 2006 – All rights reserved Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 1805 was prepared by the European Committee for Standardization (CEN) Technical Committee CEN/TC 248, Textiles and textile products, in collaboration with Technical Committee ISO/TC 38, Textiles, in accordance with the Agreement on technical cooperation between ISO and CEN (Vienna Agreement). This second edition cancels and replaces the first edition (ISO 1805:1973), of which it constitutes a technical revision.
INTERNATIONAL STANDARD ISO 1805:2006(E) © ISO 2006 – All rights reserved 1Fishing nets — Determination of breaking force and knot breaking force of netting yarns 1 Scope This Int
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