1531 NTERNATIONAL STANDARD (ISO Fishing nets - Hanging of netting - Basic terms and definitions First edition - 1973-07-01 ISO 1531-1973 (E) UDC 677.66 : 639.2.081.11 Ref.No. ISO 1531-1973 (E) Descriptors : textiles, nets, fishing nets, suspending (hanging), vocabulary. Price based on 1 page Copyright Intermational Organization for Standardization d without license from IHS Not for Resale FOREWORD IsO (the tnternational Organization for Standardization) is a worldwide federation of national standards institutes (IsO Member Bodies). The work of developing International Standards is carried out through Iso Technicat Committees. Every Member Body interested in a subject for which a Technicat Committee has been set up 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. Draft International Standards adopted by the Technical Committees are circulated to the Member Bodies for approval before their acceptance as Internationat Standards by the ISO Council. Prior to 1972, the results of the work of the Technical Committees were published as Iso Recommendations; these documents are now in the process of being transformed into International Standards. As part of this process, International Standard ISO 1531 replaces ISO Recommendation R 1531-1970 drawn up by Technical Committee ISO/TC 38, Textiles. The Member Bodies of the following countries approved the Recommendation : Australia India South Africa, Rep of Belgium iran Spain Brazil Israel Sweden Czechoslovakia ueder Switzerland Denmark Korea, Rep. of Thailand Egypt, Arab Rep. of Netherlands Turkey France Norway United Kingdom Germany Poland U.S.S.R. Greece Portugal Hungary Romania No Member Body expressed disapproval of the Recommendation. @ International Organization for Standardization, 1973· Printed in Switzerland Copyright intemational Oorganizatin for Standardization ed without license from IHS Not for Resale INTERNATIONAL STANDARD ISO1531-1973(E) Fishing nets - Hanging of netting - Basic terms and definitions 1SCOPEANDFIELDOFAPPLICATION 3.5 hanging ratio (symbol E) : The ratio between the length of final rope (see 3.3) and the length of netting This International Standard gives the principal terms (see 3.4), calculated as follows : relating to the hanging of netting for fishing nets, together with their definitions. length of rope lengthof netting In this equation, REFERENCE a)thenumeratoranddenominatorarebothexpressed ISO1107, Fishing nets-Netting-Basicterms and in the same unit of length, or definitions.1) b)thenumeratorindicatesthelengthof ropemeasured in mesh lengths on to which is hung the number of meshes indicated by the denominator. 3 TERMS AND DEFINITIONS Example : Hanging ratio E : means 10 3.1 mounting : The attachment of netting to a supporting rope or frame. a) that on to 7 m of rope a netting 10 m long is hung, or NOTE - The netting direction, N or T (see ISO 1107) in relation to b) that a section of rope of length equal to the length the rope used for mounting, must be stated precisely. of 7 meshes measured according to 3.4 is supporting 10 meshes of netting. 3.2 hanging : The mounting of netting according to a specific relationship between the length of that part of the The hanging ratio may be written as a vulgar fraction, or as final rope or frame on which the netting is mounted a decimal fraction or as a percentage. (see 3.3) and the length of the netting. Thus,usingtheaboveexample: 3.3 length of rope : The length of the section of the rope 7 or frame between the extreme points of mounting of the =3 orE=0,7orE=70% 10 netting. The standard method of expressing the ratio as a 3.4 length of netting : For the calculation of the hanging percentage, therefore,is as follows : ratio, "length of netting" means that dimension of the lengthofrope netting to be mounted which is parallel to the final rope or X 100 length of netting frame, measured when the netting