BS ISO 18692-2007 Fibre ropes for offshore stationkeeping - Polyester《海上位置保持用纤维绳索 聚酯》.pdf

1、 g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58ICS 59.080.50Fibre ropes for offshore stationkeeping Polyester BRITISH STANDARDBS ISO 18692:2007BS

2、ISO 18692:2007This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 March 2007 BSI 2007ISBN 978 0 580 50353 5Amendments issued since publicationAmd. No. Date Commentscontract. Users are responsible for its correct application.Compliance with a B

3、ritish Standard cannot confer immunity from legal obligations.National forewordThis British Standard was published by BSI. It is the UK implementation of ISO 18692:2007.The UK participation in its preparation was entrusted to Technical Committee TCI/77, Ropes and cordage and fishing nets.A list of o

4、rganizations represented on TCI/77 can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a Reference numberISO 18692:2007(E)INTERNATIONAL STANDARD ISO18692First edition2007-03-01Fibre ropes for offshore stationkeeping Polyester Corda

5、ges en fibres pour le maintien en position des structures marines Polyester BS ISO 18692:2007ii iiiContents Page Foreword iv 1 Scope . 1 2 Normative references . 1 3 Terms and definitions. 1 4 Materials 3 5 Requirements Rope properties. 4 6 Requirements Rope layout and construction . 5 7 Rope testin

6、g 7 8 Report 9 9 Certification . 10 10 Marking, labelling and packaging . 10 Annex A (normative) Fibre qualification and testing 11 Annex B (normative) Rope testing . 15 Annex C (informative) Certificate of conformity Polyester ropes for offshore stationkeeping. 26 Annex D (informative) Guidance for

7、 rope handling care 27 Annex E (informative) Commentary . 38 Bibliography . 43 BS ISO 18692:2007iv 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 c

8、arried 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 wor

9、k. 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 Inter

10、national 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 th

11、e 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 18692 was prepared by Technical Committee ISO/TC 38, Textiles. BS ISO 18692:20071Fibre ropes for offshore stationkeeping Polyester 1 Scope This Intern

12、ational Standard specifies the main characteristics and test methods of new polyester fibre ropes used for offshore stationkeeping. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies.

13、For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 1968, Fibre ropes and cordage Vocabulary ISO 7500-1, Metallic materials Verification of static uniaxial testing machines Part 1: Tension/compression testing machines Verification and calibra

14、tion of the force-measuring system ASTM D 885, Standard test methods for tire cords, tire cord fabrics, and industrial filament yarns made from manufactured organic-base fibers CORDAGE INSTITUTE CI 1503, Test method for yarn-on-yarn abrasion 3 Terms and definitions For the purposes of this document,

15、 the terms and definitions given in ISO 1968 and the following apply. 3.1 breaking strength BS maximum force applied in straight tension to a rope, which causes it to rupture 3.2 core central part which is the load-bearing part of the rope 3.3 cover braided cover or other protective layer, which is

16、placed over the rope core NOTE The cover has no significant contribution to the rope strength. 3.4 dynamic stiffness ratio of rope load to strain variations between the lower (trough) and upper (peak) stresses imposed during testing, normalized by the rope minimum breaking strength See B.3.6.2. BS I

17、SO 18692:20072 3.5 marine finish process and substance used on a fibre or yarn to improve the yarn-on-yarn abrasion performance of the product in a marine environment 3.6 marine grade fibre fibre intended for use in a marine environment, that is provided with marine finish, and that has demonstrated

18、 performance in this respect 3.7 material certificate document prepared by the manufacturer and the fibre producer certifying the type and grade of fibre material, the properties of the fibre, and that the material used in rope production is that which is specified in the rope design specification 3

19、.8 minimum breaking strength MBS specified minimum value that the breaking strength of a rope shall achieve when tested following the procedure in this International Standard NOTE In this International Standard, the specified MBS is that of a terminated rope. 3.9 prototype rope rope fully complying

20、with the rope design specification made for the purpose of testing either before an order is placed or before regular rope production begins for an order 3.10 qualified rope rope already certified by the manufacturer as complying with the requirements laid down in this International Standard, includ

21、ing all the relevant prototype testing 3.11 recognized classification society RCS classification society being a member of the International Association of Classification Societies (IACS), with recognized and relevant competence and experience in fibre rope mooring, and with established rules/guidel

22、ines for related classification/certification activities 3.12 rope construction manner in which the fibres, yarns and strands are assembled together in making the rope NOTE In some rope constructions, rope core is made of sub-ropes, i.e. laid or braided ropes, that are assembled together by laying,

23、braiding, or in parallel. 3.13 rope design specification document which completely describes the design of the rope, including the numbers and arrangements of strands, the strand pitch, the material chemical composition and the manufacturing method 3.14 rope manufacturing specification document whic

24、h completely describes the process of making the rope, including instructions for each step of the manufacturing process BS ISO 18692:200733.15 rope production report document which completely describes the rope product, including rope design, termination design, and assembly length, and which inclu

25、des the material certificates, material test results and the various checklists 3.16 rope termination method (e.g. splice, potted socket, wedged socket) by which the rope is attached to the assembly interface 3.17 termination specification document which completely describes the design of the termin

26、ation and the process of making that termination, including materials and steps for making or assembling the termination 3.18 torque moment that produces or tends to produce a twisting or a rotating motion around rope axis, i.e. the tendency of a rope to rotate due to a change in tension 4 Materials

27、 4.1 Rope core material 4.1.1 Fibre tenacity The fibre used in the core of the rope shall be high tenacity polyester fibre, with an average tenacity not less than 0,78 N/tex and in accordance with Annex A. 4.1.2 Marine grade The polyester fibres used in the core shall be marine grade fibres. The yar

28、n-on-yarn abrasion performance shall be verified by tests on wet yarn, in accordance with Annex A, and it shall meet the requirements of A.4.2.1.4. 4.2 Rope cover material When polyester yarn is used in the protective cover, its minimum tenacity shall be 0,73 N/tex and in accordance with Annex A. 4.

29、3 Other materials Other materials employed in rope assembly shall be identified in the rope design/manufacturing specification. For each material, the following shall be specified, as applicable: a) base material; b) size (linear density, mass per unit area, ); c) relevant strength properties (tenac

30、ity, hardness, ). BS ISO 18692:20074 5 Requirements Rope properties 5.1 Minimum breaking strength The minimum breaking strength of the rope, when tested according to Clause 7 and Annex B, shall conform to Table 1. Table 1 Minimum breaking strength (MBS) Reference number a Minimum breaking strength k

31、N 106 3 140 118 3 920 132 4 900 150 6 180 160 6 960 170 7 850 180 8 830 190 9 810 200 11 000 212 12 30224 13 700 236 15 70250 17 700 265 19 60aThe reference number corresponds to the approximate outer diameter of the rope, in millimetres (mm). Actual diameters may vary for a given reference number.

32、5.2 Minimum core tenacity The rope minimum core tenacity shall be 0,47 N/tex, measured according to Annex B. All samples tested shall comply with this minimum value. 5.3 Dynamic stiffness at end of bedding-in The dynamic stiffness at the end of the bedding-in sequence, obtained at the time of the pr

33、ototype testing in step 8 of the rope test procedure in B.3.1, shall be between 18 and 28. NOTE A different range may be specified by the purchaser. BS ISO 18692:200755.4 Torque properties 5.4.1 Torque-neutral rope A rope is considered torque-neutral if it has a torque factor, Q, of less than 0,005.

34、 TQ = d Fwhere Q is the torque factor; d is the rope diameter, expressed in millimetres (mm); F is the force applied to the rope, expressed in kilonewtons (kN); T is the torque generated by the rope, expressed in newton metres (Nm). The test method to demonstrate torque-neutral behaviour is defined

35、in B.6.1. Parallel construction ropes having braided sub-ropes or an equal number of left lay and right lay twisted sub-ropes which are all identical in every respect except for twist direction are inherently torque-neutral (see also 6.2). These constructions need not have their torque generation ve

36、rified. 5.4.2 Torque-matched rope A rope is considered torque-matched if its torsional characteristic over the design load range is essentially the same as that of the wire rope to which it is to be connected. When tested as described in B.6.2, the angular rotation in the wire rope element shall not

37、 exceed 5 per rope lay. 5.5 Cyclic loading performance The rope shall have demonstrated performance under cycling loading following the requirements of 7.1.6 and B.5. 5.6 Particle ingress protection If specified, the rope shall be constructed with a protection of the core against the ingress of part

38、icles having a size greater than 20 m (microns) or as agreed between involved parties. Testing of the protection shall be performed in accordance with B.7. The tests shall be performed on one rope size within the range of Table 1. 6 Requirements Rope layout and construction 6.1 General The typical s

39、ection of a rope shall comprise a rope core, providing intended strength and stiffness, and a cover. BS ISO 18692:20076 6.2 Type of construction The rope shall be of one of the following types of construction: torque-neutral construction (type TF); torque-matched construction (type TM). The type of

40、rope shall be specified by the purchaser. NOTE Torque-neutral ropes are intended for use in mooring systems together with chain or torque-neutral spiral strand wire ropes. Torque-matched ropes are intended for use in mooring systems together with six-strand wire ropes or other non torque-neutral wir

41、e ropes. Typical constructions are illustrated in Figures E.1 and E.2. 6.3 Rope core 6.3.1 The total number of yarns in the rope shall be at least the number specified in the rope design specification. 6.3.2 Splices are not allowed in the rope core nor in sub-ropes, except for those at the end termi

42、nations. Strands shall be uninterrupted over the length of the rope, with no splice or strand interchange. NOTE Yarns may be joined if necessary. 6.4 Protective cover 6.4.1 A protective cover shall be provided around the rope core to protect the rope core from mechanical damages (mainly abrasion) du

43、ring handling and in service. The protection shall be water-permeable. 6.4.2 A polyester braided protective cover shall have a minimum thickness of 7,0 mm. Strand interchanges, i.e. the overlapping continuation of an interrupted strand with another identical strand following the same path, are permi

44、tted if they are properly staggered. 6.4.3 If an alternative protective cover is used, it shall demonstrate a level of protection equal to that of a polyester braided cover. 6.4.4 A braided cover shall include coloured strands forming a pattern so that rope twist during installation or in service ca

45、n be identified. There shall be a minimum of one S coloured strand and one Z coloured strand to form a cross on the rope. An alternative protective cover shall be fitted with an axial stripe of contrasting colour, or other means to identify rope twist during installation or in service. 6.5 Terminati

46、ons The terminations shall be made of an eye splice plus abrasion protection materials. NOTE There may be other terminations provided that they do not jeopardize the rope performance. The dimensions and arrangement of the eye shall match the diameter and groove shape of the thimble (or other interfa

47、ce piece) to be used for end connections, and shall be the same as for the rope prototype testing. BS ISO 18692:20077In the splice area, the integrity and the continuity of rope cover and particle-ingress protection, if fitted, shall be preserved or restored. The eye and the splice area shall be fur

48、ther covered by an abrasion protection coating such as polyurethane. Each termination shall be made according to the manufacturing practice as described in the termination specification. 6.6 Length of rope The standardized bedded-in lengths of the rope sections shall be multiples of one hundred metr

49、es (100 m), calculated in accordance with 7.2.2, under 20 % of MBS, unless otherwise agreed on the purchase order or contract. The calculated length of supplied rope shall be within 1 % of the specified length. For each supplied rope, the actual length at the reeling tension or during manufacture shall be reported as an indicative value. The length of short sections intended as inserts shall be mutually agreed between the purchaser and the manufacturer. Adequate extra length shall be manufactured in order to prep