BS EN ISO 2307-2010 Fibre ropes Determination of certain physical and mechanical properties《纤维绳索 特定物理和机械性能的测定》.pdf

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1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN ISO 2307:2010Fibre ropes Determination ofcertain physical and mechanicalproperties (ISO 2307:2010)BS EN ISO 2307:2010 BRITISH STANDARDNational forewordThis British Standard

2、 is the UK implementation of EN ISO 2307:2010.It supersedes BS EN ISO 2307:2005 which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee TCI/77, Ropes and cordage and fishing nets.A list of organizations represented on this committee can beobtained on request to

3、 its secretary.This publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. BSI 2010ISBN 978 0 580 64421 4ICS 59.080.50Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard wa

4、s published under the authority of theStandards Policy and Strategy Committee on 31 October 2010.Amendments issued since publicationDate Text affectedEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 2307 August 2010 ICS 59.080.50 Supersedes EN ISO 2307:2005English Version Fibre ropes - Deter

5、mination of certain physical and mechanical properties (ISO 2307:2010) Cordages en fibres - Dtermination de certaines caractristiques physiques et mcaniques (ISO 2307:2010)Faserseile - Bestimmung einiger physikalischer und mechanischer Eigenschaften (ISO 2307:2010) This European Standard was approve

6、d by CEN on 14 August 2010. 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 st

7、andards may be obtained on application to the CEN 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 notifie

8、d to the CEN Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembou

9、rg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2010 CEN All rights

10、of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 2307:2010: EEN ISO 2307:2010 (E) 3 Foreword This document (EN ISO 2307:2010) has been prepared by Technical Committee ISO/TC 38 “Textiles“ in collaboration with Technical Committee CEN/TC 248 “T

11、extiles and textile products” the secretariat of which is held by BSI. 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 February 2011, and conflicting national standards shall be withdrawn at the l

12、atest by February 2011. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN ISO 2307:2005. According to the CE

13、N/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Li

14、thuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Endorsement notice The text of ISO 2307:2010 has been approved by CEN as a EN ISO 2307:2010 without any modification. BS EN ISO 2307:2010INTERNATIONAL ST

15、ANDARD ISO 2307:2010(E) ISO 2010 All rights reserved 1Fibre ropes Determination of certain physical and mechanical properties 1 Scope This International Standard specifies, for ropes of different kinds, a method of determining each of the following characteristics: linear density; lay length; braid

16、pitch; elongation; breaking force. The linear density, lay length and braided pitch are measured with the rope under a specified tension called the reference tension, as specified in Annex A. The elongation corresponds to the measured increase in length of the rope when the tension to which it is su

17、bjected is increased from an initial value (reference tension) to a value equal to 50 % of the minimum specified breaking strength of the rope. The breaking force is the maximum force registered (or reached) during a breaking test on the test piece, carried out on a tensile testing machine with cons

18、tant rate of traverse of the moving element. The breaking force values given in the tables of rope specifications are only valid when this type of testing machine is used. When it is not possible to test the whole section of rope, the method described in Annex B can be used, subject to agreement bet

19、ween the parties involved. This International Standard also provides a method for measuring water repellency, lubrication and finish content, and heat setting treatment, when requested by the customer. 2 Normative references The following referenced documents are indispensable for the application of

20、 this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 139, Textiles Standard atmospheres for conditioning and testing ISO 1968, Fibre ropes and cordage Vocabulary ISO 9554:20

21、10, Fibre ropes General specifications BS EN ISO 2307:2010ISO 2307:2010(E) 2 ISO 2010 All rights reserved3 Terms and definitions For the purposes of this document, the terms and definitions given in ISO 1968 and the following apply. 3.1 unspliced breaking force breaking force which is obtained by ap

22、plication of the method described in 9.7.2 3.2 spliced breaking force breaking force which is obtained by application of the method described in 9.7.3 4 Principle 4.1 Calculation of the linear density The linear density is obtained by measurement of the mass and the length, under a reference tension

23、, of a conditioned test piece. 4.2 Measurement of the lay length and braid pitch This measurement is taken at the time of application of the reference tension. 4.3 Measurement of the elongation of the rope This measurement is taken by comparing the lengths of a section of the test piece that has bee

24、n subjected successively to a) the reference tension, and b) a tension equal to 50 % of the minimum specified breaking force for the rope. 4.4 Measurement of the breaking force This measurement is carried out by increasing the tension in 4.3 b) to the breaking point. 5 Apparatus 5.1 Tensile testing

25、machine, accommodating the assumed breaking force of the rope, which allows a constant rate of traverse of the moving element, in accordance with 9.5, and measurement of the breaking force to an accuracy of 1 %. Different types of tensile testing machines may be used: pulley-type grip (“cors de chas

26、se” testing machine); testing machine with bollards for eye splices; wedge-grip testing machine. In the case of a “cors de chasse” tensile testing machine, the diameter of the pulleys or catches holding down the test pieces shall be equal to at least 10 times that of the rope being tested. In the ca

27、se of a testing machine with bollards, the diameter of the bollards passing through the eye-spliced test pieces shall be at least twice the diameter of the rope being tested. BS EN ISO 2307:2010BS EN ISO 2307:2010ISO 2307:2010(E) ISO 2010 All rights reserved 35.2 Balance, allowing measurement of mas

28、s to an accuracy of 1 %. 6 Sampling 6.1 Sample size When specified by the purchaser, a lot sample for acceptance testing shall be taken at random in accordance with 6.4. 6.2 Sample unit If required, test samples shall be taken from each shipping unit, in the lot in the number and the length required

29、 to perform the specified tests. The test samples shall be included in the delivered mass or length. As an alternative, the manufacturers production and inspection records may be used, if agreed upon between the purchaser and the manufacturer. 6.3 Composition of the batch to be sampled Samples shall

30、 be taken from a homogeneous batch, i.e. consisting of ropes of the same size and same dimensions and which have been subject to the same series of manufacturing operations and the same control procedure. 6.4 Selection of samples Take the number NSof samples at random from the batch in accordance wi

31、th Equation (1): S0,4NN= (1) where N is the batch size, expressed as the number of 220 m coils. When the calculated value of NSis not a whole number, the number obtained shall be rounded to the nearest whole number. EXAMPLE 27,5 and 30,35 are rounded to 28 and 30, respectively. Where NS10 and u 20 w

32、edge grip Man-made fibre ropes, reference number 20 bollard type 2 000a Natural fibre ropes all types 2 000 aIf the lay length is greater than 360 mm, Lushall be increased to 5 lay lengths, if possible. 7.2 Number of test pieces Take one test piece from each sample. 7.3 Taking the test pieces Take t

33、he test piece either from one end of the samples, or from the body of the samples if they are intended to be cut. Take all necessary steps to prevent unlaying. If necessary, remove slightly unlaid ends. 8 Conditioning Ropes shall be tested in the ambient atmosphere, except in cases of dispute, when

34、the test piece shall be placed in the atmosphere specified in ISO 139 for at least 48 h, immediately prior to testing. 9 Procedure 9.1 General For the measurement of force-elongation and breaking force, perform the procedures specified in 9.2 to 9.7 sequentially. For the linear density, perform the

35、procedures specified in 9.8. 9.2 Initial measurements Lay the test piece out straight on a flat surface by pressing with a slight force of the hand (not exceeding 20 % of the reference tension) (see Annex A). Make two “w” marks on the test piece, spaced symmetrically with regard to its mid-point, an

36、d at a distance apart of l0that is greater than 400 mm. In exceptional circumstances, when Lu24 but u 48 20 48 25 BS EN ISO 2307:2010ISO 2307:2010(E) 10 ISO 2010 All rights reserved12.2.3 Cutting the samples Detach the samples from the parent length by cutting cleanly across the rope with a sharp kn

37、ife at right angles to its longitudinal axis at the seizings, so that a suitably seized sample is obtained. 12.2.4 Sealing To prevent absorption by capillary action, seal the ends off so that the whipping is just covered. A suitable sealing material is pitch with a small amount of tar added to preve

38、nt cracking. Any other suitable sealing material may be used. 12.3 Procedure 12.3.1 First weighing Carefully weigh each specimen after whipping and sealing, and then place it in tap water at a temperature of (20 2) C, taking care that the specimen is fully submerged, if necessary by weighting down,

39、to a depth of 150 mm. Do not add water after the specimens have been submerged. In order to avoid the variations in mass due to atmospheric conditions, carry out the weighing immediately before immersion. Do not carry out the test until at least 24 h after the completion of manufacture of the rope.

40、12.3.2 Second weighing After a total immersion of 1 h, take the specimens out of the water and, before weighing, dry them in the following manner. Shake each specimen six times to remove the superfluous water and then roll the sample on blotting paper until no wetting of the paper is observed. Final

41、ly, draw the specimens three times through an absorbent cloth, such as towelling. Then weigh the specimens and resubmerge in the water. 12.3.3 Third weighing After a further 5h immersion period (making a total of 6 h in all), dry the specimens as described in 12.3.4 and weigh them. 12.3.4 Drying the

42、 specimens Thoroughly dry each specimen by gentle heating, if necessary. Take care that the sealing is not affected by the temperature, and that the temperature does not exceed 50 C. Dry the specimens to a mass slightly less than that obtained at the first weighing, so that, after exposure for at le

43、ast 4 h to normal room atmospheric conditions, the specimens shall return as nearly as possible to their original mass. 12.3.5 Fourth, fifth and sixth weighing Repeat the procedure described in 12.3.1 to 12.3.4 using the same specimens. 12.4 Results of tests Record the gain in mass in each of the sp

44、ecimens as a percentage of the original mass (first and fourth weighing), for the 1 h immersion (second and fifth weighing), and for the 6 h immersion (third and sixth weighing). BS EN ISO 2307:2010ISO 2307:2010(E) ISO 2010 All rights reserved 1113 Determination of lubrication and finish content The

45、 determination of lubrication and finish content applies to ropes made from natural fibres. 13.1 Reagents In this test, use reagents of laboratory reagent quality or equivalent. 13.2 Preparation of samples Unlay the rope into its component yarns. Select, at random, representative yarns from the unla

46、id rope. Form these into a hank weighing between 30 g and 50 g. 13.3 Determination of water content 13.3.1 Weigh the hank prepared in 13.2 to the nearest 10 mg. Designate this mass as m1. 13.3.2 Distil the water contained in the sample after the addition of a suitable quantity of petroleum ether, an

47、d condense it in a graduated receiver. 13.3.3 Continue the distillation until the condensate in the graduated receiver becomes constant. Measure the volume of water to the nearest 0,1 ml. Designate this volume as V. 13.4 Determination of lubrication and finish content 13.4.1 Transfer the hank of yar

48、n into a Soxhlet apparatus, and reflux with petroleum ether (boiling range 60 C to 80 C) until the extraction medium flows off in a colourless form, or, if colourless impregnating agents are present, until a specimen taken from the extract evaporates without residue. 13.4.2 Remove the hank from the

49、Soxhlet apparatus, and place it in an oven at a temperature of 120 C until all the solvent has evaporated. Transfer the hank to a desiccator until it has cooled to room temperature. 13.4.3 Re-weigh the sample to the nearest 10 mg. Designate this mass as m2. 13.5 Calculation of lubrication and finish content 13.5.1 Calculate the percentage of lubrication or finish using Equation (5): 121()100mVmLmV=(5) 13.5.2 Express the result to the nearest 1 %. 14 Determination of heat-setting on polyamide and polyester ropes To dete