NTERNATIONAL STANDARD(TSO 3155 INTERNATIONAL ORGANIZATION FOR STANDARDIZATION·MEKIYHAPOAHA OPTAHM3ALMH HIO CTAHIAPTH3ALIHM.ORGANISATION INTERNATIONALE DE NORMALISATION Stranded wire ropes for mine hoisting -- Fibre components -- Characteristics and tests Cables d'extraction toronnes utilises dans les mines -- Composants textiles - Caracteristiques et essais First edition - 1976-04-15 ISO 3155-1976 (E) UDC 677.72.004.12 : 622.6 Ref.No. IS0 3155-1976 (E) Descriptors : mining equipment, mine cables, wire ropes, components, specifications, tests, characteristics. Price based on 2 pages Not for Resale FOREWORD IsO (the International 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 Technical Committees. Every Member Body interested in a subject for which a Technical 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 International Standards by the ISO Council. International Standard ISO 3155 was drawn up by Technical Committee ISO/TC 82, Mining, and circulated to the Member Bodies in August 1973. It has been approved by the Member Bodies of the following countries : Austria Germany Spain Belgium Hungary Sweden Bulgaria India Thaitand Chile Ireland Turkey Czechoslovakia Netherlands United Kingdom Poland Egypt, Arab Rep. of Yugoslavia France Romania The Member Bodies of the following countries expressed disapproval of the document on technical grounds : South Africa, Rep. of @ International Organization for Standardization, 1976 Printed In Switzerland itted without license from IHS Not for Resale ISO 3155-1976 (E) INTERNATIONAL STANDARD Stranded wire ropes for mine hoisting -- Fibre components -- Characteristics and tests 1 SCOPE AND FIELD OF APPLICATION b) In the case of yarns to which lubricants and impregnating compounds have already been added This International Standard specifies the nature and during the manufacturing process, the admissible upper properties of the fibre components for stranded wire ropes limit is 18 %, the admissible lower limit 12 %. for mine hoisting, together with the corresponding test methods. This shall be checked in accordance with 5.3. 2 GENERAL REQUIREMENTS 5 METHODS OF TEST Fibre cores, or steel cores with fibre inserts, or fibre covers 5.1 Determination of water-soluble acids shall be of a size sufficient to give the strands of the rope solid and adequate support and to prevent adjacent strands 5.1.1 Procedure of a new rope in no-load condition from direct contact. Fibre cores shall be firmly stranded and shalt consist of at Weigh, to the nearest 0,1 g, a sample of mass 20 to 30 g of least three strands.The lay of the strands in the fibre core the full cross-section to be tested. Unravel the sample ano shall be opposite to the lay of the yarns in the strand. transfer it to a Soxhlet apparatus. Boil for 30 min with 100 ml of distilled water. Filter through a filter paper and 3 MATERIAL wash the residue with three successive lots of hot distilled water. After washing, the total quantity of the water Fibre cores, fibre covers and fibre inserts shall be made extract shal! not exceed 175 ml. from long hard fibre of the following types : Add a few drops of phenoiphthalein to the extract and Sisal (Agava sisalana Pervine) and titrate with 0,1 N sodium or potassium hydroxide solution to a permanent colour. Manila (Abaca) (Musa textilis Nee) Admixture of any other or of old fibres is prohibited. 5.1.2 Expression of results Suitable synthetic fibre may be used by agreement between The water-solubie acids Z, in millilitres per 100 g, is given purchaser and supplier. by the formula : 10 × V Z : 4 PR