NTERNATIONAL STANDARD TSO 5031 INTERNATIONAL ORGANIZATION FOR STANDARDIZATION MEKIyHAPOAHA OPrAHW3AWS IO CTAHIAPTW3ALWW.ORGANISATION INTERNATIONALE DE NORMALISATION Continuous mechanical handling equipment for loose bulk materials - Couplings and hose components used in pneumatic handling -- Safety code Engins de manutention continue pour produits en vrac -- Tuyauteries flexibles et raccords utilises en manutention pneumatique -- Code de sécurite First edition -- 1977-05-01 ANsl Internat Doc Sect MAY 1 9 1977 ISO 5031-1977 (E) UDC 621.867.81/.85 : 614.8 Ref. No. 1SO 5031-1977 (E) quirements. Price based on 1 page Copyright International Organization for Standardizatior FOREWORD ISO (the International Organization for Standardization) is a woridwide 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, 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 5031 was developed by Technical Committee ISO/TC 101, Continuous mechanical handling equipment, and was circulated to the member bodies in February 1976. It has been approved by the member bodies of the following countries : Germany South Africa, Rep. of Australia India Spain Austria Belgium Japan Sweden Bulgaria Mexico Turkey Czechoslovakia Netherlands United Kingdom Poland Finland U.S.S.R. France Romania Yugoslavia No member body expressed disapproval of the document. @ International Organization for Standardization, 1977 Printed in Switzerland Copyright International Organization for Standardizatior Not for ISO 5031-1977 (E) INTERNATIONAL STANDARD Continuous mechanical handling equipment for loose bulk materials --- Couplings and hose components used in pneumatic handling - Safety code 1 SCOPE 4.1.3 If the conveyed material and the nature of the hose utilized may generate static electricity in the hose, then a This International Standard specifies, in addition to the suitable conductor should be incorporated for its discharge general safety rules set out in Is0 1819, the special safety to the preceding and following components. As an excep rules for couplings and hose components used in the tion, for very short hoses, a shunt can be provided. pneumatic handling of loose bulk materials. 4.2 During the installation stage (layout, erection and entry into service) 2 FIELD OF APPLICATION The safety rules laid down in this International Standard 4.2.1 The coupling of hose to stationary piping of the apply regardless of the use for which the equipment is pneumatic handling system shall be made in an easily intended. These safety rules limit the supplier's responsibility accessible place and shall not require the use of a ladder or to continuous mechanical handling equipment properly any mobile or 'provisional scaffolding. The act of coupling shall be carried out at a convenient height, in principle not is fixed. exceeding 1,50 m. 4.2.2 When there are several hose coupling pipes at the 3 REFERENCES same place for the conveying of products of different IsO 1819, Continuous mechanical handling equipment natures, the mixing of which is prohibited or may be Safety code -- General rules. 1) dangerous, the couplings shall have different diameters or be of different types so as to prevent any coupling error. Is0 5028, Continuous mechanical handling equipment for loose bulk materials -- Pneumatic handling installations 4.2.3 If the material used for manufacture of the hose, Safety code. together with the characteristics of the conveyed material, allow generation of an accumulation of static electricity, 4 SPECIAL SAFETY RULES the hose shall be earthed. The const