8456 International Standard (TSO ANsi Internrt Doc Secl Storage equipment for loose bulk materials Safety code Equipements de stockage de produits en vrac - Code de sécurité First edition - 1985-12-01 UDC 624.954 : 614.8 Ref. No. ISO 8456-1985 (E) ISO 8456-1985 (E) Descriptors : bulk products, handling equipment, materials handling equipment, storage equipment, specifications, safety requirements. Price based on 4 pages Copyright International Organization for Standardization efrom IHS Not for Resale 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 carried 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, govern- mental 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. They are approved in accordance with ISO procedures requiring at least 75 % approval by the member bodies voting. International Standard iSO 8456 was prepared by Technical Committee ISO/TC 101 Continuous mechanical handling equipment. It is based on the work carried out by "Section Il Continuous handling" of the European Mechanical Handling Confedera- tion (FEM). Users should note that all International Standards undergo revision from time to time and that any reference made herein to any other Internationat Standard implies its latest edition, untess otherwise stated. Copyright International Organization for Standardization fromIHS ISO 8456-1985 (E) INTERNATIONAL STANDARD Storage equipment for loose bulk materials : Safety code 5 Special safety rules Scope 1 This International Standard gives, as an adjunct to the general 5.1 At the construction stage (design and safety rules laid down in iso 1819, special safety rules for manufacture) storage equipment for loose bulk materials, such as hoppers, silos, storage bins and bunkers, and bin gates. 5.1.1 Hoppers and silos 2 Field of application 5.1.1.1 General The safety rules laid down in this International Standard apply 5.1.1.1.1 Components shall be determined so as to be able to regardless of the use for which the equipment is intended. withstand the loads (dead weights, materials stored, additional superstructures and supported machinery, and occasional These safety rules limit the supplier's responsibility to con- operating overloads) expected under normal operating con- tinuous mechanical handling equipment proper, excluding the ditions, the climatic and geological conditions having been structures to which such equipment is affixed, unless these are agreed upon between the contracting parties. Static and built into the storage equipment. dynamic criteria shall be considered. Stability shall be ensured under all load conditions defined in the contract. 3 References Iso 1819, Continuous mechanical handling equipment 5.1.1.1.2 If the stored materials are transported away by Safety code -- General rules. vehicles, the minimum distances between the substructures and the vehicles shall be the following : Iso 7149, Continuous handling equipment -- Safety code - Special rules. ' a) 500 mm for fixed, isolated obstacles (posts, pillars columns, corners of building, etc.) of less than 300 mm measured in the operating direction of the appliance; General rules b) 700 mm for continuous, fixed obstacles (walls) warehouses, quays, buildings, etc.) and posts and pillars of The construction and operation of storage equipment for loose 300 mm or more. bulk materials, such as hoppers, silos, storage bins and bunkers, and bin gates, shall meet These minimum distances are not obligatory in the case of zones which are no