ISO-10472-3-1997.pdf

A Reference number ISO 10472-3:1997(E) INTERNATIONAL STANDARD ISO 10472-3 First edition 1997-12-15 Safety requirements for industrial laundry machinery Part 3: Washing tunnel lines including component machines Exigences de sécurité pour les machines de blanchisserie industrielle Partie 3: Trains de lavage incluant les machines composantes Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/20/2007 06:31:13 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 10472-3:1997(E) © ISO 1997 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from the publisher. International Organization for Standardization Case postale 56 CH-1211 Genève 20 Switzerland Internetcentraliso.ch X.400c=ch; a=400net; p=iso; o=isocs; s=central Printed in Switzerland ii Contents Page 1Scope.1 2Normative references.1 3Definitions.2 4Hazards3 5Safety requirements and/or measures for the hazards identified in clause 4.5 5.1General 5 5.2Mechanical hazards5 5.2.1Interface between loading system and continuous tunnel washing machine .5 5.2.2Continuous tunnel washing machine.5 5.2.3Conveyors between washing machine and squeeze press or centrifugal extraction machine5 5.2.4Squeeze press.5 5.2.5Centrifugal extraction machine.6 5.2.6Transfer conveyor system .6 5.2.7Automatic transfer tumbler dryers .6 5.2.8Interface between tumbler dryers and unloading system7 5.3Electrical hazards7 5.4Thermal hazards.7 5.5Hazards generated by noise 7 5.6Hazards associated with materials and substances7 5.6.1Fire and explosion7 5.6.2Biological hazards.7 5.7Failure of control systems .8 5.8Hazards associated with complex installations.8 6Verification of safety requirements and/or measures.8 7Information concerning machine use.12 7.1Instruction handbook.12 7.2Warning signs.12 Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/20/2007 06:31:13 MDTNo reproduction or networking permitted without license from IHS -,-,- © ISOISO 10472-3:1997(E) iii 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, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. 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. International Standard ISO 10472-3 was prepared by Technical Committee ISO/TC 72, Textile machinery and machinery for dry-cleaning and industrial laundering, Subcommittee SC 5, Industrial laundry and dry-cleaning machinery. ISO 10472 consists of the following parts, under the general title Safety requirements for industrial laundry machinery: Part 1: Common requirements Part 2: Washing machines and washer-extractors Part 3: Washing tunnel lines including component machines Part 4: Air dryers Part 5: Flatwork ironers, feeders and folders Part 6: Ironing and fusing presses Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/20/2007 06:31:13 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 10472-3:1997(E)© ISO iv Introduction This part of ISO 10472 is intended to instruct the designer of industrial laundry machinery in a systematic manner, focusing on his particular type of machine, regarding the relevant essential safety requirements, and to suggest possible state-of-the-art safety solutions. The extent to which hazards are covered is indicated in the scope of this part of ISO 10472. In addition, machinery should comply as appropriate with ISO/TR 12100-1 and ISO/TR 12100-2 for hazards which are not specifically referred to in this part of ISO 10472. All examples given in this part of ISO 10472 represent the state of the art. Equivalent solutions are acceptable, provided they attain at least the same safety level. The designer is presumed to have taken into account all the provisions of ISO 10472-1 before considering this part of ISO 10472. Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/20/2007 06:31:13 MDTNo reproduction or networking permitted without license from IHS -,-,- INTERNATIONAL STANDARD © ISOISO 10472-3:1997(E) 1 Safety requirements for industrial laundry machinery Part 3: Washing tunnel lines including component machines 1Scope This part of ISO 10472 covers, together with ISO 10472-1, most significant hazards associated with washing tunnel lines including component machines such as: continuous tunnel washing machines; squeeze presses or centrifugal extraction machines; transfer conveyor systems; automatic transfer tumblers; loading or unloading system interfaces; access platform and ladders. This part of ISO 10472 does not cover particular hazards for continuous stand-alone washing lines for endless towels. This part of ISO 10472 does not cover the hazards caused by processing work which may create an explosive or flammable atmosphere inside the machine. This part of ISO 10472 complements the basic requirements laid down in ISO/TR 12100-1 and ISO/TR 12100-2. It also gives guidance to the designer on assessing the risks associated with the hazards (see EN 1050) and on selecting measures for attaining the required safety level. This part of ISO 10472 does not apply to ancillary equipment, e. g. chemical store and supply pumps, steam valves and supply pipework, vent systems, work feed systems and discharge systems and ducting to the atmosphere. 2Normative references The following standards contain provisions which, through reference in this text, constitute provisions of this part of ISO 10472. At the time of publication, the editions indicated were valid. All standards are subject to revision, and parties to agreement based on this part of ISO 10472 are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below. Members of IEC and ISO maintain registers of currently valid International Standards. ISO 6182-1:1993, Fire protection Automatic sprinkler systems Part 1: Requirements and test methods for sprinklers. ISO 10472-1:1997, Safety requirements for industrial laundry machinery Part 1: Common requirements. ISO/TR 12100-1:1992, Safety of machinery Basic concepts, general principles for design Part 1: Basic terminology, methodology. Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/20/2007 06:31:13 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 10472-3:1997(E)© ISO 2 ISO/TR 12100-2:1992, Safety of machinery Basic concepts, general principles for design Part 2: Technical principles and specifications. ISO 13849-1:1), Safety of machinery Safety-related parts of control systems Part 1: General principles for design. ISO 13852:1996, Safety of machinery Safety distances to prevent danger zones being reached by the upper limbs. ISO 14119:1), Safety of machinery Interlocking devices associated with guards Principles for design and selection. EN 616:1), Continuous handling equipment and systems Common safety requirements for design, manufacturing, erection and commissioning stages. EN 620:1), Continuous handling equipment and systems Equipment for mechanical handling both unit loads and bulk materials Special safety requirements for design, manufacturing, erection and commissioning stages. EN 746-2:1997, Industrial thermoprocessing equipment Part 2: Safety requirements for combustion and fuel handling systems. EN 953:1997, Safety of machinery General requirements for the design and construction of guards (fixed, movable). EN 1037:1995, Safety of machinery Prevention of unexpected start-up. EN 1050:1996, Safety of machinery Risk assessment. EN 1760-1:1997, Safety of machinery Pressure sensitive protective devices Part 1: General principles for the design and testing of pressure sensing mats and floors. EN 1760-2:1), Safety of machinery Pressure sensitive protective devices Part 2: General principles for the design and testing of pressure sensitive edges and pressure sensitive bars. EN 50100-1:1), Safety of machinery Electro-sensitive protective devices Part 1: General requirements and tests. EN 60204-1:1992, Safety of machinery Electrical equipment of machines Part 1: General requirements. IEC 204-1:1992, modified 3Definitions For the purposes of this part of ISO 10472, the following definitions apply: 3.1 washing tunnel line Complete integrated system of linked machines for the washing, moisture extraction and drying or disentangling of discrete batches of textile fabric, including all necessary equipment for supply of water, steam, gas, electricity and chemicals. 3.2 continuous tunnel washing machine Machine designed to wash items in successive loads as a continuous process. NOTE This machine may consist of one cage rotating around a longitudinal axis and subdivided into separate compartments, or several cages or several machines linked by means of a transfer system. 1) To be published. Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/20/2007 06:31:13 MDTNo reproduction or networking permitted without license from IHS -,-,- © ISOISO 10472-3:1997(E) 3 3.3 squeeze press Machine for the mechanical extraction of moisture from textile fabrics by the application of pressure. NOTE It is designed to receive loads of textile material automatically from a tunnel washing machine and to remove moisture by applying pressure (e. g. by a flexible membrane). Such a machine may be arranged with one or two pressure stations where the pressure may be applied hydraulically, mechanically or pneumatically. 3.4 centrifugal extraction machine Machine containing a perforated cage to and from which successive loads are transferred and within which the loads are subjected to a centrifugal force due to the rotation of the cage for the purpose of extracting moisture. 3.5 transfer conveyor system Handling equipment for conveying loads from moisture extraction machines to tumble dryers to provide automatically controlled storage and handling between washing and drying processes. 3.6 automatic transfer tumble dryer Machine for moisture extraction from a load of damp textile material by tumbling in a rotating cage in an atmosphere of hot air. NOTE It may be designed on the pass-through principle with automatic load and discharge doors at opposite ends, or the tilting principle with load and discharge at the same end. 3.7 loading or unloading system Handling equipment employed to automatically feed loads to the tunnel washing machine, and transport loads from the tumble dryers to subsequent processes. 3.8 interface Area where a load is transferred from the loading system into the tunnel washing machine or from the tumble dryer to the unloading system. 3.9 soiled hospital work Work from hospital wards, nursing homes and operating theatres which may be fouled or contaminated but not infected. 4Hazards 4.1General The hazards common to most industrial laundry machinery are listed in ISO 10472-1. Significant particular hazards found in washing tunnel lines including component machines are listed in 4.2 to 4.8. 4.2Mechanical hazards 4.2.1Interface between loading system and continuous tunnel washing machine: crushing, shearing, impact, drawing-in between loading system or load and entrance of washing machine; falling into the loading chute. Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/20/2007 06:31:13 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 10472-3:1997(E)© ISO 4 4.2.2Continuous tunnel washing machine: drawing-in or trapping between the rotating cage or drive mechanism and the machine structure, in particular between rotating cage and support rollers; shearing between protruding items of the cage and the structure and trapping by the protruding items; trapping within the machine due to entry for the purpose of clearing tangled work. 4.2.3Conveyors between washing machine and squeeze press or centrifugal extraction machine: drawing-in or trapping between conveyor belt and rollers or fixed elements of the conveyors. 4.2.4Squeeze press: crushing and shearing between the ram, including membrane, and fixed elements of the squeeze press. 4.2.5Centrifugal extraction machine: drawing-in by the rotating cage; crushing and shearing by tilting; impact by ejected parts of the load or cage caused by out-of-balance loading or overspeed. 4.2.6Transfer conveyor system: crushing and shearing between the moving elements of the transfer conveyor system and fixed parts, including squeeze press, tumbler frame. 4.2.7Automatic transfer tumbler: crushing and shearing between the tumble dryer doors and frame. 4.2.8Interface between tumble dryer and unloading system: crushing and trapping between tumble dryer and unloading system. 4.3Electrical hazards See 10472-1:1997, 4.2 4.4Thermal hazards See ISO 10472-1:1997, 4.3. 4.5Hazards generated by noise Noise emitted by tumble dryer fan and associated ducting, ducting within machine or a heat recovery and/or filtration system may cause a hazard. See ISO 10472-1:1997, 4.4. 4.6Hazards associated with materials and substances 4.6.1Fire and explosion. 4.6.2Biological hazards 4.6.2.1Hazards due to soiled hospital work. Copyright International Organization for Standar