Document pBDRJ9OOjzypbNqL78ZZ45z8d

AIA Health and Safety Publication Recommended Control Procedure No.l0(RCP10) ASBESTOS-CONTAINING FRICTION MATERIALS Application and Servicing HWBUI0013300 ' <...).. ASBESTOS INTERNATIONAL ASSOCIATION INTRODUCTION The prime object of this Association is to encourage and facilitate the endeavours of its members to eliminate risks to health, occupational and environmental, arising from the use of asbestos. Many countries have official regulations and guidelines which producers, manufacturers and consumers are required to observe in order to prevent such risks occurring, and progressively the standards stipulated are being achieved. In the course of applying these requirements much practical experience has been acquired and the interchange of such knowledge and the maximising of control techniques is seen as the principal means by which our members can attain our prime objective. There are still areas where official guidance has not been provided, and others where the problems of applying statutory requirements are new and may appear formidable. The Asbestos International Association believes that it has an opportunity and a responsibility to provide what help it can to those concerned with this problem from the wide experience of its members and has decided therefore to produce a series of advisory publications for this purpose. We wish to remind readers of two important points. First, in considering any recommendations in the AIA publications these should be related to the specific legal requirements in the country concerned. It is clearly not possible in such publications to relate the recommendations in every respect to the specific detailed regulations in each state. Nevertheless, the greater part of existing laws on the subject calls for similar forms of control and where no official regulation exists we advise that action should be based on the recommendation of the ILO meetings of experts on the safe use of asbestos, in December 1973 and October 1981. Secondly, the development of techniques of control is a continuous process, and we hope that the efforts we are undertaking will help to accelerate the process. Techniques which are recommended have reached their present stage as a result of interchange of ideas and practical experience between international experts in the asbestos industry, plant manufacturers, government agencies and many others. It will certainly be necessary regularly to up-date and amend these publications in the light of new ideas and criticisms. All such will be welcomed and will be given full consideration during revision stages. Asbestos International Association 68 Gloucester Place, London W1H 3HL, England Telephone: 01 -486 3528 Telex: 298618INTAG 14 February 1983 Asbestos-containing Friction Materials - Application and Servicing CONTENTS 1. Applications of these recommendations 2. Products covered by these recommendations 3. Basic requirements for working with asbestos-containing friction material 4. Operations covered by these recommendations 5. Recommended procedure for avoiding creation of dust in the use of asbestos-containing friction materials 6. Waste disposal 7. General HWBUI0013301 AIA Health and Safety Publication Recommended Control Procedure No.lO(RCP 10) ASBESTOS-CONTAINING FRICTION MATERIALS Application and Servicing 1. Application of these recommendations These recommendations are intended for the guidance of those engaged in the assembly, application and servicing of friction materials containing asbestos fibre. For the manufacture of such materials other procedures are applicable and controls recommended for manufacturers may be found in relevant AIA publications. 2. Products covered by these recommendations Asbestos-containing friction material (moulded and woven} such as: Brake lining materials in roll, strip or sheet form. Brake blocks. Brake liners. Brake lining segments. Disc brake pads. Clutch facings. Automotive transmission discs and band liners. Industrial brake linings and clutch facings. The only occasions when such fibres can be released into the atmosphere in significant quantities occur when high speed cutting, grinding or drilling are carried out without the provision of proper controls as described hereunder. 3.3 Only a very small percentage of asbestos fibre can be traced in the wear products of brake linings. Temperature, pressure and 'micro-milling' during braking operations convert the asbestos fibre into a non-crystalline amorphous material which represents no hazard. In case of doubt, concentrations of dust should be measured and analysed in order to ensure that they do not exceed the values prescribed by the Authorities. 4. Operations covered by the recommendations Handling and machining of asbestoscontaining friction material in the automotive and brake and clutch industry and in the maintenance and repair of brake and clutch assemblies, such as: grinding cutting drilling sawing fitting machining or linishing* cleaning 'linishing' is a process in which a fine grinding finish is applied 5. Recommended procedure for avoiding creation of dust in the use of asbestos-containing friction material 5.1 Remember the three main rules for eliminating any risks: First: avoid creating dust and use hand tools or slow running fools which only produce coarse dust or chips; do not normally use tools which cut by abrading the material, thus generating inhalable dust; Second: when it is necessary to use abrasive or high-speed tools, these should be fitted with dust extraction equipment suitable for use with asbestos; Third: use local vacuum cleaning equipment (approved for use with asbestos dust) to collect dust and chips; or sweep using a dust suppresant. 3. Basic requirements for working with asbestos-containing friction material 3.1 Harmful effects on health from working with asbestos-containing friction materials can only result from the inhalation of asbestos respirable fine dust. 3.2 In friction materials the asbestos content is variable, generally from 30% to 60%. In all cases the asbestos fibres are locked in the binder and the product does not release any free respirable fibres under normal handling conditions. 5.2 Handling, transporting, warehousing of new friction materials. Asbestoscontaining friction materials supplied in boxed sets should be de-dusted by the manufacturer before packing, and therefore should not require special precautions in handling. When they are delivered in bulk quantities abrasion may result. Dust should be removed by vacuuming. 5.3 Work under factory or workshop conditions. 5.3.1 Approved dust extraction equipment should be fitted to every cutting, drilling or grinding machine :c eliminate dust and loose swarf creatsc cy such operations. High velocity, low volume equipment should be used fc portable tools: industrial vacuum HWBUI0013302 cleaners are adaptable for such purposes. Low-velocity, high volume systems are generally most suitable for fixed machine applications. 5.3.4 Working-areas should be kept free from dust by means of a cleaning attachment available for use with the installed exhaust ventilating system, or by using portable industrial vacuum cleaning machines suitable for use with asbestos materials. If these are not available, floors should be thoroughly wetted and/or spread with damp sawdust before sweeping. 5.3.5 There will be some operations such as the maintenance of dust filters, etc., where it is necessary for personnel to be provided with appropriate individual protective equipment. 5.4 Do-it-yourself operations Simple replacement of brake shoes or disc brakes is unlikely to be a source of dust emission. The do-it-yourselfer is unlikely to have access to equipment as described in 5.3.2, but wear products can satisfactorily be removed from brake assemblies with a damp cloth. It is generally preferable, in the interests of road safety, for work on braking systems to be undertaken by properly qualified and equipped operators. 5.3.2 During application friction material dust occurs and accumulates in brake and clutch assemblies. When removing worn friction material, remove the accumulated dust from the brake assemblies with an industrial vacuum cleaner or washing equipment, if such equipment is not available, dust must be removed with a damp cloth. Never use compressed air or dry brushing. Certain industrial vacuum equipment manufacturers have developed apparatus specially designed for use in the removal of worn brake linings and the cleaning out of brake drums. Such equipment may be of interest to organisations where this work is regularly carried out. Further details can be obtained from Member Associations of the AIA. 5.3.3 Loose swarf and dust should be removed from the work place by vacuum cleaning. Where this is not possible the material should be thoroughly wetted before removal. 5.3.6 Suitable equipment: dust extraction vacuum cleaning specialised turning equipment personal protective equipment Full details of suppliers of suitable equipment which has been tested for use with products together with advice on the design and specification of such equipment may be obtained from AIA or from the Association's members. They will be pleased to supply names and addresses of national suppliers of such equipment. 6. Waste Disposal 6.1 Loose swarf and dust collected from fabrication processes should be collected for disposal in a controlled manner and in accordance with regulations where these exist. Strong plastic bags are a suitable form of impermeable container (see RCP3). 6.2 Broken and worn linings will not normally produce harmful quantities of dust. However, to avoid unnecessary anxiety (and in some countries to comply with legal requirements), where such waste materials occur in quantity they should be collected and disposed of in a controlled manner, and in accordance with regulations where these exist (see RCP3). 7. General Further information on any aspect of safe working with asbestos-containing friction material will gladly be supplied by the Asbestos International Association or by any of the Association members whose addresses are contained elsewhere in this publication. * HWBUI0013303 NOTES t HWBUI0013304 Asbestos International Association Member Associations ARGENTINA Asociacion Argentina de Fabrieantesde Fibrocemento (AAFF), Libertad 836 -- 3p of 55, 1012 Buenos Aires. Telephone: AUSTRALIA South Pacific Asbestos Association,* 10th Floor, 39-41 York Street, Sydney 2000, NSW. Telephone: 232 7004 Telex: 22467 `Includes Indonesia, Malaysia, New Zealand and Singapore AUSTRIA Verein der Oesterreichischen Faserzementfabrikanten, c/o Eternit-Werke Ludwig Hatschek, Postfach 50,4840 Vdcklabruck. Telephone: 07672/25 01 Telex: 026/608 or 026/500 BENELUX (Belgium-Netherlands-Luxembourg) Benelux Asbestos Information Committee (CIAB/CVAB), Boite 32, Boulevard E. Jacqmain 162, B1000 Brussels. Telephone: (02) 218-6329 and (02)219-2980 Telex: 21 696 CANADA Institute of Occupational & Environmental Health (Association), AMAQ, Suite 320, 580, Grande Allde Est., Qudbec, Qub, GIR 2K2. Telephone: (418) 529-8168 Telex: 5560565 CYPRUS Cyprus Asbestos Association, c/o Cyprus Asbestos Mines Ltd., Amiandos. Telephone: 053-15-355 Telex: 2083 DENMARK Danish Asbestos Information Group, c/o Dansk Eternit Fabrik A/S, P.O. Box 763, DK-9100 Aalborg. Telephone: (8) 12 n 22 Telex: 69724 FINLAND Finnish Asbestos Information Group, c/o Oy Partek Ab, Covering Materials, SF. 08680, Muijala. Telephone: 35812 35222 Telex: 1415 FRANCE Association Frangaisede I'Amiante, 10 Rue de la Pepinibre. 75008 Paris Telephone: 562.88.27 GERMANY Wirtschaftsverband Asbestzement e.V., Postfach 110620,1000 Berlin 11. Telephone: 030-3485-250 Telex: 018-1640 Wirtschaftsverband Asbest e.V., Hofheimer Strasse 21, 6380, Bad Homburg 1. Telephone: 06172 301112 Telex: 41814B GREECE Hellenic Asbestos & Asbestos Cement Association, 8 Omirou Street, Athens (133). Telephone: 32 31 244 Telex: 215871 INDIA Asbestos Information Centre, 401 Padma Palace, 86 Nehru Place, New Delhi-110019. Telephone: 682568 IRELAND Irish Asbestos Council, 6 South Leinster Street, Dublin 2. Telephone: 01-763974 Telex: 24281 and 25369 ISRAEL Israeli Asbestos Users Association, P.O. Box 32, Nahariya22100. Telephone: 04-924141 Telex: 46294 ITALY Centro Nazionale Amianto, Corso Europa 12, 20122 Milan. Telephone: 02/5456211-5456339 Telex: 314237 JAPAN AIA Committee, Japan Asbestos Association, 8-10-7 Ginza, Chuo-ku, Tokyo. Telephone: 03-571-8509 MEXICO Asociacion Mexicans de Fabricantes de Productos de Asbesto Cemento A.C., Paseo de la Reforma No. 30,2 piso, Mexico 1, D.F. Telephone: 566-90-06 NIGERIA Nigerian Asbestos Association, c/o Nigerite Ltd., PMB 21032, Ikeja, Lagos State. Telephone: 900602 Telex: 26243 NORWAY Norwegian Asbestos Information Group, c/o C. Bagge's Asbestkompani AS, Industriveien 15, Postboks 146, 2020 Skedsmokorset. Telephone: 02-746710 Telex: 16278 REPUBLIC OF SOUTH AFRICA South African Asbestos Producers Advisory Committee, P.O. Box 10505, Johannesburg 2000. Telephone: 395458 Telex: 422514 and 422420 SPAIN Asociacion Espanola de Fabricantes de Productos de Amianto, Ma Diaz de Haro 38, Apartado 558, Bilbao (10). Telephone: 437 3705 Telex: 32125 Asociacion de Fabricantes de Productos de Amianto-Cemento, Rafael Calvo 18, Madrid (10). Telephone: 4197 488 Telex: 44295 SWEDEN Swedish Asbestos Information Group, Svenska Bromsbandsfabriken AB., 880 20 Langsele. Telephone: 0620-217 50 Telex: 6151 SWITZERLAND Arbeitskreis Asbest, c/o Stiffler & Nater, Dufour Strasse 101,8034 Zurich. UNITED KINGDOM Asbestos Information Centre, Sackville House, 40 Piccadilly, London W1V9PA. Telephone: 01 -439 9231/2/3 Telex: 21120 ref. 2526 U.S.A. Asbestos Information Association/NA, 1745 Jefferson Davis Highway, Crystal Square, Suite 509, Arlington, Virginia 22202. Telephone: (703) 9791150 Asbestos International Association 68 Gloucester Place, London, England, W1H 3HL. Telephone: 01-486 3526 Telex: 298618 INTAG Reprint 7 January 1983 HWBUI0013305 I Publications by the Asbestos international Association Recommended Control Procedures -- RCP1 The Control of Asbestos Dust | -- RCP2 Asbestos Cement Products ! -- Insert -- Catalogue of Tools for working with asbestos 1 cement products on site { -- RCP3 Asbestos Waste Materials. j -- RCP4 Asbestos Fibres. Packaging. j Handling and Transportation. -- RCP5 Asbestos Fibres, Bag Opening. j -- RCP6 Asbestos Textile Products -- Manufacture. -- RCP7 Asbestos Textile Products -- Fabrication and Use. -- RCP8 Repair and Removal of Asbestos Insulation. -- RCP9 Protection equipment for use in the manufacture and use of Asbestos Products. -- RCP10 Asbestos Containing Friction Material, Application and Servicing. Recommended Technical Methods -- RTM1 Reference Method for the determination of Airborne Asbestos Fibre concentrations at Workplaces by Light Microscopy (Membrane Filter Method). -- RTM2 Reference Method for the determination of Airborne Asbestos Fibres by Scanning Electron Microscopy.* `Not yet printed. HWBUI0013306