1、 Reference number ISO 29042-8:2011(E) ISO 2011INTERNATIONAL STANDARD ISO 29042-8 First edition 2011-01-15 Safety of machinery Evaluation of the emission of airborne hazardous substances Part 8: Room method for the measurement of the pollutant concentration parameter Scurit des machines valuation de
2、lmission de substances dangereuses vhicules par lair Partie 8: Mthode en salle dessai pour le mesurage du paramtre de concentration en polluant ISO 29042-8:2011(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobes licensing policy, this file may be printed or vie
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7、41 22 749 09 47 E-mail copyrightiso.org Web www.iso.org Published in Switzerland ii ISO 2011 All rights reservedISO 29042-8:2011(E) ISO 2011 All rights reserved iiiForeword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bod
8、ies). 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
9、 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. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives,
10、Part 2. The main task of technical committees is to prepare International Standards. 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 cast
11、ing a vote. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 29042-8 was prepared by Technical Committee ISO/TC 199, Safety of machinery. ISO 2904
12、2 consists of the following parts, under the general title Safety of machinery Evaluation of the emission of airborne hazardous substances: Part 1: Selection of test methods Part 2: Tracer gas method for the measurement of the emission rate of a given pollutant Part 3: Test bench method for the meas
13、urement of the emission rate of a given pollutant Part 4: Tracer method for the measurement of the capture efficiency of an exhaust system Part 5: Test bench method for the measurement of the separation efficiency by mass of air cleaning systems with unducted outlet Part 6: Test bench method for the
14、 measurement of the separation efficiency by mass of air cleaning systems with ducted outlet Part 7: Test bench method for the measurement of the pollutant concentration parameter Part 8: Room method for the measurement of the pollutant concentration parameter Part 9: Decontamination index ISO 29042
15、-8:2011(E) iv ISO 2011 All rights reservedIntroduction The structure of safety standards in the field of machinery is as follows: a) Type-A standards (basic safety standards) giving basic concepts, principles for design, and general aspects that can be applied to all machinery; b) Type-B standards (
16、generic safety standards) dealing with one safety aspect or one type of safeguard that can be used across a wide range of machinery: type-B1 standards on particular safety aspects (e.g. safety distances, surface temperature, noise); type-B2 standards on safeguards (e.g. two-hand controls, interlocki
17、ng devices, pressure-sensitive devices, guards); c) Type-C standards (machine safety standards) dealing with detailed safety requirements for a particular machine or group of machines. This document is a type-B standard as stated in ISO 12100. The requirements of this document can be supplemented or
18、 modified by a type-C standard. For machines which are covered by the scope of a type-C standard and which have been designed and built according to the requirements of that standard, the requirements of that type-C standard take precedence. ISO/TC 199 has a mandate in this area to produce type-A an
19、d type-B standards, which will allow verification of conformity with the essential safety requirements. ISO 29042-8 is based on EN 1093-9:1998, amended by Amendment 1:2008, published by the European Committee for Standardization (CEN). INTERNATIONAL STANDARD ISO 29042-8:2011(E) ISO 2011 All rights r
20、eserved 1Safety of machinery Evaluation of the emission of airborne hazardous substances Part 8: Room method for the measurement of the pollutant concentration parameter 1 Scope This part of ISO 29042 specifies a room method for the measurement of the pollutant concentration parameter of a given air
21、borne hazardous substance from machines, located in a test room and operating the machines under defined conditions. This method is applicable only to machines with a local exhaust ventilation with an air flow rate W500 m 3 /h and machines without recirculated air. Measurement of the pollutant conce
22、ntration parameter of a machine can serve for the: a) evaluation of the performance of a machine; b) evaluation of the improvement of the machine; c) comparison of machines within different groups of machines with the same intended use (such groups being defined by the function and materials process
23、ed); d) ranking of machines from the same group according to their pollutant concentration parameters; e) determination of the state of the art of a machine with respect to its pollutant concentration parameter. 2 Normative references The following referenced documents are indispensable for the appl
24、ication of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 2602, Statistical interpretation of test results Estimation of the mean Confidence interval ISO 12100, Safety
25、of machinery General principles for design Risk assessment and risk reduction 3 Terms and definitions For the purposes of this document, the terms and definitions given in ISO 12100 and the following apply. 3.1 pollutant concentration parameter of the room P crmeasured concentration of a given pollu
26、tant in defined position(s) near the machine ISO 29042-8:2011(E) 2 ISO 2011 All rights reservedNOTE For the purposes of this part of ISO 29042, the measurement points are at defined positions around the machine and the pollutant concentration parameter is the mean value of the measured concentration
27、s. 4 Principle The principle of the measurement method is to operate the machine with strong local exhaust ventilation (W500 m 3 /h) under controlled conditions in a test room and to measure pollutant concentrations at defined positions (see 5.2). The average concentration gives an indication of the
28、 emission of the machine and the standard deviation gives an indication of the dispersion of the pollutant emitted. 5 Measurement environment 5.1 Test room The tests are performed in rooms meeting the following criteria: no other source of the given pollutant shall be present in the test room; air f
29、low from all measurement points shall be directed to the local exhaust ventilation, for which tests shall be carried out, for example, using a smoke cartridge; size of the room shall be greater than 200 m 3 ; distances between the machine and the walls and ceiling shall be greater than 2 m; there sh
30、all be no return air from local exhaust ventilations; there shall be a properly designed supply of air to avoid cross-draughts in the zone of the measurement points. 5.2 Location of measurement points A minimum of four measurement points around the machine is necessary. Empirical techniques shall be
31、 used to ensure that the locations chosen are in areas of major emissions. The number and precise positions shall be specified in type-C standards. 6 Procedure 6.1 Operation of the machine The machine shall be operated according to its intended use. The stipulation of working procedures (e.g. feed r
32、ate), the tools used (e.g. type, tool speed) and the materials to be processed (e.g. nature, size) for each category of machine shall be specified in type-C standards. The machine shall be operated in accordance with the manufacturers instructions. 6.2 Measurement procedures The measurement procedur
33、es used for the pollutant concentration shall comply with the appropriate International Standard. The measurement shall take into account the normal operation cycles of the machine. ISO 29042-8:2011(E) ISO 2011 All rights reserved 3The measurement time shall be sufficient to collect concentration da
34、ta representative of the normal operational cycles of the machine. Detailed procedures shall be specified in the appropriate type-C standard for each type of machine. The machine should be started up and normal working conditions should be achieved before the measuring instruments are switched on. H
35、owever, care should be taken not to overlook unusually high emissions that can occur during start up. The exact time or number of cycles shall be specified in the type-C standards. At each measurement point, at least three measurements shall be made. 7 Expression of results For each sequential test
36、the mean value, t x , and standard deviation of the results for all measuring points shall be calculated. From these mean values the mean value, p x , and the one-sided 95 % confidence interval shall be calculated in accordance with ISO 2602. The pollutant concentration parameter of the room, P cr ,
37、 is the sum of the mean value, p x , and the one-sided 95 % confidence interval. 8 Test report The test report shall include at least the following information: a) reference to this part of ISO 29042 (ISO 29042-8:2011) and appropriate type-C standards; b) description of the machine tested (e.g. manu
38、facturer, model, type, version, design, size, year of manufacture, serial number) for the machine itself and for each additional piece of equipment; c) description of the test room, sketch with dimensions, and position of the machine; d) operational data during tests, including tools used with the m
39、achine and the material processed on the machine; e) description of the pollutant control equipment (e.g. manufacturer, model, type, version, design, size, year of manufacture, serial number, operational data, air flow rate); f) description of measurement procedures including the location of the mea
40、surement points and pollutant measured; g) measuring instruments used and their most recent calibration date; h) environmental data (temperature, humidity, atmospheric pressure); i) description of procedures used (e.g. list of standards) for concentration and flow rate measurements; j) number of tes
41、ts performed; k) measured concentrations at all specified points; l) pollutant concentration parameter of the room, P cr , mean value and 95 % confidence interval; m) comments on deviations from any relevant standards; n) test laboratory; ISO 29042-8:2011(E) 4 ISO 2011 All rights reservedo) name of the person responsible for carrying out the test; p) date(s) of testing; q) any additional comments. ISO 29042-8:2011(E) ICS 13.110 Price based on 4 pages ISO 2011 All rights reserved
