1、 Reference number ISO 29042-7:2010(E) ISO 2010INTERNATIONAL STANDARD ISO 29042-7 First edition 2010-03-15 Safety of machinery Evaluation of the emission of airborne hazardous substances Part 7: Test bench method for the measurement of the pollutant concentration parameter Scurit des machines valuati
2、on de lmission de substances dangereuses vhicules par lair Partie 7: Mthode sur banc dessai pour le mesurage du paramtre de concentration en polluant ISO 29042-7:2010(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobes licensing policy, this file may be printed
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7、Fax + 41 22 749 09 47 E-mail copyrightiso.org Web www.iso.org Published in Switzerland ii ISO 2010 All rights reservedISO 29042-7:2010(E) ISO 2010 All rights reserved iiiForeword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO memb
8、er 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, government
9、al 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. International Standards are drafted in accordance with the rules given in the ISO/IEC Direct
10、ives, 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 bodie
11、s casting 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 29042-7 was prepared by Technical Committee ISO/TC 199, Safety of machinery. IS
12、O 29042 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 th
13、e measurement 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 f
14、or the 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 A room method for the measurement of the pollutant concentration parameter and a decontamination index are to form
15、 the subjects of future parts 8 and 9. ISO 29042-7:2010(E) iv ISO 2010 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
16、 applied to all machinery; b) type-B standards (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 o
17、n safeguards (e.g. two-hand controls, interlocking 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 part of ISO 29042 is a type-B standard as stated in ISO 12100.
18、 The requirements of this document can be supplemented or 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. I
19、SO/TC 199 has a mandate in this area to produce type-A and type-B standards, which will allow verification of conformity with the essential safety requirements. ISO 29042-7 is based on EN 1093-8:1998, amended by Amendment 1:2008, published by the European Committee for Standardization (CEN). INTERNA
20、TIONAL STANDARD ISO 29042-7:2010(E) ISO 2010 All rights reserved 1Safety of machinery Evaluation of the emission of airborne hazardous substances Part 7: Test bench method for the measurement of the pollutant concentration parameter 1 Scope This part of ISO 29042 specifies a test bench method for th
21、e measurement of the pollutant concentration parameter of a given airborne hazardous substance from a machine, using a test bench under specified operating conditions. The method is applicable only to the determination of emitted gases, vapours and respirable particles. It is intended that whenever
22、possible the emission rate be determined in a test bench (see ISO 29042-3). Measurement of the pollutant concentration parameter of a machine can serve for the a) evaluation of the performance of the machine, b) evaluation of the improvement of the machine, c) comparison of machines within different
23、 groups of machines with the same intended use (such groups being defined by the function and materials processed), d) ranking of machines from the same group according to their pollutant concentration parameters, and e) determination of the state of the art of a machine with respect to its pollutan
24、t concentration parameter. 2 Normative references The following referenced documents are indispensable for the application 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.
25、 ISO 2602, Statistical interpretation of test results Estimation of the mean Confidence interval ISO 12100, Safety of machinery General principles for design Risk assessment and risk reduction ISO 29042-7:2010(E) 2 ISO 2010 All rights reserved3 Terms and definitions For the purposes of this document
26、, the terms and definitions given in ISO 12100 and the following apply. 3.1 pollutant concentration parameter of the cabin P ccmeasured concentration of a given pollutant in defined position(s) near the machine NOTE For the purposes of this part of ISO 29042, one measurement plane is used, preferabl
27、y in the exhaust duct. 4 Principle The principle of the measurement method is to operate machines under controlled conditions in a test bench and measure the pollutant concentration at a well-defined location (see 5.2) for a specified exhaust air flow rate of the test bench. This concentration gives
28、 an indication of the emission from the machine. 5 Test bench 5.1 Description of the test bench The test bench consists of a test cabin with a funnel and a subsequent air mover (see Figure 1). The air mover produces an air flow in the test cabin from the inlet towards the funnel. The test cabin shal
29、l be equipped with a permeable inlet (for example, macroporous filter material, perforated plastic foil or plate) in order to obtain a uniform air flow across the inlet and to avoid escape of the pollutant from the test cabin. The test cabin exhaust flow rate shall be specified in type-C standards.
30、It shall be controlled in order to remain constant. The cross-section of the test cabin (form and dimensions) shall be chosen according to the size of the machine. The maximum cross-sectional area of the machine shall not exceed a fifth of the cross-sectional area of the test cabin. The test cabin s
31、hall be long enough to accommodate the machine and the operator, with the emission sources as close to the specified location as practicable, according to Figure 1. The machine shall be positioned in the test cabin such that the source of the pollutant emitted from the machine is in the area of the
32、longitudinal axis of the test cabin at a distance, l 1 , from the beginning of the funnel and a distance, l 0 , from the inlet, as shown in Figure 1. 5.2 Location of measurement planes The concentration of the pollutant shall be measured at measurement plane 1 in the exhaust duct. Alternatively, if
33、it is necessary to use measuring instruments having larger sampling heads and/or suitable only for lower air velocities, then measurement plane 2, located in the area of the middle axis of the funnel as near as possible to the exhaust duct, may be used. ISO 29042-7:2010(E) ISO 2010 All rights reserv
34、ed 3W/H W 0,66 l 1 W 0,5 A cl 3W 5d u 1,5 u 2,0 A c l 4W 3d h u 0,66H u 2,0 m l 0W 0,5 A c l 2 W 0,5 A cu A cKey 1 test cabin A c cross-section of test cabin 2 emission source ddiameter of outlet 3 funnel Hheight of test cabin 4 measurement plane 2 hheight of emission source 5 exhaust duct Llength o
35、f test cabin 6 measurement plane 1 (preferred) Q E cabin exhaust flow rate 7 air mover Wwidth of test cabin NOTE Generally, the emission source cannot be considered as a point, but as a zone including several sources. Figure 1 Test bench (schematic layout) 6 Procedure 6.1 Operation of machine The ma
36、chine shall be operated according to its intended use. The stipulation of working procedures, the tools used and the materials to be processed with specified categories of machines will be defined in type-C standards. If the machine is equipped with its own separator, re-circulating air towards the
37、working zone depending on the intended use, the outlet of the separator shall be located in the test cabin so as to ensure that the pollutant from this secondary source reaches the measurement plane. The machine shall be operated in accordance with the manufacturers instructions. When the machine is
38、 provided with a pollutant control system this shall be adjusted according to these instructions. Tests shall not be carried out unless manufacturers specifications for operating the pollutant control system are available. ISO 29042-7:2010(E) 4 ISO 2010 All rights reserved6.2 Measurement procedures
39、The measurement procedures used for the pollutant concentration shall comply with the appropriate International Standards. Detailed procedures shall be specified in the appropriate type-C standards for each type of machine. The measurement shall take into account the normal operational cycles of the
40、 machine. The measurement time shall be sufficient to enable the collection of concentration data representative of the normal operational cycles of the machine. At least three tests shall be performed. 7 Expression of results The pollutant concentration parameter of the cabin, P cc , is the sum of
41、the mean value and the 95 % confidence interval according to ISO 2602. 8 Test report The test report shall include at least the following information: a) reference to this part of ISO 29042 (“ISO 29042-7:2010”) and any associated type-C standards; b) description of the machine tested (manufacturer,
42、model, type, version, design, size, year of manufacture, serial number, etc.) for the machine itself and for each additional piece of equipment; c) operational data during tests, including tools used with the machine and the material processed on the machine; d) description of the pollutant control
43、system (manufacturer, model, type, version, design, size, year of manufacture, serial number, operational data, etc.); e) test cabin exhaust flow rate; f) description of measurement procedures, including the locations of the measurement plane and pollutant measured; g) measuring instruments used and
44、 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 tests performed; k) measured concentrations; l) pollutant concentration para
45、meter of the cabin, P cc , mean value and 95 % confidence interval; m) any comments on deviations from any relevant standards; n) test laboratory; o) name of the person responsible for carrying out the test; p) date of testing; q) any additional comments. ISO 29042-7:2010(E) ISO 2010 All rights reserved 5Bibliography 1 ISO 29042-3, Safety of machinery Evaluation of the emission of airborne hazardous substances Part 3: Test bench method for the measurement of the emission rate of a given pollutant ISO 29042-7:2010(E) ICS 13.110 Price based on 5 pages ISO 2010 All rights reserved
