1、BSI Standards PublicationBS EN ISO 17962:2015Agricultural machinery Equipment for sowing Minimization of the en-vironmental effects of fan exhaust from pneumatic systems BS EN ISO 17962:2015 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN ISO17962:2015.The UK pa
2、rticipation in its preparation was entrusted to TechnicalCommittee AGE/6, Agricultural tractors and forestry machinery.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisions of a contra
3、ct. Users are responsible for its correctapplication. The British Standards Institution 2015. Published by BSI StandardsLimited 2015ISBN 978 0 580 78669 3ICS 65.060.30Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authori
4、ty of theStandards Policy and Strategy Committee on 31 July 2015.Amendments issued since publicationDate Text affectedEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 17962 July 2015 ICS 65.060.30 English Version Agricultural machinery - Equipment for sowing - Minimization of the environment
5、al effects of fan exhaust from pneumatic systems (ISO 17962:2015) Matriel agricole - Semoirs - Considrations pour rduire au minimum les effets de lchappement du ventilateur des systmes pneumatiques (ISO 17962:2015) Landmaschinen - Sgerte - Minimierung der Umweltauswirkungen von Geblseluft bei pneuma
6、tischen Gerten (ISO 17962:2015) This European Standard was approved by CEN on 16 April 2015. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date
7、 lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation u
8、nder the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Forme
9、r Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT E
10、UROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2015 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 17962:2015 EBS EN ISO 17962:2015EN ISO 17962:2015 (E)
11、3 European foreword This document (EN ISO 17962:2015) has been prepared by Technical Committee ISO/TC 23 “Tractors and machinery for agriculture and forestry” in collaboration with Technical Committee CEN/TC 144 “Tractors and machinery for agriculture and forestry” the secretariat of which is held b
12、y AFNOR. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by January 2016, and conflicting national standards shall be withdrawn at the latest by January 2016. Attention is drawn to the possibility th
13、at some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following countries are bound t
14、o implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, R
15、omania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsement notice The text of ISO 17962:2015 has been approved by CEN as EN ISO 17962:2015 without any modification. BS EN ISO 17962:2015ISO 17962:2015(E)Foreword ivIntroduction v1 Scope . 12 Terms and definition
16、s . 13 Requirements 23.1 General . 23.2 Principles of design method 23.2.1 Fan exhaust outlet. 23.2.2 Fan exhaust system verification . 23.3 Test method . 33.3.1 Testing area 33.3.2 Sowing area 33.3.3 Measuring area 43.3.4 Test conditions/parameters 43.3.5 Test procedure . 53.3.6 Measuring method .
17、53.3.7 Measuring locations 53.3.8 Test evaluation . 53.4 Acceptance criteria 53.5 Test result report. 5Annex A (informative) Example calculation of applied fluorescent tracer powder amount for 8 row equipment for sowing . 7 ISO 2015 All rights reserved iiiContents PageBS EN ISO 17962:2015ISO 17962:2
18、015(E)ForewordISO (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 whic
19、h 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 ma
20、tters of electrotechnical standardization.The procedures used to develop this document and those intended for its further maintenance are described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the different types of ISO documents should be noted. This d
21、ocument was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).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
22、 such patent rights. Details of any patent rights identified during the development of the document will be in the Introduction and/or on the ISO list of patent declarations received (see www.iso.org/patents).Any trade name used in this document is information given for the convenience of users and
23、does not constitute an endorsement.For an explanation on the meaning of ISO specific terms and expressions related to conformity assessment, as well as information about ISOs adherence to the WTO principles in the Technical Barriers to Trade (TBT) see the following URL: Foreword - Supplementary info
24、rmationThe committee responsible for this document is ISO/TC 23, Tractors and machinery for agriculture and forestry, Subcommittee SC 3, Safety and comfort.iv ISO 2015 All rights reservedBS EN ISO 17962:2015ISO 17962:2015(E)IntroductionThis International Standard has been developed to consider poten
25、tial methods of minimizing the effects of seed coating dust drift when mixed in the exhaust fan air flow. This dust has the potential to become fugitive during the sowing process on equipment with pneumatic systems. ISO 2015 All rights reserved vBS EN ISO 17962:2015BS EN ISO 17962:2015Agricultural m
26、achinery Equipment for sowing Minimization of the environmental effects of fan exhaust from pneumatic systems1 ScopeThis International Standard specifies various means of minimizing the environmental effects of fan exhaust from pneumatic systems for vacuum-style sowing agricultural field equipment u
27、sed for sowing coated seeds.It is applicable to vacuum-style sowing systems where “dust off” (fugitive) material from seed coatings can mix with fan (blower) intake air and be exhausted into the atmosphere.This International Standard is not applicable to conveyance systems between a central tank and
28、 remote meters where the air is exhausted at the remote meters, and conveyance systems where the meter is at a central tank and the air is exhausted at a ground engaging opening device.The design principles in this International Standard are not applicable to pneumatic equipment for sowing which was
29、 manufactured before the date of its publication.NOTE National or local requirements can apply which could be more stringent.2 Terms and definitionsFor the purposes of this document, the following terms and definitions apply.2.1direct driftquantity of plant protection product that is carried out of
30、and deposited within specified distance of the sowed area by the action of air currents during the sowing process2.2fan exhaust zonecylindrical shape (static) that defines the boundaries of the fan exhaust of a pneumatic system2.3vacuum-style sowing systempneumatic system where negative air pressure
31、 is used to meter seeds on equipment for sowing2.4zero positiondistance from the sowing area that is half of the row width from the last rowNote 1 to entry: See Figure 2.INTERNATIONAL STANDARD ISO 17962:2015(E) ISO 2015 All rights reserved 1BS EN ISO 17962:2015ISO 17962:2015(E)3 Requirements3.1 Gene
32、ralA means of minimizing the effects of fan exhaust from pneumatic systems shall be employed using either of the methods found in 3.2 and 3.3.The application of design principles is an acceptable means to minimize the effects of fan exhaust. Alternatively, testing methods can be used to verify confo
33、rmance.3.2 Principles of design method3.2.1 Fan exhaust outlet3.2.1.1 The height of the fan exhaust outlet above the ground plane shall be 0,5 m with the machine in the sowing mode.3.2.1.2 The height of the fan exhaust outlet above the ground plane when changing direction in the turning (headland) m
34、ode shall be 1,5 m.3.2.2 Fan exhaust system verification3.2.2.1 The equipment for sowing shall be set up per the manufacturers recommendations for the shape, size, and sowing rate of 60 000 seeds/ha to 80 000 seeds/ha of the field (dent) maize seed being used.3.2.2.2 The seed metering device shall b
35、e loaded with field (dent) maize seeds (2 500 seeds/kg 4 000 seeds/kg) as test material.3.2.2.3 The maximum air velocity of the exhaust stream shall not exceed 2 m/s external to a 2 m radius cylinder centring on the fan outlet and extending from a height of 0,25 m above the ground plane to a cylinde
36、r height as defined by 3.2.2.5 and 3.2.2.6. The air velocity at the cylinder sides from the ground plane to 0,25 m height shall not exceed 4 m/s. For verification, eight (8) equally spaced measurements in the cylinder height range shall be made (see Figure 1).3.2.2.4 When 2 m radius cylinders from s
37、eparate exhaust outlets intended to operate simultaneously overlap, those overlapping cylinders shall be connected into a single ovoid shape with 2 m radius ends. Air speed measurements shall be taken with both exhaust outlets in operation. Air speed external to the ovoid shall not exceed limits spe
38、cified for a single exhaust outlet.3.2.2.5 The equipment for sowing shall be stationary and the ground plane shall be smooth, level, and unobstructed. The maximum ambient wind speed shall be 0,5 m/s.3.2.2.6 The height of the air velocity measurement cylinder above the ground plane shall be 0,5 m wit
39、h the machine in the sowing mode.3.2.2.7 The height of the air velocity measurement cylinder above the ground plane when changing direction in the turning (headland) mode shall be 1,5 m.3.2.2.8 The air velocity measurement device shall be an anemometer with a measurement head diameter of 45 mm to 90
40、 mm, a minimum measurement range of 0,5 m/s to 20 m/s and an accuracy of 2%. The specific volume of the ambient air during testing shall be 0,819 m3/kg to 0,894 m3/kg.2 ISO 2015 All rights reservedBS EN ISO 17962:2015ISO 17962:2015(E)Dimensions in metres1,50,50,252,054321Key1 ground plane2 fan outle
41、t centre line (normal to ground plane)3 sowing mode4 turning (headland) mode5 area where increased air speed is permissibleFigure 1 Example of fan exhaust zone3.3 Test method3.3.1 Testing area3.3.1.1 The testing area shall be a field that has been prepared for sowing.3.3.1.2 Since each repetition wi
42、ll require a new, uncontaminated sowing area and measuring area, the testing area shall be sufficient in size to allow for all repetitions.3.3.1.3 Adjacent to sowing area and downwind, there shall be adequate space to serve as the measuring area.3.3.2 Sowing area3.3.2.1 The sowing area shall be a wi
43、dth of at least 18 m for each repetition.3.3.2.2 The sowing area length shall be 10 m with an entry and exit area lengths of between 10 m and 15 m.3.3.2.3 The length and position of the sowing area shall be chosen in such a manner that the direct drift always intersects the measuring area during cha
44、nges in wind direction. ISO 2015 All rights reserved 3BS EN ISO 17962:2015ISO 17962:2015(E)3.3.3 Measuring area3.3.3.1 Collectors, e.g. Petri dishes with a diameter of 150 mm 15 mm shall be distributed on the ground according to Figure 2.3.3.3.2 The distance between collectors shall be 1 m 0,1 m.Dim
45、ensions in metresabc211010105,01,0typ2,0typ1,0Keya row width of equipment for sowingb zero positionc sowing area width1 sowing area (see 3.3.2)2 measuring area (see 3.3.3)Figure 2 Sowing area and measuring area set-up3.3.4 Test conditions/parameters3.3.4.1 The sowing equipment shall be set up per th
46、e manufacturers recommendations for the shape and size of the field (dent) maize seed being sowed.3.3.4.2 Undressed field (dent) maize seeds (2 500 seeds/kg to 4 000 seeds/kg) as test material shall be sowed for every repetition at a rate of 60 000 seeds/ha to 80 000 seeds/ha.3.3.4.3 The wind speed
47、shall not be lower than 1 m/s and shall be 5 m/s.3.3.4.4 The mean wind direction shall not deviate more than 30 from perpendicular to the direction of driving.3.3.4.5 Weather data shall be measured 5 m from the trial area in the middle of the measuring area at a height of 2 m.4 ISO 2015 All rights r
48、eservedBS EN ISO 17962:2015ISO 17962:2015(E)3.3.5 Test procedurea) Filter paper shall be placed on the bottom of each collector.b) The filter paper shall be moistened immediately prior to the test with 5 ml to 10 ml of water, depending on the evaporation conditions.c) Using a dust dosing feeder, flu
49、orescent tracer powder of a specified particle size shall be fed into the fan inlet during the entire sowing procedure.d) The supply shall be at least 150 mg/s 10 % per fan.e) The tractor shall be set at a forward speed of 6 km/h for the test. Alternately, the tractor shall be set at the maximum forward speed specified by the manufacturer of the sowing equipment. If this specification is missing, the default forward speed shall be 6 km/h for the test.f) Each test shall be repeated three times.g) During the test, the wi
