1、December 2015 English price group 9No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS 65.060.30!%IV“2385129www.din.deD
2、IN EN ISO 17962Agricultural machinery Equipment for sowing Minimization of the environmental effects of fan exhaust from pneumatic systems (ISO 17962:2015);English version EN ISO 17962:2015,English translation of DIN EN ISO 17962:2015-12Landmaschinen Sgerte Minimierung der Umweltauswirkungen von Geb
3、lseabluft bei pneumatischen Gerten (ISO 17962:2015);Englische Fassung EN ISO 17962:2015,Englische bersetzung von DIN EN ISO 17962:2015-12Matriel agricole Semoirs Considrations pour rduire au minimum les effets de lchappement du ventilateur des systmes pneumatiques (ISO 17962:2015);Version anglaise E
4、N ISO 17962:2015,Traduction anglaise de DIN EN ISO 17962:2015-12www.beuth.deDocument comprises 14 pagesDTranslation by DIN-Sprachendienst.In case of doubt, the German-language original shall be considered authoritative.11.15 DIN EN ISO 17962:2015-12 2 A comma is used as the decimal marker. National
5、foreword This standard includes environmentally relevant requirements. 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 agricultu
6、re and forestry”. The responsible German body involved in its preparation was DIN-Normenausschuss Maschinenbau (DIN Standards Committee Mechanical Engineering), Working Committee NA 060-16-02 AA Bodenbearbeitung, Saat, Pflanzenpflege, Pflanzenschutz of Section Landtechnik. Stakeholders were involved
7、 in the development of the standard. The International Standards referred to in Clause 2 and the Bibliography and taken over as European Standards have been published as the corresponding DIN EN ISO Standards with the same number. Where the International Standards and publications referred to are no
8、t also DIN ISO Standards with the same number, there are no national standards available. EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 17962 July 2015 ICS 65.060.30 English Version Agricultural machinery - Equipment for sowing - Minimization of the environmental effects of fan exhaust fr
9、om 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 Geblseabluft bei pneumatischen Gerten (ISO 17962:
10、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 lists and bibliographical
11、 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 under the responsibility of
12、 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, Former Yugoslav Republic of Mac
13、edonia, 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 EUROPEN DE NORMALISATION EU
14、ROPISCHES 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 EIntroduction 1 Scope .2 Terms and definitions .3 Requirements 3.1 Ge
15、neral .3.2 Principles of design method 3.2.1 Fan exhaust outlet.3.2.2 Fan exhaust system verification .3.3 Test method .3.3.1 Testing area 3.3.2 Sowing area 3.3.3 Measuring area 3.3.4 Test conditions/parameters 3.3.5 Test procedure .3.3.6 Measuring method .3.3.7 Measuring locations 3.3.8 Test evalua
16、tion .3.4 Acceptance criteria 3.5 Test result report.Annex A (informative) Example calculation of applied fluorescent tracer powder amount for 8 row equipment for sowing 1Contents PageEuropean foreword 34552 EN ISO 17962:2015 (E) 9999998877766666DIN EN ISO 17962:2015-12 1European foreword This docum
17、ent (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 by AFNOR. This European Standar
18、d 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 that some of the elements of thi
19、s 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 to implement this European Stan
20、dard: 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, Romania, Slovakia, Slovenia, Sp
21、ain, 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. 3 EN ISO 17962:2015 (E) DIN EN ISO 17962:2015-12 IntroductionThis International Standard has been developed to consider poten
22、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.4 EN ISO 17962:2015 (E) DIN EN ISO 17962:2015-12 1 ScopeThis International Standard s
23、pecifies various means of minimizing the environmental effects of fan exhaust from pneumatic systems for vacuum-style sowing agricultural field equipment used for sowing coated seeds.It is applicable to vacuum-style sowing systems where “dust off” (fugitive) material from seed coatings can mix with
24、fan (blower) intake air and be exhausted into the atmosphere.This International Standard is not applicable to conveyance systems between a central tank and 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 exhaus
25、ted at a ground engaging opening device.The design principles in this International Standard are not applicable to pneumatic equipment for sowing which was manufactured before the date of its publication.NOTE National or local requirements can apply which could be more stringent.2 Terms and definiti
26、onsFor the purposes of this document, the following terms and definitions apply.2.1direct driftquantity of plant protection product that is carried out of and deposited within specified distance of the sowed area by the action of air currents during the sowing process2.2fan exhaust zonecylindrical s
27、hape (static) that defines the boundaries of the fan exhaust of a pneumatic system2.3vacuum-style sowing systempneumatic system where negative air pressure 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
28、1 to entry: See Figure 2.5 EN ISO 17962:2015 (E) DIN EN ISO 17962:2015-12 3 Requirements3.1 GeneralA 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
29、 minimize the effects of fan exhaust. Alternatively, testing methods can be used to verify conformance.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 t
30、he fan exhaust outlet above the ground plane when changing direction in the turning (headland) mode 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
31、 000 seeds/ha of the field (dent) maize seed being used.3.2.2.2 The seed metering device shall be 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 cent
32、ring on the fan outlet and extending from a height of 0,25 m above the ground plane to a cylinder 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
33、 the cylinder height range shall be made (see Figure 1).3.2.2.4 When 2 m radius cylinders from separate 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 wit
34、h both exhaust outlets in operation. Air speed external to the ovoid shall not exceed limits specified 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
35、.6 The height of the air velocity measurement cylinder above the ground plane shall be 0,5 m with 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 ve
36、locity measurement device shall be an anemometer with a measurement head diameter of 45 mm to 90 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.6 EN ISO 17962:2015 (E) DIN EN ISO 17
37、962:2015-12 Dimensions in metres1,50,50,252,054321Key1 ground plane2 fan outlet 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
38、 be a field that has been prepared for sowing.3.3.1.2 Since each repetition will 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 serv
39、e as the measuring area.3.3.2 Sowing area3.3.2.1 The sowing area shall be a width 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
40、a manner that the direct drift always intersects the measuring area during changes in wind direction.7 EN ISO 17962:2015 (E) DIN EN ISO 17962:2015-12 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
41、.3.2 The distance between collectors shall be 1 m 0,1 m.Dimensions 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/pa
42、rameters3.3.4.1 The sowing equipment shall be set up per the 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
43、 60 000 seeds/ha to 80 000 seeds/ha.3.3.4.3 The wind speed 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 th
44、e measuring area at a height of 2 m.8 EN ISO 17962:2015 (E) DIN EN ISO 17962:2015-12 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 cond
45、itions.c) Using a dust dosing feeder, fluorescent 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, th
46、e 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 wind direction and wind speed shall b
47、e collected continuously with a frequency 0,5 Hz.3.3.6 Measuring methodThe direct drift shall be measured as soil sediment.3.3.7 Measuring locationsThe collectors for assessing the soil sediment shall be placed in accordance with Figure 2.3.3.8 Test evaluation3.3.8.1 After drying of the collectors w
48、ith filter papers, the amount of sedimented powder shall be determined fluorimetrically.3.3.8.2 The mean value (percentage of sediment from the emitted tracer powder) from the 90 measured values (30 for each test), shall be calculated and recorded per 3.5 h).3.4 Acceptance criteriaThe maximum permis
49、sible drift value to pass the test shall be the mean of the measured values from 3.3.8.2. The maximum permissible drift value shall not exceed 1,5 % of the applied fluorescent tracer powder to pass the test.3.5 Test result reportThe test result report shall include (as a minimum) the following:a) manufacturer of the sowing equipment;b) type of equipment for sowing;c) characteristics of the equipment for sowing tested, e.g. number of sowing elements, d
