1、DEUTSCHE NORM June 1999 Equipment for crop protection - Spraying equipment Part 1 : Test methods for hydraulic sprayers (IS0 5682-2 : 1997) DIN - IS0 5682-2 ICs 65.060.40 Landmaschinen und Traktoren - Pflanzenschutzgerte - Teil 2: Prfverfahren fr Feldspritzgerte (IS0 5682-2 : 1997) This standard inc
2、orporates International Standard IS0 5682-2 Equipment for crop protection - Spraying equipment - Part 2: Test methods for hydraulic sprayers. A comma is used as the decimal marker. National foreword This standard has been prepared by ISO/TC 23. The responsible German body involved in its preparation
3、 was the Normenausschu Maschinenbau (Me- chanical Engineering Standards Committee), Section andfechnik. Re subclause 5.2.1 It should be noted that, when changing the distance between two consecutive ridges, the height of the vertical walls has not been changed accordingly. This height should be equa
4、l to (not twice) the groove width. IS0 Standard comprises 1 O pages. No pari of this standard may be reproduced without the prior permission of Ref. No. DIN IS0 5682-2 : 1999-0 Y Deutsches Institut fr Normung e. V., Berlin. wth Verlag GmbH, D-10772 Berlin, has the exclusive right of sale for German
5、Standards (DIN-Normen). English price group 05 Sales No. 0405 11.99 Page 1 IS0 5682-2 : 1997 Equipment for crop protection - Spraying equipment Part 2: Test methods for hydraulic sprayers Foreword IS0 (the International Organization for Standardization) is a worldwide federation of national standard
6、s bodies (IS0 member bodies). The work of preparing International Standards is normally carried out through IS0 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 organiz
7、ations, governmental and non-governmental, in liaison with ISO, also take part in the work. IS0 collaborates closely with the International Electrotechnical Organization (IEC) on all matters of electrotechnical standardization. Draft International Standards adopted by the technical committees are ci
8、rculated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. International Standard IS0 5682-2 was prepared by Technical Committee ISOiTC 23, Tractors and machinery for agriculture and foreshy, Subcommittee
9、 SC 6, Equipment for crop protection. This second edition cancels and replaces the first edition (IS0 5682-2:1986), of which it constitutes a techn ical revision. Annexes A and B form an integral part of this part of IS0 5682. Page 2 IS0 5682-2 : 1997 1 Scope This part of IS0 5682 specifies the meth
10、ods of testing and assessing the performance and accuracy of distribution of hydraulic sprayers for field crops. It is applicable to agricultural hydraulic sprayers for field crops, except for manual sprayers and aircraft-mounted sprayers. 2 Normative references The following standards contain provi
11、sions which, through reference in this text, constitute provisions of this International Standard. At the time of the publication, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on the International Standard are encouraged to investigate the
12、 possibility of applying the most recent editions of the standards indicated below. Members of IEC and IS0 maintain registers of currently valid International Standards. IS0 5681 :1992, Equipment for crop protection - Vocabulaty. IS0 5682-1 :1996, Equipment for crop protection - Spraying equipment -
13、 Part 1: Test methods for sprayer nozzles. 3 Definitions For the purposes of this part of IS0 5682, the definitions given in IS0 5681 and the following definition apply. 3.1 reference level level of liquid when the tank is filled to its nominal capacity and the sprayer is in a horizontal position 4
14、Test liquids 4.1 Clean water, with no solids in suspension, except for the agitating test (see 8.9). 5 Apparatus NOTE- Measuring equipment other than those described in sections 5.1 and 5.2 are allowed providing that the same accuracy and the same resolution are achieved. Page 3 IS0 5682-2 : 1997 5.
15、1 Measuring equipment For measurements relating to nozzles and for the test equipment, see IS0 5682-1:1996, subclause 5.1. 5.2 Distribution bench The distribution bench shall be in accordance with IS0 5682-1:1996, figure 1. 5.2.1 Groove characteristics The walls of the grooves shall be vertical. The
16、 upper edges of the walls shall form a plane with, in the longitudinal direction (perpendicular to the grooves), a tolerance of * 1 % on the horizontal and, in the lateral direction (parallel with the grooves), a tolerance of * 2 % (see IS0 5682-1:1996, figure 2). The maximum thickness of the groove
17、 walls shall be 4 mm. The distance between two consecutive ridges shall be (100 i 1) mm. NOTE - in the case of a distribution bench composed of grooves spaced at intervals of 50 mm or 25 mm, the following conditions apply by comparing two or four adjacent grooves with one 100 mm groove. The height o
18、f the vertical walls of the grooves shall be at least twice the width of the grooves. The total width of the distribution bench shall not be affected by the sum of the tolerances permitted for the upper part of each ridge. 5.2.2 Upper part of the walls The upper part of the walls is formed by a symm
19、etrical chamfered edge which may be rounded off and which shall have the following characteristics: a) b) c) d) the height of chamfered edge shall be at least three times the thickness of the wall; the thickness of upper part of the chamfered edge shall be at most 1 mm; the rounding-off radius shall
20、 be at most 0,5 mm; no point of the ridges shall be more than 2 mm above or below the mean plane of the ridges. 6 6.1 6.2 6.3 6.4 6.5 6.6 Accuracy of the measurements The time measured shall be not less than 60 s and the measurements shall be made to an accuracy of * 1 s. Volumes of liquid shall be
21、measured to an accuracy of * 0,5 YO. Pressures shall be measured to an accuracy of * 2,5 % of the test pressure. The accuracy of mass, length and volume measurements shall be specified in the test report. Angles shall be measured to an accuracy of f 1 O. Temperatures shall be measured to an accuracy
22、 of f 0,5 “C. Page 4 IS0 5682-2 : 1997 7 General test conditions All operational conditions and test parameters shall be indicated in the test report. 7.1 Power take-off rotational frequency All the tests shall be made with a power take-off rotational frequency of 540 min-l, or 1 O00 min-1 or the ro
23、tational frequency recommended by the manufacturer. 7.2 Temperature and relative humidity The temperature of the test liquid and the air temperature of the test premises shall be between 10 “C and 25 “C during the test. The relative humidity of the test premises shall be normally not less than 50 %.
24、 The temperature and the relative humidity shall be stated in the test report. 7.3 Pressures During the test period, the pressure used shall not vary more than pressures shall be stated in the test report. 2,5 Yo from the mean pressure. The test Before each test, the pressure shall be established us
25、ing a standard pressure gauge mounted alongside the sprayer pressure gauge. The pressure checking assembly shall not be changed during the test. A sufficient number of pressure gauges shall be inserted to indicate the pressure of the liquid at the inlet and at the end of each spray boom section. If
26、necessary, there shall be also a pressure gauge at the inlet and outlet of each line filter. Optionally, the pressure may be measured at intake and discharge from the pump and hydraulic injector, as close as possible to these devices. 7.4 Choice of nozzles for the tests A sufficient number of comple
27、te nozzles shall be taken to equip the boom. The deviation in the discharge from each nozzle, expressed as a percentage of the mean discharge of the sample, shall not exceed f 2,5 OX, in accordance with IS0 5682-1:1996, subclause 6.2. 8 Testing 8.1 Uniformity of output from the nozzles mounted on th
28、e boom The test shall be made with each type of complete nozzle. 8.1.1 Test pressure Use as the test pressure the maximum pressure indicated by the manufacturer to the operator for the type of nozzle mounted on the boom, if it is less than the maximum service pressure of the sprayer: otherwise, use
29、the maximum service pressure. 8.1.2 Measurements Collect the liquid discharged by each nozzle on the boom for a chosen period and measure the volumes obtained. Any equivalent method may be used. 8.1.3 Results The volume of liquid collected for each nozzle shall be indicated, in a table or graph, as
30、a percentage of the mean volume for the nozzle type mounted. Page 5 IS0 5682-2 : 1997 8.2 Discharge from the spray boom The test shall be made with each type of complete nozzle. 8.2.1 Test pressure Use the pressures specified in of IS0 5682-1:1996, subclause 7.2.2. 8.2.2 Measurements Measure the tot
31、al discharge from the spray boom during a period of at least 60 s. 8.2.3 Results indicate the total discharge from the spray boom in the test report, in litres per minute, in the form of a graph or table. The volumelhectare for various forward speeds may also be indicated In the form of a graph or t
32、able. 8.3 Spacing of nozzles and direction of their axes 8.3.1 Spacing The spacing between nozzles along the spray boom shall be measured to an accuracy of 1 mm. 8.3.2 Direction of the axes of the nozzles The direction of the axes of the nozzles shall be measured in relation to the vertical and in a
33、ccordance with the recommendations of the manufacturer. It may, for example, be shown by inserting a rod in the nozzle nut. 8.3.3 Results Indicate in the test report the position of the nozzles along the spray boom, in millimetres, and the angular deviation of their axes in relation to the vertical
34、and to the travel direction, in degrees, with the nozzles numbered from left to right on the horizontal axis viewed by an observer located behind the sprayer. 8.4 Spray distribution 8.4.1 Pressure Use the maximum and minimum pressures indicated by the manufacturer of the sprayer used and, if it is s
35、pecified, the optimum pressure. The test shall be carried out on a complete spray boom, or in the case of a symmetrical design, on at least one half of the spray boom. In the case of a test carried out spray boom section by spray boom section, the following conditions shall be respected: - the whole
36、 spray boom shall discharge during a test on one spray boom section; - the time of the test shall be the same for each spray boom section. 8.4.2 Positioning of the spray boom The spray boom shall be in its normal working position. Page 6 IS0 5682-2 : 1997 8.4.3 Height of the spray boom If the manufa
37、cturer indicates an optimum working height, the test shall be made at this height as well as at 150 mm above and below this working height. If the manufacturer does not indicate a working height, the tests shall be made at 400 mm, 500 mm, 600 mm and 700 mm, and optionally at 300 mm and 800 mm. These
38、 heights shall be measured from the ridges of the distribution bench to the nozzle orifices. 8.4.4 Measurements Collect the liquid from each 100 mm groove during a period which is determined according to the discharge from the nozzle having the greatest discharge. 8.4.5 Results Indicate the results
39、in the test report, for each boom height, in the form of a graph or table, with the grooves numbered from left to right on the horizontal axis viewed by an observer located behind the sprayer. The volume collected for each groove shall be indicated on the vertical axis as a percentage of the mean vo
40、lume. The coefficient of variation for each height shall also be indicated in the form of a graph or table. Only those grooves located in the area completely covered by the jets shall be taken into account in the calculations. The coefficient of variation shall be calculated for the 1 O0 mm grooves
41、and also for the 50 mm or 25 mm grooves if these are used. 8.5 Head losses in the delivery piping Position the adjustment system of the sprayer so as to obtain the maximum discharge which can be achieved from the spray boom. 8.5.1 Measurements For the positioning of the pressure gauges, see 7.3. Mou
42、nt the largest output nozzles supplied. Adjust the pressure to the maximum value indicated for these nozzles by the manufacturer. Switch on any hydraulic mixing device which is operated by the discharge from the pump (for example, hydraulic injector or hydraulic agitator). 8.5.2 Results The pressure
43、s indicated by the pressure gauges, the differences between the pressures indicated by successive pressure gauges and the differences between the pressure read on the pressure gauge placed upstream of the pump output and those read on the subsequent pressure gauges shall be given in a table. 8.6 Dis
44、charge from the pump 8.6.1 Measurements The discharge from the pump shall be measured at the pump speed indicated by the manufacturer, and at the maximum and minimum service pressures. In addition, the discharge from the pump shall be measured in its normal mounting on the sprayer at the intake heig
45、ht corresponding to a half-full tank during the test. 8.6.2 Results The results of these tests shall be given in the form of a graph or a table, in litres per minute. Page 7 IS0 5682-2 : 1997 8.7 Rate of fill from the tank filling device 8.7.1 Measurements The discharge from the system for filling t
46、he tank shall be measured for: a) a water surface kept at the level of the opening in the filler; b) a water surface kept 3 m below the horizontal plane passing through the intake opening of the pump; c) a water surface kept 5 m below the horizontal plane passing through the intake opening of the pu
47、mp. The hoses, connectors and strainers supplied by the manufacturer shall be used. 8.7.2 Results The results of the measurements shall be indicated in the test report. An accuracy of I 5 % is sufficient for these discharge measurements. The discharge rate shall be expressed in litres per minute. Op
48、tionally, the time to fill the sprayer tank may be indicated, in minutes. 8.8 Capacity of the tank 8.8.1 Measurements The total volume of the tank shall be measured. Compare the actual volume in the tank corresponding to the centre-line of each mark on the scale of the contents gauge with the volume
49、 indicated on the gauge. 8.8.2 Results The test report shall mention the total volume of the tank, in litres and as a percentage of the nominal volume. For each mark on the scale of the gauge, the volume indicated and the deviation with respect to the actual volume shall be expressed in a table, as a percentage of the actual volume. 8.9 Agitating 8.9.1 Preliminary test Carry out the agitating test using a 1 % suspension of copper oxychloride in accordance with annex A (this concentration is considered to be the basis concentration). Fill the tank to the nominal capacity whilst agitating
