1、BRITISH STANDARD BS ISO 22368-2:2004 Crop protection equipment Test methods for the evaluation of cleaning systems Part 2: External cleaning of sprayers ICS 65.060.40 BS ISO 22368-2:2004 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 5 March
2、 2004 BSI 5 March 2004 ISBN 0 580 43527 X National foreword This British Standard reproduces verbatim ISO 22368-2:2004 and implements it as the UK national standard. The UK participation in its preparation was entrusted to Technical Committee AGE/15, Equipment for crop protection and the application
3、 of liquid fertilizer, which has the responsibility to: A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement international publications referred to in this document may be found in the BSI Catalogue
4、under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct
5、application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informe
6、d; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the ISO title page, pages ii to v, a blank page, pages 1 to 8, an inside back cover and a back cover. The BSI copyright notice disp
7、layed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. Date Comments Reference number ISO 22368-2:2004(E)INTERNATIONAL STANDARD ISO 22368-2 First edition 2004-03-01 Crop protection equipment Test methods for the evaluation of cleaning systems
8、 Part 2: External cleaning of sprayers Matriel de protection des cultures Mthodes dessai pour lvaluation des systmes de nettoyage Partie 2: Nettoyage externe des pulvrisateurs BSISO223682:2004ii BSISO223682:2004IS-86322 O2:(4002E) iiiContents Page Foreword iv Introduction v 1 Scope 1 2 Terms and def
9、initions. 1 3 Test liquid and conditions 1 3.1 General. 1 3.2 Test liquid 1 3.3 Test conditions 2 4 Test A Production of a defined, reproducible external contamination. 2 5 Test B Determining the performance of external-surface cleaning devices 3 Annex A (normative) Composition of test powder 4 Anne
10、x B (informative) Example test report Test method A. 5 Annex C (informative) Example test report Test method B. 7 BSISO223682:2004IS-86322 O2:(4002E) iv Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The w
11、ork 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 non-govern
12、mental, 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, Part 2. The
13、 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 casting a vote.
14、 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 22368-2 was prepared by Technical Committee ISO/TC 23, Tractors and machinery for agriculture an
15、d forestry, Subcommittee SC 6, Equipment for crop protection. ISO 22368 consists of the following parts, under the general title Crop protection equipment Test methods for the evaluation of cleaning systems: Part 1: Internal cleaning of complete sprayers Part 2: External cleaning of sprayers Part 3:
16、 Internal cleaning of tank BSISO223682:2004IS-86322 O2:(4002E) vIntroduction The cleaning of sprayers used in crop protection is becoming increasingly important, especially for the following reasons: to avoid contamination of the environment and the operator; because of the possibility of accidental
17、 release of agrochemicals that could cause crop damage, raise residue fears or lead to the mixing of incompatible crop protection products. Moreover, it is likely that the relevant sections of the industry are in need of guidance in developing cleaning systems, so that the state of the art and a bas
18、is for future specifications can be evaluated. ISO 22368-1 and ISO 22368-2 specify test methods related to the internal and external cleaning of sprayers, offering the user the means to evaluate the general performance of both inside and outside cleaning systems and a possible basis for defining per
19、formance specifications in the future. The standard also offers individual sections for key sprayer components (see ISO 22368-3). This part of ISO 22368 enables the cleaning system to be evaluated for specific components and provides the means for obtaining detailed results that can be used for its
20、improvement. Its main purpose is to specify a standardized procedure for simulating the contamination of the sprayer by spray liquid under normal operating conditions. Depending on the intended use, either or both of two different test methods may be used: Test A is especially intended for the devel
21、opment or adjustment of the sprayer to minimize external contamination of the sprayer; Test B allows comparison of the cleaning systems of different sprayers and checking of the performance of the cleaning devices in respect of possible future requirements. BSISO223682:2004BSISO223682:2004 1Crop pro
22、tection equipment Test methods for the evaluation of cleaning systems Part 2: External cleaning of sprayers WARNING Users of this part of ISO 22368 should be familiar with normal laboratory practice. This part of ISO 22368 does not address all possible safety problems associated with its use. It is
23、the responsibility of the user to establish appropriate safety and health practices and ensure compliance with any national regulatory conditions related to safety and environmental issues. 1 Scope This part of ISO 22368 specifies two test methods for evaluating the performance of cleaning systems f
24、itted onto sprayers used in crop protection for the removal of deposits on the external surfaces of the sprayer. The purpose of the tests is to provide sprayer designers with information on contamination of the sprayer and permit comparison of different attachments or adjustments in relation to exte
25、rnal cleaning (Test A), and to allow the performance of different cleaning devices to be determined (Test B). It is applicable to mounted, trailed and self-propelled agricultural sprayers used for crop protection and liquid fertilizer applications. 2 Terms and definitions For the purposes of this do
26、cument, the following terms and definitions apply. 2.1 cleaning device attached component to the sprayer for cleaning the external surface of the sprayer 3 Test liquid and conditions 3.1 General The tests shall be performed using the test liquids specified in 3.2, and under the conditions given in 3
27、.3. Other traced liquids may be used if the same level of measuring performance can be demonstrated. For this purpose, accuracy of measurements for example should be at least 0,01 % of the original tank concentration. NOTE One test liquid is specified for Test A and another for Test B. A soluble dye
28、 is used for Test A, as an easy cleaning of the deposit is sufficient, whereas, for Test B, the stickier test liquid is needed to make a clearer difference between the performance of the different cleaning devices. 3.2 Test liquid 3.2.1 Test A Testing shall be performed using a 0,1 % solution of yel
29、low Tartrazine 85 % E 102 test liquid. 3.2.2 Test B Testing shall be performed using the 0,1 % suspension of copper oxychloride test liquid according to Annex A. BSISO223682:2004IS-86322 O2:(4002E) 23.3 Test conditions Testing shall be performed under the following conditions. Temperature of the tes
30、t liquid: 5 C to 25 C. Ground conditions: without dust and leaves (e.g. grassland). During replications range of air temperature: 5 C max. range of relative humidity of air: 20 % max. maximum wind speed: 5,0 m/s (measured at a fixed position on the test area at a height of 2 m). 4 Test A Production
31、of a defined, reproducible external contamination SAFETY PRECAUTIONS Because of possible environmental hazards inherent in this method, recognized precautions shall be observed to eliminate accidental release of test liquids outside the test site. All operations should preferably be carried out such
32、 that the test liquids and the water used to clean the sprayer can be collected. If this is not the case, care shall be taken that the spread liquids do not cause any environmental damage. During the contamination of the sprayer, as well as during cleaning, precautions shall be taken to minimize dri
33、ft of test liquids. IMPORTANT This test may be modified (e.g. cleaning of sprayer parts separately, contamination shown by photographs) in order to get more detailed information. Alternative methods aimed at assessing the contamination of separate parts of the sprayer (e.g. using removable artificia
34、l collectors made of the same materials as the sprayer) are allowed, provided the same level of measuring performance can be demonstrated. 4.1 The external surface shall be dry and clean at the start of the test. Fill up the tank with test liquid (see 3.2.1) to the volume needed according to 4.2. Ta
35、ke three representative samples from the sprayer tank in order to check the concentration of the reference test liquid. Each of these samples shall have a volume of at least 50 ml and shall not deviate by more than 5 % from the concentration of the reference test liquid. 4.2 Operate the sprayer unde
36、r the intended conditions (speed, pressure, etc.). Drive in circles for a duration of 10 min, ensuring that the number of right and left turns is identical. The circle radius for boom sprayers (field crop and bush crops) shall be equal to the boom width, while that for mist blowers shall be 10 m. Me
37、asure and report the volume of test liquid sprayed. 4.3 Wind speed, air temperature and humidity, and field conditions during the test shall be recorded. 4.4 Put the sprayer in a catchment pool of an appropriate size to collect the total amount of rinsing liquid. In the case of trailed sprayers, exc
38、lude the tyres of the sprayer by cleaning them outside the catchment pool. In the case of mounted sprayers, it could be necessary to drive the tractor partially into the catchment pool, but ensure that contamination of the tractor is not included, by, for example, partially washing or covering the t
39、ractor outside the catchment pool. 4.5 Clean the sprayer using a spray gun at 1 MPa (10 bar) pressure. Measure and report the volume of water used for total cleaning. Take three representative samples out of the collected rinsing liquid. Clean the catchment pool completely. 4.6 Add a second cleaning
40、 process similar to that specified in 4.5. 4.7 Determine the concentration of the yellow dye of the rinsing liquid (see 4.5 and 4.6) using appropriate means such as spectrophotometric analysis. Calculate the mean values of the samples taken according to 4.5 and 4.6. BSISO223682:2004IS-86322 O2:(4002
41、E) 34.8 Report the mass of yellow dye (4.5 and 4.6) found as a deposit on the sprayer as a percentage of the mass of the yellow dye sprayed. 4.9 Add a third cleaning process if the mass of yellow dye found after the second cleaning process amounts to more than 10 % of the mass of the yellow dye foun
42、d after the first. 4.10 Under the conditions given in 3.3, perform at least three replications. If the CV value is higher than 15 %, repeat the test. Calculate the CV as a mass fraction. 4.11 Report all data and additional information, e.g. contamination shown by photographs (for an example test rep
43、ort, see Annex B). 5 Test B Determining the performance of external-surface cleaning devices SAFETY PRECAUTIONS Because of possible environmental hazards inherent in this method, recognized precautions shall be observed to eliminate accidental release of test liquids outside the test site. All opera
44、tions should preferably be carried out such that the test liquids and the water used to clean the sprayer can be collected. If this is not the case, care shall be taken that the spread liquids do not cause any environmental damage. During the contamination of the sprayer, as well as during cleaning,
45、 precautions shall be taken to minimize drift of test liquids. IMPORTANT With regard to the surface adhesion parameters of the test liquid, special attention should be paid when taking the samples in order to ensure their true representativeness. 5.1 The external surface shall be dry and clean at th
46、e start of the test. Fill up the tank with test liquid (see 3.2.2) to the volume needed according to 5.2. Take three representative samples from the sprayer tank in order to check the concentration of the reference test liquid. Each of these samples shall have a volume of at least 50 ml and shall no
47、t deviate by more than 5 % from the concentration of the reference test liquid. 5.2 Drive in circles for a duration of 10 min, as specified in 4.2. The forward speed should be 5,0 km/h. Using a boom sprayer, the pressure should amount to 0,3 MPa (3,0 bar) for flat fan nozzles and 0,5 MPa (5,0 bar) f
48、or air injection nozzles, and that when using a mist blower should amount to 1 MPa (10,0 bar). 5.3 Wind speed, air temperature and humidity, and field conditions during the test shall be recorded. 5.4 Put the sprayer in a catchment pool of an appropriate size to collect the total amount of rinsing l
49、iquid. In the case of trailed sprayers, exclude the tyres of the sprayer by cleaning them outside the catchment pool. In the case of mounted sprayers, it could be necessary to drive the tractor partially into the catchment pool, but ensure that contamination of the tractor is not included, by, for example, partially washing or covering the tractor outside the catchment pool. 5.5 Clean the sprayer by the attached cleaning dev
