1、BRITISH STANDARD BS ISO 22368-3:2004 Crop protection equipment Test methods for the evaluation of cleaning systems Part 3: Internal cleaning of tank ICS 65.060.40 BS ISO 22368-3:2004 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 5 March 200
2、4 BSI 5 March 2004 ISBN 0 580 43528 8 National foreword This British Standard reproduces verbatim ISO 22368-3:2004 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 of
3、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 unde
4、r 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 appl
5、ication. 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 informed; m
6、onitor 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 5 and a back cover. The BSI copyright notice displayed in this document ind
7、icates when the document was last issued. Amendments issued since publication Amd. No. Date Comments Reference number ISO 22368-3:2004(E)INTERNATIONAL STANDARD ISO 22368-3 First edition 2004-03-01 Crop protection equipment Test methods for the evaluation of cleaning systems Part 3: Internal cleaning
8、 of tank Matriel de protection des cultures Mthodes dessai pour lvaluation des systmes de nettoyage Partie 3: Nettoyage interne du rservoir BSISO223683:2004ii BSISO223683:2004IS-86322 O3:(4002E) iiiContents Page Foreword iv Introduction v 1 Scope 1 2 Terms and definitions. 1 3 Test conditions 1 4 Te
9、st. 2 4.1 General. 2 4.2 Test procedure 2 Annex A (normative) Composition of test powder 3 Annex B (informative) Example test report 4 BSISO223683:2004IS-86322 O3:(4002E) iv Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO
10、member 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, govern
11、mental 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 Di
12、rectives, 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 b
13、odies 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 22368-3 was prepared by Technical Committee ISO/TC 23, Tractors and machine
14、ry for agriculture and 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 cleanin
15、g of sprayers Part 3: Internal cleaning of tank BSISO223683:2004IS-86322 O3:(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 poss
16、ibility of accidental 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
17、 of the art and a basis 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 b
18、asis for defining performance specifications in the future. The standard also offers individual sections for key sprayer components: this part of ISO 22368 enables specific evaluation of the tank cleaning system and provides the means for obtaining detailed results that can be used for that systems
19、improvement. BSISO223683:2004BSISO223683:2004INTENRATIONAL TSANDADR IS-86322 O3:(4002E)1Crop protection equipment Test methods for the evaluation of cleaning systems Part 3: Internal cleaning of tank WARNING Users of this part of ISO 22368 should be familiar with normal laboratory practice. This par
20、t of ISO 22368 does not address all possible safety problems associated with its use. It is 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
21、of ISO 22368 specifies a test for determining the performance of the rinsing systems fitted onto sprayers used in crop protection for the internal cleaning of the spray-liquid tank or tanks. It is applicable to mounted, trailed and self-propelled agricultural sprayers used for crop protection and li
22、quid fertilizer applications. It is not applicable to sprayers with direct injection systems. 2 Terms and definitions For the purposes of this document, the following terms and definitions apply. 2.1 rinsing system integral component of the sprayer for rinsing the inside of the spray liquid tank(s)
23、of the sprayer 3 Test conditions Testing shall be performed under the following conditions. Temperature of test liquid: 5 C to 25 C. Air temperature: 5 C to 25 C. Relative humidity of air: 30 %. BSISO223683:2004IS-86322 O3:(4002E) 2 4 Test SAFETY PRECAUTIONS Because of possible environmental hazards
24、 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 that the test liquids and the water used to clean the sprayer can be collected. If this is not the case, care
25、 shall be taken that the spread liquids do not cause any environmental damage. 4.1 General Testing shall be performed using a 1 % suspension of copper oxychloride test liquid according to Annex A and under the conditions given in Clause 3. Other traced liquids may be used if the same level of measur
26、ing performance can be demonstrated. 4.2 Test procedure 4.2.1 The tank shall be clean at the start of the test. Fill up the tank completely with test liquid while the agitator or agitators are running. Ensure that all internal surfaces especially the upper ones and the lid are wetted with the test l
27、iquid. Wait for 10 min while the agitator(s) is running. Take three representative samples 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 liquid. 4.2.2
28、 Simulate emptying the tank as in normal spraying practice. For example, open one of the section inlets and let out the same amount of liquid as would be emitted by all nozzles. Let the residual liquid out of the tank by using its outlet. 4.2.3 Rinse with clean water all parts of the sprayer that ar
29、e included in the rinsing process, except the main tank (e.g. pump, filter, pump return). 4.2.4 Let the tank dry for 24 h. 4.2.5 Operate the rinsing system of the sprayer according to the manufacturers instructions. The tank rinsing system may be fed by an external clean water pressure source, under
30、 the same operating conditions as the sprayer. After the rinsing operation, let the rinsing liquid out of the tank by using its outlet. Collect it in a separate, clean tank (A). Measure the volume of this rinsed liquid. 4.2.6 After the rinsing operation, clean all inner surfaces of the tank, includi
31、ng lid and strainer, completely, using a high-pressure cleaner. During this operation, collect the rinsed liquid in a second clean tank (B) from the outlet. Measure the volume of this rinsed liquid. 4.2.7 Take three representative samples out of both tanks (A and B) and determine the concentration o
32、f the copper using appropriate methods such as atomic-absorption-spectrometry. Calculate the mean value of the samples. 4.2.8 Report the mass of copper, m, rinsed by the rinsing device (mass of copper of the sample of Tank A) as a percentage of the mass of copper after emptying of the tank (total ma
33、ss of copper of Samples A and B). 4.2.9 Report the data (for an example test report, see Annex B). BSISO223683:2004IS-86322 O3:(4002E) 3Annex A (normative) Composition of test powder A.1 Composition Copper shall be used in the form of copper oxychloride trihydrate the test powder is also known under
34、 the name Cupravit 1) , as follows: Compound Content (3CuOCuCl 2 3H 2 O) 45 % Lignosulfonate 5 % Calcium carbonate (CaCO 3 ) 8 % Sodium sulfate decahydrate (Na 2 SO 4 10H 2 O) 11 % A.2 Size and distribution of particles The size and volume distribution of the particles used shall be as follows: Size
35、 Volume distribution 20 m 98 % min. 10 m 90 % min. 5 m 70 % min. A.3 Impurities in the technically active material Impurities shall be limited to the following. Total impurities: 3,5 % max. Water: 2 % max. Ash: 1,5 % max. (in addition to copper). A.4 Solubility The test powder shall be slowly solubl
36、e in water and organic solvents, soluble in strong mineral acids, and soluble in solutions of ammonia and amines through the formation of complexes. 1) Cupravit is an example of a suitable product available commercially. This information is given for the convenience of users of this part of ISO 2236
37、8 and does not constitute an endorsement by ISO of this product. BSISO223683:2004IS-86322 O3:(4002E) 4 Annex B (informative) Example test report Sprayer data Type of sprayer: Nominal tank capacity: l Rinsing water tank: l Type of rinsing nozzle: Liquid output of rinsing nozzle: l/m Measurement data
38、Concentration of reference test liquid (see 4.2.1) Sample 1 (C R1 ) mg/l Sample 2 (C R2 ) mg/l Sample 3 (C R3 ) mg/l Mean concentration (C RM ) mg/l Volume of rinsed liquid Tank A (see 4.2.5) Volume, V Al Sample 1 (C A1 ) mg/l Sample 2 (C A2 ) mg/l Sample 3 (C A3 ) mg/l Mean concentration (C AM ) mg
39、/l Volume of rinsed liquid Tank B (see 4.2.6) Volume, V B l Sample 1 (C B1 ) mg/l Sample 2 (C B2 ) mg/l Sample 3 (C B3 ) mg/l Mean concentration (C BM ) mg/l BSISO223683:2004IS-86322 O3:(4002E) 5Mass of copper rinsed by rinsing device as percentage of mass of copper after emptying tank m (see 4.2.8)
40、 AM A AM A BM A 100 % CV m CVCV = +%BSISO223683:2004BS ISO 22368-3:2004 BSI 389 Chiswick High Road London W4 4AL BSI British Standards Institution BSI is the independent national body responsible for preparing British Standards. It presents the UK view on standards in Europe and at the international
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