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1、BRITISH STANDARD BS ISO 5687:1999 Equipment for harvesting Combine harvesters Determination and designation of grain tank capacity and unloading device performance ICS 65.060.50 ? Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 27 03:33:29 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS ISO 5687:1
2、999 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 5 March 2003 BSI 5 March 2003 ISBN 0 580 41355 1 National foreword This British Standard reproduces verbatim ISO 5687:1999 and implements it as the UK national standard. It supersedes BS 662
3、1:1985 which is withdrawn. The UK participation in its preparation was entrusted to Technical Committee AGE/23, Equipment for harvesting and conservation, which has the responsibility to: A list of organizations represented on this committee can be obtained on request to its secretary. Cross-referen
4、ces The British Standards which implement international publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Onl
5、ine. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsi
6、ble international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; 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,
7、 the ISO title page, page ii, pages 1 and 2, an inside back cover and a back cover. The BSI copyright date displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. DateComments Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 27 03:33:29
8、 GMT+00:00 2006, Uncontrolled Copy, (c) BSI A Reference number ISO 5687:1999(E) INTERNATIONAL STANDARD ISO 5687 Second edition 1999-09-15 Equipment for harvesting Combine harvesters Determination and designation of grain tank capacity and unloading device performance Matriel de rcolte Moissonneuses-
9、batteuses Dtermination et dsignation de la capacit et des performances du dispositif de dchargement des trmies grain BS ISO 5687:1999 Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 27 03:33:29 GMT+00:00 2006, Uncontrolled Copy, (c) BSI OSI 9991 r llAights reserved. Unelss otherwise speceifid, n
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11、hc.osiosi dnalreztiwS ni detnirP ii Foreword ISO (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 i
12、nterested 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-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechn
13、ical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 3. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Public
14、ation as an International Standard requires approval by at least 75 % of the member bodies casting a vote. International Standard ISO 5687 was prepared by Technical Committee ISO/TC 23, Tractors and machinery for agriculture and forestry, Subcommittee SC 7, Equipment for harvesting and conservation.
15、 This second edition cancels and replaces the first edition (ISO 5687:1981), which has been technically revised. BS ISO 5687:1999 Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 27 03:33:29 GMT+00:00 2006, Uncontrolled Copy, (c) BSI DRADNATS LANOITANRETNI OSI)E(9991:7865 OSI 1 Equipment for harv
16、esting Combine harvesters Determination and designation of grain tank capacity and unloading device performance 1 Scope This International Standard specifies a method for determining and designating the capacity and unloading rate of combine harvester grain tanks and unloading systems. 2 Normative r
17、eferences The following normative documents contain provisions which, through reference in this text, constitute provisions of this International Standard. For dated references, subsequent amendments to, or revisions of, any of these publications do not apply. However, parties to agreements based on
18、 this International Standard are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the lates edition of the normative document referred to applies. Members of ISO and IEC maintain registers of currently
19、valid International Standards. ISO 712:1998, Cereal and cereal products Determination of moisture content Routine reference method. ISO 7970:1), Wheat (Triticum aestivum L.) Specification. ISO 7971-2:1995, Cereals Determination of bulk density, called “mass per hectolitre” Part 2: Routine method. 3
20、Test method 3.1 Test preparations 3.1.1 During the test the combine harvester shall be stationary, placed horizontally on a level surface and running at rated speeds. The unloading device shall be engaged at rated speed with the feed table and threshing mechanisms previously engaged. 3.1.2 The wheat
21、 used for testing shall have a moisture content not exceeding 20 % measured in accordance with ISO 712, and a maximum impurity level of 3 %, measured in accordance with ISO 7970. A sample of the test wheat shall be taken and the wet basis moisture content, in percent, and the impurity content, in pe
22、rcent by mass, shall be determined and recorded. Also determine the mass per litre of the test wheat measured in accordance with ISO 7971-2. 3.1.3 To ensure that the grain tank and unloading system are effectively empty before starting the rating tests, operate the grain unloading mechanism until th
23、e main unloading stream of grain has stopped and then continue to run the unloading system for at least one more minute before stopping. 1) To be published. (Revision of ISO 7970:1989) BS ISO 5687:1999 Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 27 03:33:29 GMT+00:00 2006, Uncontrolled Copy,
24、 (c) BSI )E(9991:7865 OSI OSI 2 3.2 Test procedure 3.2.1 Fill the grain tank with the test wheat by means of its own loading system up to, but not beyond, the point of spillage. 3.2.2 Commence unloading the test wheat from the combine harvester grain tank using the combines unloading system operatin
25、g at its rated speed into a suitable collection area for weighing the wheat, at the same time noting the starting time. The starting time is the moment when the unloading switch or lever is activated by the operator. Five seconds after the start of full flow from the unloading auger divert the wheat
26、 into a second suitable collection area. After a further 30 s divert the remaining wheat being unloaded into the first collection area until the flow of wheat stops when the grain tank is considered to be effectively empty. A single collection area combined with equipment to provide a continuous plo
27、t of time versus weight may be used in place of two collection areas. Note the time. 3.2.3 Weigh and note the mass of test wheat collected in the first and second collection areas. 4 Test results 4.1 The designation of grain tank capacity, in litres, shall be calculated by dividing the total mass of
28、 wheat collected in both collection areas by the mass per litre of the test wheat used. 4.2 The maximum grain tank unloading rate, in litres per second, shall be calculated from the mass of wheat collected in the second collection area divided by the wheat mass per litre and by 30 s. 4.3 The grain t
29、ank unloading time shall be given as the time, in seconds, determined in accordance with 3.2.2, required to unload the designated grain tank capacity as determined in 4.1. 4.4 The average grain tank unloading rate, in litres per second, shall be calculated by dividing the grain tank capacity as dete
30、rmined in 4.1 by the total grain unloading time determined in 3.2.2. 5 Information to be reported The following information shall be reported: a) machine description and model number; b) machine identification number; c) grain tank capacity, in litres; d) average/maximum grain tank unloading rates,
31、in litres per second; e) moisture content of the test grain, in percent by mass; f) grain tank unloading time, in minutes and seconds; g) tester; h) testing place. 6 Grain tank capacity designation The grain tank capacity designation of a combine harvester shall be the number of litres of wheat, rou
32、nded upwards to the nearest 100 l, that are unloaded according to the method specified in clause 3. BS ISO 5687:1999 Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 27 03:33:29 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 27 03:33:29 GMT+00:00 20
33、06, Uncontrolled Copy, (c) BSI BS ISO 5687:1999 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 level. It is incorporat
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