1、BRITISH STANDARD BS 6356-4: 1989 Spraying equipment for crop protection Part 4: Specification for performance limits for field spraying nozzles UDC 631.348.45:632.982.1:006.3/.8BS6356-4:1989 This British Standard, having been prepared under the directionof the Agricultural Machinery and Implements S
2、tandards Policy Committee, waspublished under the authorityof the Board of BSI andcomes into effect on 30November 1989 BSI 08-1999 The following BSI references relate to the work on this standard: Committee reference AGE/15 Draft for comment 86/75901 DC ISBN 0 580 17656 8 Committees responsible for
3、this British Standard The preparation of this British Standard was entrusted by the Agricultural Machinery and Implements Standards Policy Committee (AGE/-) to Technical Committee AGE/15, upon which the following bodies were represented: AFRC Institute of Engineering Research Agricultural and Allied
4、 Workers National Trade Group Agricultural Engineers Association British Agrochemicals Association Ltd. Health and Safety Executive Imperial College of Science and Technology Long Ashton Research Station Ministry of Agriculture, Fisheries and Food National Farmers Union Amendments issued since publi
5、cation Amd. No. Date of issue CommentsBS6356-4:1989 BSI 08-1999 i Contents Page Committees responsible Inside front cover Foreword ii 1 Scope 1 2 Performance limits 1 Figure 1 Spray distribution showing ideal, upper and lower limits based on volume of spray collected in 50 mm divisions on distributi
6、onbench 2 Table 1 Nozzle height above distribution bench 1 Publication referred to Inside back coverBS6356-4:1989 ii BSI 08-1999 Foreword This Part of BS 6356 has been prepared under the direction of the Agricultural Machinery and Implements Standards Policy Committee. It complements BS6356-1 and sp
7、ecifies the performance limits for flat fan and hollow cone nozzles used in field spraying. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not
8、 of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, pages1 and 2, an inside back cover and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This wi
9、ll be indicated in the amendment table on the inside front cover.BS6356-4:1989 BSI 08-1999 1 1 Scope This Part of BS6356 specifies performance limits for flat fan and hollow cone nozzles used in field spraying. NOTEThe title of the publication referred to in this standard is listed on the inside bac
10、k cover. 2 Performance limits 2.1 Performance limit for discharge rate When tested in accordance with6.2 of BS6356-1:1983 the discharge rate shall be within 5% of the stated flow rate at the optimum pressure for use specified by the manufacturer. 2.2 Performance limits for distribution of spray from
11、 flat fan nozzles When tested in accordance with6.3 of BS6356-1:1983 with the nozzle height above the distribution table in accordance withTable 1, the spray distribution shall be within the limits shown inFigure 1 at the optimum pressure for use specified by the manufacturer. NOTENo requirement is
12、specified for hollow cone nozzles. 2.3 Performance limit for spray angle for flat fan nozzles When measured in accordance with6.5 of BS6356-1:1983 the performance limit on the manufacturers stated spray angle shall be: 5 for65 nozzles; 5 for80 nozzles; 5 for110 nozzles. NOTENo requirement is specifi
13、ed for hollow cone nozzles. Table 1 Nozzle height above distribution bench Manufacturers stated spray angle Height above distribution bench degrees mm 110 80 65 350 595 785BS 6356-4:1989 2 BSI 08-1999 Figure 1 Spray distribution showing ideal, upper and lower limits based on volume of spray collecte
14、d in 50 mm divisionsondistribution benchBS6356-4:1989 BSI 08-1999 Publication referred to BS 6356, Spraying equipment for crop protection. BS 6356-1, Method of test for sprayer nozzles. BS 6356-4: 1989 BSI 389 Chiswick High Road London W4 4AL BSIBritishStandardsInstitution BSI is the independent nat
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