British Standards Relevant to Agriculture

British Standard Summaries

BS6356:1 1997 [ISO 5682-1, 1996]
Spraying Equipment for Crop Protection
Part 1: Methods of Test for Sprayer Nozzles


The text herein is not a a full reproduction of the British Standard. It is summary based upon interpretation of the original text and not intended as a replacement for the full text. It should be used for general guidance only.

BS6356 is currently sub-divided into 16 individual standards. These are as follows:

Part Title
1 Test Methods for Spray Nozzles
2 Connecting Dimensions for Nozzles & Manometers
3 Dimensions of Connection Threading
4 Performance Limits for Field Spraying Nozzles
5 Tank Nominal Volume & Filling Hole Diameter
6 Connecting Dimensions for Nozzles & Bayonet Fixing
7 Guide for Typical Data Sheet Layout
8 Induction Hoppers
9 Closed Transfer of Liquid Formulations
10 Test Method for Adjustment Systems of Agriculture Hydraulic Pressure Sprayers
11 Agricultural Sprayers. Determination of the Volume of Total Residue
12 Sprayer Nozzles. Colour Coding for Identification.
13 Air-Assisted Sprayers. Dimensions of Nozzle Swivel Nuts
14 Test Methods for Hydraulic Sprayers
15 Spraying Equipment for Crop Protection: Typical Data Sheet Layout
16 Technical Specifications Related to Data Sheets for Components.

This summary applies to Part 1 and is concerned with methods of estimating the accuracy of hydraulic energy sprayer nozzles mounted, towed or self-propelled and used for spraying agricultural fields with crop protection or fertilisation products.

General

  • The full Standard describes the equipment and materials needs, with diagrams, to carry out the test.

Test Conditions

  • The temperature should lie between 10 and 25 degrees C during the test.
  • Humidity should not be less than 50%
  • The air pressure should not vary more than +/- 2.5 % during the test.

Determining the Characteristics of the Sprayer Nozzles

  • The uniformity of the discharge rate of the nozzles should be determined using the sampling method described and the test liquid stated in the Full Standard.
    • The test conditions should be recorded in a test report.
    • Results should be recorded in a test report.
  • The variations in discharge rate according to pressure should be determined using the sampling method described and the test liquid stated in the Full Standard.
    • The test conditions should be recorded in a test report.
    • Results should be recorded in a test report.
  • The spray distribution should be determined using the sampling method described and the test liquid stated in the Full Standard.
    • The position of the nozzles is critical. This is described in the Full Standard.
    • The test conditions should be recorded in a test report.
    • Results should be recorded in a test report.
  • Variations in flow rate and spray distribution due to wear and tear should be determined  using the sampling method described and the test liquid stated in the Full Standard.
    • The pressures under which the test should be carried out are described in the Full Standard.
    • The test conditions should be recorded in a test report.
    • Results should be recorded in a test report.
  • The spray angle should be measures using the technique described in the Full Standard.
  • The size of the spray droplets should be measures using the technique described in the Full Standard.

The Test Report

  • Annex B of the Full Standard describes a suitable structure for the test report.
  • The test report should contain general information such as the test reference number, the testing laboratory, chief engineer.
  • Technical details of the nozzles including manufacturer catalogue reference, etc. should be included.
  • The full results of each test and the conditions under which it was performed should be recorded.
  • The report should be signed and dated by the chief engineer.

A British Standard nor this summary does not, necessarily, include all the necessary information for correct implementation of the Standard to any specific application. This is purely the responsibility of the user. Standards are updated by either amendment or revision. Users should ensure that they are using the latest version.


The full text of this Standard can be obtained from the British Standard Institution

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