BS EN 13739-2:2011 pdf download – Agricultural machinery — Solid fertilizer broadcasters and full width distributors — Environmental protection Part 2: Test methods
Transverse test  Devices for receiving fertilizer for transverse distribution The collecting containers shall have top external dimensions of 500 mm × 500 mm and precautions shall be taken to minimise spillage by ricochet out of the containers.
NOTE The wall thickness at the top edge should be equal or smaller than 1,5 mm. An example of a funnel shaped container is shown in Figure B.1. The container can also be a rectangular or square vertical section. Test collecting containers with external top dimensions of 250 mm x 500 mm could be used side by side if their collected amount is added together. Existing collecting containers of 250 mm x 1000 mm could be used since it has been shown that the result corresponds to 500 mm x 500 mm containers. 90 % to 110 % of the expected amount of test material shall be collected. This requirement is checked by comparing the application rate calculated from the collecting containers with the application rate obtained in the flow rate test, when using test material from the same batch in both measurements.
5.3 Rotating test
5.3.1 Measurement of the angular position of the spreader The measurement of the angular position between the row of collecting containers and the spreader axis shall be done with a sensor. The precision of this angle measurement shall be better than 0,1°.
5.3.2 Data acquisition device The angular position of the spreader, the fertilizer mass into the spreader hopper, the fertiliser mass into each of the collecting containers, and the acquisition and storage time shall be measured and registered with a frequency higher or equal to 5 Hz. The response time of the measurement devices should be at least 0,2 s. Data shall be filtered with a Bessel lowpass at 0,5 Hz.
5.3.3 Devices for receiving fertilizer for spread pattern distribution The collecting containers shall have top external dimensions of 500 mm × 500 mm and precautions shall be taken to minimise spillage by ricochet out of the containers. NOTE The wall thickness at the top edge should be equal or smaller than 1,5 mm. An example of a funnel shaped container is shown in Figure B.1. The rotation axis of the rotating carrier shall be located on the axis between the containers centres of the containers’ row. See Figure 4. 90 %-110 % of the expected amount of test material shall be collected. This requirement is checked by comparing the application rate calculated from the collecting containers with the application rate obtained in the flow rate test, when using test material from the same batch in both measurements.
5.4 Test site
The tests shall be carried out on an even, horizontal and hard surface. The air velocity shall be less than 2 m/s during the tests. The air humidity shall be less than 65 % and the temperature 10 °C to 25 °C. The actual values of air humidity, temperature and air velocity shall be stated in the test report. If tests are done outdoors, this shall also be stated in the test report.
Precautions shall be taken to eliminate ricochets from the ground into the collecting containers.
The test site shall be fully described in the report.
5.5 Handling of test materials during the tests
It is important that the test material is not exposed to the air more than necessary. The maximum exposure time before the test starts is four hours.
All samples, for later analysis of physical properties, shall be immediately put under airtight storage.
6 Test methods
6.1 Contact with obstacles
For machines equipped with a boom the following test is performed:
An obstacle is placed along a horizontal test track. The machine is moved forward with the speed of 8 km/h. The boom shall hit the obstacle at 90 % to 100 % of the half boom width out measured from the middle of the track (see Figure 2 in EN 13739-1:2011).
The boom movement is observed during the test. After the test the boom section is inspected for any damage and the location of damage is noted in the test report.