JB/T 6280.2-1992 Test methods for large electric sprinkler irrigation machines
Some standard content:
Mechanical Industry Standard of the People's Republic of China
JB/T6280.2—92
Electric Large Sprinkler
Published on June 10, 1992
Test Method
Implemented on July 1, 1993
Published by the Ministry of Machinery and Electronics Industry of the People's Republic of China
Subject Content and Scope of Application·
Cited Standards.·
Terms and Terms
Test Conditions and Preparation
Performance Test
Production Test
Test Report
Appendix A Main test instruments, meters and tools (reference parts). Times
(1)
·(1)
：(26)
Mechanical Industry Standard of the People's Republic of China
Test methods for large electric sprinklers
Subject content and scope of application
JB/T6280.292
This standard specifies the performance test and production test of large electric sprinklers used for sprinkler irrigation of agricultural and pastoral crops such as wheat, beans, sorghum, corn, forage, fruits, vegetables and sugarcane.
This standard is applicable to electric center-pivot sprinklers (electric circular sprinklers, hereinafter referred to as circular sprinklers) and electric translation sprinklers (hereinafter referred to as translation sprinklers). Other large sprinklers can be used for reference. 2 Reference standards
GB1032
GB5667
GB5895
JB/T6280.1
3 Terminology
Test methods for three-phase asynchronous motors
Test methods for agricultural machinery production
Test methods for rotating sprinkler heads
Test methods for metal thin-walled pipes and fittings for sprinkler irrigationTechnical conditions for large electric sprinkler irrigation machines
The terminology in this standard refers to the relevant provisions of JB/T6280.1 and GB5667. 4 Test conditions and preparation
4.1 The test prototype should be representative and must have a quality inspection certificate and instruction manual. During the entire test period, except for routine maintenance and adjustment as specified in the instruction manual, no other adjustments, replacements or repairs are allowed. 4.2 See Appendix A (reference parts) for test instruments, meters and appliances. They should be calibrated and qualified by the legal measurement unit before use. 4.3 The water volume of the water source at the test site should meet the sprinkler irrigation flow requirements under the rated working conditions of the irrigation machine, and the water quality should meet the relevant provisions of Article 5.2.1 of JB/T6280.1.
4.4 The size of the test field plot should meet the requirements of the irrigation machine performance test. The slope should meet the requirements of the irrigation machine climbing ability. The relevant test field characteristics are recorded according to the items in Table 1.
4.5 The meteorological conditions should meet the relevant provisions of Article 5.2.1 of JB/T6280.1. 5
Performance test
5.1 Purpose
Through a comprehensive performance test, assess whether the irrigation machine prototype meets the design indicators. 5.2 Technical parameter determination
Before the test, the test prototype should be fully inspected and adjusted to ensure that it has a good technical state. The main technical parameters are measured according to the items listed in Table 2, and the results are recorded in Table 2.
5.3 Hydraulic performance measurement
5.3.1 General requirements
5.3.1.1 The hydraulic performance test should be carried out under the rated working conditions of the filling machine. The deviation of the man-machine flow, man-machine pressure and terminal pressure of the filling machine should be controlled within the range of ±5%
Approved by the Ministry of Machinery and Electronics Industry on June 10, 1992 and implemented on July 1, 1993
JB/T6280.2-92
5.3.1.2 During the test, the average wind speed should not exceed 1.5m/s, the maximum wind speed should not exceed 3.0m/s, the wind direction change should not exceed 20°, and the temperature should be within the range of 4 to 30℃, or limited to the range determined by negotiation between the supply and demand parties. 5.3.1.3 The rain gauge used to collect the rainfall from the sprinkler should comply with the provisions of Article 6.2.1 of GB5670.3. 5.3.1.4 The relevant test conditions in the test shall be measured according to the items listed in Table 3, and the results shall be recorded in Table 7. 5.3.2 Spraying uniformity test
5.3.2.1 Rain gauges shall be arranged in two or more rows in a straight line in the direction perpendicular to the running track of the irrigation machine, and the spacing between rain gauges in the same row shall be equal. When the distance between nozzles is not more than 5m, the distance between rain gauges shall not be more than 3m; when the distance between nozzles is more than 5m, the distance between rain gauges shall not be more than 5m. For irrigation machines with nozzles arranged at equal distances, the distance between rain gauges shall not be an integral multiple of the distance between nozzles (see Figures 1 and 2 for the plan layout of rain gauges). The number of rain gauges arranged in each row shall be no less than 80, and rain gauges can be placed away from the wheels. The layout of rain gauges shall be recorded in Table 4. Central support axis
Water supply pipeline
End spray gun
The ith rain gauge
Figure 1 Schematic diagram of rain gauge layout for testing the spraying uniformity of a circular irrigation machine O-Rain gauge placement position; 1 Spacing between rain gauges in the same row, m; L-Distance between the outermost rain gauges in adjacent rain gauges, L<50m; ri-Distance from the ith rain gauge to the central support axis, mEnd spray gun
Driving trolley
Water supply pipeline
Demand gauge
End spray gun
Figure 2 Schematic diagram of rain gauge layout for testing the spraying uniformity of a translational irrigation machine O-Rain gauge placement position; I Spacing between rain gauges in the same row, m; L Spacing between adjacent rain gauges, L<50m; 5.3.2.2 Rain gauges should be placed so that they are not hindered by crop stems, leaves, etc. when receiving raindrops. The edge of the rain gauge should be kept horizontal, at least 1m lower than the nozzle height of the 2
JB/T6280.2--92
machine.
5.3.2.3 The test position of the wind direction and anemometer should be no more than 200m away from the edge of the test site and no less than 2m high. This position should be able to characterize the wind conditions of the test site.
5.3.2.4 The wind speed and wind direction relative to the direction of the rain gauge row should be measured every 15 minutes during the test and recorded in Table 3. The average wind speed, maximum value and wind direction range are calculated and recorded in Table 7. 5.3.2.5 If the ground of the test field is not horizontal, a ground height contour diagram should be drawn along each row of rain gauges. 6 Adjust the percentage timer to control the continuous or intermittent operation of the irrigation machine. The intermittent operation should make the average spraying water depth not less than 15mm. 5.3.2.6
When the irrigation machine passes through the rain gauge row, after a certain rain gauge has completely finished receiving water, the water volume in the rain gauge should be measured as soon as possible, 5.3.2.7
converted to the sprinkler water depth, and recorded in Table 4. At the same time, measure the water receiving time of every other rain gauge in a certain rain gauge row, and record it in Table 4. 5.3.2.8 During data analysis, abnormal data caused by leakage, tilt or other abnormal reasons of the rain gauge can be eliminated. The eliminated abnormal data should not exceed 3% of the total measured data, otherwise the test should be repeated. The number of all abnormal data and their causes should be recorded in Table 4. 5.3.2.9 Rain gauge data outside the irrigation machine length or 75% of the spray gun range at the end of the irrigation machine can be eliminated during data analysis. The spray gun range shall be in accordance with the provisions of Articles 4.2 and 7.1.3 of GB5670.3 5.3.2.10 Axis irrigation machine
a. Rain gauges should be arranged radially outward from the central support axis. The distance between the outermost rain gauges of two adjacent rain gauges should not be greater than 50m (see Figure 1). If the supply and demand parties agree, rain gauges close to the central support axis and 10% of the total length can be removed during data analysis.
Spraying uniformity coefficient is expressed by Heermann-Hein uniformity coefficient and calculated according to formula (1): c.
Can=100×(1-
wherein: CH—Hermann-Hein uniformity coefficient, %; n
ZIhi-hIn
—the ordinal number of the rain gauge used in data analysis. The rain gauge closest to the central support axis, 1: the rain gauge farthest from the central support axis, =n;
hThe irrigation depth of the i-th rain gauge, mm;
rThe distance from the ith rain gauge to the central support axis, m; h—Average irrigation water depth of the rain gauge, h=Zh;r2n, mm. 5.3.2.11 Translation irrigation machine
Rain gauges are arranged along a straight line parallel to the irrigation machine water supply pipeline. Each row of rain gauges should exceed the effective length of the algae machine. The distance between rain gauges should not exceed 50m. Rain gauges are not placed in areas where crops cannot be planted on the irrigation machine water supply channel, main drive trolley and other running roads (see Figure 2). The spraying uniformity coefficient is expressed by the Christiansen (JEChristiansen) uniformity coefficient and calculated according to formula (2): b.
ZIhi-hl
Cc=100×(1）
Wherein: Cuc--Christiansen uniformity coefficient, %; n--the number of rain gauges used for data analysis; h--the sprinkler irrigation depth of the ith rain gauge, mm; h--the average sprinkler irrigation depth of the rain gauge, h-
5.3.2.12 Spraying uniformity coefficient
a. According to formula (1) or formula (2) and the data of a row of rain gauges used in Table 4, calculate the uniformity coefficient of each rain gauge row respectively. (2)
JB/T6280.2--92
b. According to formula (1) or formula (2) and the data of all rows of rain gauges used in Table 4, calculate the comprehensive spraying uniformity coefficient. This coefficient is the sprinkler spraying uniformity coefficient.
C. All calculation results are recorded in Table 7
5.3.2.13 Sprinkler irrigation water depth distribution diagram
Based on the data in Table 4, draw the sprinkler irrigation water depth distribution diagram corresponding to the distance from each row of rain gauges to the water inlet of the irrigation machine. 5.3.3 Sprinkler irrigation intensity
5.3.3.1Based on the relevant data in Table 4, calculate the point sprinkler irrigation intensity at each rain gauge. Calculate according to formula (3), and the calculation results are recorded in Table 4.
Where: P—point sprinkler irrigation intensity of the i-th rain gauge, mm/h;—sprinkler water depth of the i-th rain gauge, mm; h
-water receiving time of the i-th rain gauge, h.
5.3.3.2 When analyzing data, the data of the rain gauge of the measured water receiving time in Article 5.3.2.7 of this standard shall be used, and the simple rainfall data that has been eliminated in Article 5.3.2 shall not be used.
5.3.3.3 Circular irrigation machine
According to the relevant data in Table 4, a linear regression equation of the sprinkler irrigation intensity p and the distance to the central support axis shall be established. b.
Linear regression equation:
p=a+br
Where: p
Sprinkler irrigation intensity, mm/h;
Regression intercept, 4
(-)(pi-)
Point sprinkler irrigation intensity of the ith rain gauge, mm/h;-Average sprinkler intensity, π=
Pimm/h
Distance from the ith rain gauge to the central support, m; Average distance from the rain gauge to the central support, m
The number of rain gauges used in data analysis; im
The ordinal number of a rain gauge used in data analysis, the rain gauge closest to the central support, π=1; the rain gauge farthest from the central support, π=m; b—regression coefficient, b=p-ar;
The average distance of the point sprinkler intensity to the central support, m. Solve the linear regression equation and record it in Table 7. C.
Calculate the maximum sprinkler intensity along the length of the sprinkler according to the regression equation, according to formula (5): Pn=a+bL.
Where: Pm——maximum sprinkler intensity of the sprinkler, mm/h; L is the length of the whole machine. m.
d. The maximum sprinkler intensity pm value is the sprinkler intensity parameter of the fulcrum sprinkler, recorded in Table 7. 5.3.3.4 Translation sprinkler
Calculate the average sprinkler intensity according to the relevant data in Table 4, and calculate according to formula (6): a.
Where: P—average sprinkler intensity, mm/h; m
JB/T6280.292
The number of rain gauges adopted for data analysis; p
—the ordinal number of the rain gauge adopted for data analysis, if the rain gauge adopted at the outermost end of one end of the sprinkler.i=1; then the rain gauge adopted at the outermost end of the other end, =m;
P-the point sprinkler intensity of the i-th rain gauge, mm/h. b. Average sprinkler intensity is the sprinkler intensity parameter of the horizontal sprinkler, recorded in Table 7. 5.3.3.5 Sprinkler intensity distribution diagram
Draw the sprinkler intensity distribution diagram corresponding to the distance to the sprinkler inlet according to Article 5.3.3.3 or Article 5.3.3.4 and the relevant data in Table 4.
5.3.4 Raindrop diameter
a. Measure the raindrop diameter of the sprinkler by the filter paper method. Use special color powder filter paper, the surface of which is coated with color powder mixed with dawn red and talcum powder in a ratio of 1:10. The filter paper should have a uniform texture. The diameter of the round filter paper should not be less than 150mm. b. Take a sample at each span of the sprinkler to measure the raindrop diameter once. When sampling, place the color powder filter paper flat in a box with a pull-out cover. The box should be large enough to prevent the filter paper from wrinkling, and the box depth should be 10 to 20mm. At a distance of about two-thirds of the range of a certain nozzle, quickly pull open the cover plate, and close the cover plate as soon as raindrops fall. Then measure the diameter of the raindrops on the filter paper after they dry. Only the maximum and minimum imprint diameters are recorded in Table 5.
c. Each time the filter paper is sampled, there should be no less than 5 raindrops, otherwise the same part of the sprinkler should be sampled again. d The raindrop diameter is calculated according to formula (7):
Where: d—raindrop diameter, mm;
D—diameter of the raindrop imprint on the toner filter paper, mm; α—calculation coefficient, which is determined specifically based on the toner filter paper b calculation index, which is determined specifically based on the toner filter paper. Calculate the maximum and minimum raindrop diameters for each sampling and record them in Table 5. e. Find the maximum and minimum raindrop diameters from Table 5 as the maximum and minimum raindrops of the sprinkler and record them in Table 7. 5.3.5 Spray width of sprinkler
a. The effective radius of the circular irrigation machine is the sum of the length of the whole machine and 75% of the range of the end spray gun. The measured effective radius of the support irrigation machine is recorded in Table 7.
b. The effective length of the translation irrigation machine is the sum of the length of the whole machine and 75% of the range of the end spray gun. The measured effective length of the translation irrigation machine is recorded in Table 7.
5.3.6 Depth of water spraying at one time
Use a certain rainfall simple drainage arranged in Article 5.3.2, measure the water volume received by each rain gauge in accordance with Article 5.3.2.7, and convert it into a.
sprinkler irrigation depth.
b. Adjust the irrigation machine percentage timer to 100% percentage, measure the sprinkler irrigation water depth of each rainfall simple drainage through rainfall simple drainage, and record it in Table 6. C. Adjust the percentage timer of the fan machine to the minimum percentage value, and measure the sprinkler water depth of each rain gauge through simple rainfall, record it in Table 6, and indicate the percentage value.
d. According to the calculation formula and data analysis method of the sprinkler water depth of the sprinkler specified in Article 5.3.2, use the adopted data in Table 6 to calculate the minimum average sprinkler water depth and the maximum average sprinkler water depth of the sprinkler, and record the calculation results in Table 7. 5.4 Synchronous performance test
5.4.1 Synchronous control angle
a. Measure the synchronous control angle of the synchronous control mechanism of the tower control box on each middle span tower vehicle. 5
JB/T6280.2—92
b. When the adjacent span trusses are on the same straight line, the outer tower vehicle runs until the inner tower vehicle starts running, and the relative displacement angle between the adjacent trusses is the synchronous control angle. Measure the arc length of the outer tower car relative to the inner tower car, and record it in Table 8.
c. The synchronous control angle is calculated according to formula (8):
Where: α——synchronous control angle, ();
1 The arc length of the outer tower car relative to the inner tower car, m; R The length of the outer truss, m.
d. The measurement and calculation results are recorded in Table 8
5.4.2 Random inspection of safety control angle. Randomly select the tower control boxes of two middle span tower cars and test them separately. Artificially cause the tower synchronization mechanism to fail, that is, the outer tower car does not stop when it runs beyond the synchronous control angle, and continues to run to a certain angle, the synchronous safety protection switch cuts off the circuit, and the irrigation machine stops running and spraying water. Measure the relative displacement angle between the two adjacent trusses when it stops. The measurement and calculation method shall be in accordance with the relevant provisions of Article 5.4.1, and the measurement and calculation results shall be recorded in Table 8.5.4.3 Measure the wheel track width of the tower car at the end of the filling machine and the tower car in the middle. The wheel track should be rolled by the filling machine in the positive and reverse directions for no less than 2 times. The measurement results shall be recorded in Table 8, and the tower car position shall be recorded. 5.5 Performance test
5.5.1 The performance test shall be carried out under the water spraying operation condition with the minimum percentage value of the percentage timer. 5.5.2 When the filling machine is running in the field, observe whether there is any slippage or delay in the running process of each tower car, observe the temperature rise of the motor and whether there are abnormal phenomena such as noise and vibration of the motor reducer and wheel reducer, and record them in Table 9.5.5.3 Climbing ability test
5.5.3.1 Select a tower car in the middle of the filling machine to conduct a climbing ability test. 5.5.3.2 Along the selected test tower wheel running track, artificially build a slope or use the natural field slope that meets the requirements. The length of the climbing and descending slopes should be no less than twice the wheelbase of the tower wheel, the slope should meet the requirements of the maximum climbing capacity of the irrigation machine, and the width of the slope should be no less than twice the tire width. The roadbed of the slope should be solid enough to withstand the rolling pressure of the tower wheel. The soil texture, firmness and water holding capacity of the slope surface should be close to the field soil conditions.
5.5.3.3 Observe whether the tower truck can climb the slope smoothly. During the climbing process, observe the temperature rise of the motor. And whether the motor reducer and wheel reducer have abnormal phenomena such as noise and vibration, and make a record. 5.5.4 Record the measurement results in Table 9 according to the items listed in Table 9. 5.6 Safety protection performance test
Sampling various safety protection systems of the filling machine. When the filling machine is in the protected working condition or the filling machine cannot work normally due to artificial faults, observe whether the safety protection system of the filling machine can play a protective role. Test according to the items listed in Table 10, and record the measurement results and the position of the tower in the sampling in Table 10.
5.7 Mechanical performance measurement of main components
5.7.1 Strength measurement of truss reinforcement
5.7.1.1 Randomly check one middle span frame and use tension and compression sensors to test the tension of the truss reinforcement. a: If the materials and cross-sectional dimensions of each truss reinforcement are equal, only test the tension of the reinforcement at one end of the truss. b. If the materials and cross-sectional dimensions of the truss reinforcement bars are different, the tension of the truss end reinforcement bars and other reinforcement bars of different materials or cross-sectional dimensions close to the truss end side shall be tested separately. 5.7.1.2 The reinforcement tension test shall be carried out under two conditions: no water in the irrigation machine and sprinkler operation. 5.7.1.3 The measurement shall be carried out according to the items listed in Table 10, and the measurement and calculation results shall be recorded in Table 10.5.7.2 Measurement of the output torque, system efficiency and transmission efficiency of the motor reducer 5.7.2.1 The test shall be carried out in accordance with the test methods specified in the relevant standards. 6
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5.7.2.2 The measurement shall be carried out according to the items listed in Table 12, and the measurement and calculation results shall be recorded in Table 12.5.7.3 Measurement of the output torque and transmission efficiency of the wheel reducer 5.7.3.1 The test shall be carried out in accordance with the test methods specified in the relevant standards. 5.7.3.2 Carry out the measurement according to the items listed in Table 13, and record the measurement and calculation results in Table 135.8 Hot-dip galvanizing layer test
The galvanizing layer test of hot-dip galvanized steel parts shall be carried out in accordance with Article 2.13 of GB5895. 5.9 Collector ring insulation strength test
Connect the collector ring slip ring to the ground with a voltage of 50Hz and 1800V, and observe whether there is breakdown or flashover after a 1-minute withstand voltage test. 5.10 Towing test
5.10.1 Adjust the filling machine to the towing state and connect all towing wire ropes. 5.10.2 Use a 55kW crawler tractor to tow along a flat road. The start should be slow and the straight-line speed should be driven. The towing speed should be 2-3km/h.
5.10.3 The towing distance is 500m. Observe whether it is smooth. 6 Production test
6.1 Purpose
The prototype shall evaluate the reliability, economy, performance stability, regional adaptability, adjustment and maintenance convenience, durability and safety of the main components and wearing parts under actual production conditions. 6.2 Test conditions and requirements
It shall comply with the relevant provisions of Article 5.2.1 and Article 5.2.4.2 of JB/T6280.1. 6.3 The time classification of production test shall refer to the provisions of Article 2.3 of GB5667. 6.4 Production test time
The production test shift time shall not be less than 500h. 6.5 Test items and methods
6.5.1 Production assessment
6.5.1.1 Test records shall be kept truthfully throughout the production test. Determine the sprinkler irrigation operation volume, unit energy consumption and various time consumption of each shift, and fill in the production diary. The time shall be accurate to "min\ and recorded in Table 14. Then, the hourly productivity of the operation and the hourly productivity of the shift shall be calculated and the results shall be recorded in Table 15.
6.5.1.2 Observe the operation of the prototype in the test field and its adaptability to crop spraying operations. 6.5.1.3 Observe, sample or re-test the main performance of the prototype (spraying uniformity, synchronization performance), at least once in the middle and late stages of the test. 6.5.1.4 Record the deformation and damage of the prototype parts and components and the reasons in detail, and take photos or draw drawings when necessary. Calculate the pure working time. Make records according to the items listed in Table 16. 6.5.1.5 Observe or measure whether the adjustment, maintenance and disassembly of each part of the prototype are convenient. 6.5.1.6 Observe or measure the convenience and safety of the operation of the prototype. 6.5.2 Production verification
During the production assessment, the prototype shall be verified for no less than 3 consecutive shifts, and the working time of each shift shall be no less than 6h, with the time accurate to "s\. The various time consumption, spraying operation volume and main energy consumption of each shift are accurately recorded in Table 17. 6.6 Calculation of technical and economic indicators
Calculate the relevant technical and economic indicators and record the results in Table 18. 6.6.1 Productivity
6.6.1.1 Pure working hour productivity is calculated according to formula (9): EQahe
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Pure working hour productivity, ha'mm/h;
Where: E
Q——operating area of the shift determined by production, ha; heb—average sprinkler water depth of the shift determined by production, mm; T
Working time of the shift determined by production, h.
6.6.1.2 The hourly productivity of the operation is calculated according to formula (10): EQhb
Wherein: E, — hourly productivity of the operation, ha'mm/h; Q
The shift operating area during the production assessment period, ha; The average sprinkler water depth of the shift during the production assessment period, mm; - The shift working time during the production assessment period, h. 6.6.1.3 The hourly productivity of the shift is calculated according to formula (11): EQh
Wherein: E
The hourly productivity of the shift, ha'mm/h;
The shift time during the production assessment period, h.
6.6.2 Unit energy consumption is calculated according to formula (12): G,
Where: GWww.bzxZ.net
EQeheb
Energy consumption per unit of work, kW·h/(ha'mm) or kg/(ha'mm)Gm-main energy (electricity or fuel) consumption of the production check shift, kW·h or kg. 6.6.3 Reliability in use is calculated according to formula (13): K
Where: K-
Reliability in use, %;
ET,+ET
-Time required for troubleshooting of each batch of filling machine during the production aging period, h6.6.4 Convenience of adjustment and maintenance is calculated according to formula (14): Ka
Where: K--Adjustment and maintenance convenience during the production assessment period, %;X100
T--Time required for each adjustment and maintenance of the filling machine during the production assessment period, h. 6.7 Assessment of average working time before first failure (10)
·(11)
(12）
6.7.1 During production and use, the cause of the prototype failure and its impact on production shall be recorded in detail. The cumulative working time before the first failure of each prototype is counted, and the results are recorded in Table 196.7.2 The average working time before the first failure is calculated by regular trimming, according to formula (15) and formula (16): a. Point estimate:
MTTFF=Et+Et
b. Lower limit of one-sided confidence interval:
Where: MTTFF
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(MTTFF)L-
2(2t+t)
X(α,2r.+2)
-average working time before the first failure (point estimate), h; (MTTFFL
-average working time before the first failure (lower limit of one-sided confidence interval), h: F,-the total number of prototypes that have the first failure (except minor failures) during the test (when r,=0, take T,=1); (1 6)
Among the tested (or investigated) prototypes, the sum of the working time Et
before the first failure (except minor failures) of the prototypes, h;
Zt. -Among the tested (or investigated) prototypes, the sum of the working time of the prototypes that did not fail, h;X(α,2r.+2)--the X quantile with a confidence level of α and a degree of freedom of 2r.+2. 7 Test report
7.1 Relevant data and information should be sorted out in a timely manner during the test. After the test, the results of observation, measurement, calculation and analysis should be verified, sorted and summarized, and performance test and production test reports should be written. 7.2 Test report content
a. Test overview: state the purpose and requirements of the test, the name, model and number of prototypes, the research and development unit and the prototype providing unit, the units participating in the test, the time and place of the test, and the amount of work completed. b.Prototype introduction: introduce the structure, main features and main working principle of the prototype. C. Test conditions and analysis: briefly describe the test conditions, analyze whether they are representative and their impact on the test; state the test instruments and equipment used.
d. Test results and analysis: summarize the data measured and the phenomena observed in the test, and conduct a comprehensive evaluation of the prototype according to Articles 2.1 and 3.1.
e. Conclusion: make a clear conclusion based on the purpose of the test and the analysis of the test results f. Attachments: relevant test data tables, figures and photos, etc. 9
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