Some standard content:
Mechanical Industry Standard of the People's Republic of China
JB/T5114-1991
Intermittent Sprayer
Published on May 18, 1991
Test Method
Implemented on January 1, 1992
Published by the Ministry of Machinery and Electronics Industry of the People's Republic of China
Mechanical Industry Standard of the People's Republic of China
Intermittent Sprayer
Subject Content and Scope of Application
Test Method
JB/T5114-1991
This standard specifies the conditions, procedures and methods for the performance test and reliability test of hand-held sprayers (hereinafter referred to as sprayers) that use piston manual pumps and cone mist nozzles for intermittent spraying. This standard applies to intermittent sprayers for sanitary insecticides and disinfection and sterilization, and intermittent sprayers for other purposes should also be implemented as a reference. 2 Reference standards
GB6959
ZB B91 015
3 Terms
Terminology of plant protection machinery
Test method for hand-held electric centrifugal sprayer3.1 The median diameter of droplet volume (VMD) shall be in accordance with Article 5.19 of GB6959. 3.2 The width of droplet spectrum of Dv10 and D90 shall be in accordance with Articles 3.1 to 3.3 of ZBB910153.3 Normal spray
When the trigger frequency of the sprayer is 60 to 80 times/min, the atomization is uniform, and there is no obvious large droplet sandwiched in the mist flow. 3.4 Spray volume at one time
When the sprayer sprays normally, spray 20 times and calculate the arithmetic mean of the spray volume. Test conditions
4.1 Environmental requirements:
Degrees: 5~30℃
b. Relative humidity: >50%;
c, indoor temperature 20±5℃; wind speed should be 0 (for tests in 7.3, 7.4, 7.7, and 7.8) 4.2 Test liquid:
a, clean water without any suspended solid impurities; b. Clean water with 1% (by weight) black soluble dye (for tests in 7.4 and 7.8) 5 Test instruments and equipment:
a. Laser particle spectrometer;
b. Optical microscope (equipped with micrometer): c, reliability test bench;
d. Stopwatch, precision ±0.5s;
e, measuring cylinder: one each of 10, 20, 50, 200, and 500mL; f. Blood sampling: 10.
Approved by the Ministry of Machinery and Electronics Industry on May 18, 1991 and implemented on January 1, 1992
Test items:
a. Determination of sprayer sealing performance;
b, Determination of sprayer performance;
JB/T5114-1991
c. Determination of spray uniformity, spray angle, and residual liquid volume;
e. Determination of spray volume;
f. Determination of range;
g. Determination of sprayer reliability;
h. Strength test of liquid bottle;
i. Corrosion resistance test of seal.
7 Test methods
7.1 Determination of sprayer sealing performance
7.1.1 When the sprayer is filled with the test liquid, place it horizontally and visually inspect each joint for liquid leakage. 7.1.2 When the sprayer sprays normally (continuous working time is not less than 1min), visually check whether there is leakage or dripping at the nozzle and each connection. 7.2 Performance measurement of sprayer
7.2.1 After the test liquid is drained from the sprayer pipeline (spraying parts and water suction pipe), put it into the liquid bottle filled with test liquid, and measure the number of times the trigger is pulled to spray out mist.
7.2.2 After the sprayer completes the performance test in 7.2.1, let it stand for 24 hours and measure the number of times the trigger is pulled to spray out mist. 7.3 Spray uniformity
When the sprayer sprays normally, visually check whether the spray is uniform, whether there are obvious large droplets in the spray flow and dripping at the nozzle. 7.4 Determination of spray capsule angle
There are two ways to determine the spray angle:
a, photographic method: use a camera to take a picture of the spray state, and use a protractor to measure the spray angle on the photo; b, direct measurement method: place a piece of millimeter grid paper on the horizontal surface directly in front of the spray nozzle (the nozzle is 5~10mm above the paper surface), the spray direction is parallel to the ground, when the spray is normal, spray twice continuously, and use a protractor to directly measure the spray capsule angle, as shown in Figure 2
7.5 Determination of residual liquid volume
Spray angle
JB/T5114-1991
The linear net division with a star boundary
limit on the jet
Pull the trigger of the sprayer until it cannot spray normally due to insufficient liquid volume, and pour the residual liquid in the liquid bottle into a measuring cylinder not larger than 20mL for measurement.
7.6 Determination of spray volume
When the sprayer sprays normally, collect the mist liquid with a measuring cylinder of 20mL, spray 20 times, calculate the arithmetic mean of the spray volume, and record the measurement results in Table 1.
7.7 Determination of droplet spectrum
7.7.1 Laser particle spectrometer measurement method
The distance between the nozzle and the sampling point is 100mm. When the sprayer sprays normally, the volume median diameter (VMD) and the droplet spectrum width are directly measured on the laser particle spectrometer.
7.7.2 Microscope measurement methodbzxz.net
The nozzle is 0.5m above the ground. Ten blood samples are evenly placed 15cm above the ground in the longitudinal spray range directly in front of the nozzle. Then evenly apply a layer of vaseline on the bottom of the blood sample, heat and mix, add No. 10 motor oil, and the thickness is 2~3mm. When the sprayer sprays normally, spray continuously for 4 times. After stopping spraying, observe the sampled blood one by one under a microscope and read the droplet diameter. Measure 100 droplets in each sampled blood. Then classify and count the droplets of different sizes (the size classification is selected according to the size of the collected droplets). The measurement results are recorded in Table 2 and calculated.
7.8 Range measurement
7.8.1 Mist range measurement
The nozzle is 0.5m above the ground. In front of the nozzle, 0.2m above the ground, lay a 5cm wide and 2m long millimeter grid paper. The spray direction is parallel to the ground. When spraying into mist, spray continuously for 4 times. After 3min, use a 5x magnifying glass to observe the fog points on the millimeter grid paper and measure the distance with the farthest droplet density of 10 points/cm2. The measurement results are recorded in Table 3. 7.8.2 Linear range measurement
The nozzle is 0.5m above the ground, a piece of white paper is placed on the ground directly in front of the nozzle, and the nozzle nut is adjusted to the best spray line condition, with the spray direction parallel to the ground, and spray 4 times continuously, and the farthest distance reached by the droplets is measured. The measurement results are recorded in Table 3. 7.9 Sprayer reliability test
JB/T 5114 - 1991
Use clean water as the test liquid, install the sprayer on the reliability test bench, and pull the trigger at a frequency of 60 to 80 times/min until the sprayer is damaged and cannot work normally, and record the total number of times the sprayer trigger is pulled. The test results are recorded in Table 4.7.10
Strength test of liquid medicine bottle
The liquid medicine bottle of the sprayer is placed under room temperature (20±5℃) with clean water, bottom of the bottle facing downward, and falls freely onto the cement floor from a height of 1m above the ground for two consecutive times to check whether the liquid medicine bottle is broken or leaking.Corrosion resistance test of seal
Remove the seal from the sprayer, soak it in a mixture of 40% kerosene, 20% toluene and 40% xylene at 21~27℃ for 72h, hang it in air at 21~27℃ to dry for 24h, and then install the seal in the original position of the sprayer. Observe whether the sprayer can work normally.
Test report
8.1After the sprayer test is completed, the information and data should be sorted and analyzed, and a test report should be written. 8.2 The test report should include: a. Test purpose, location and test overview; b. Characteristics of the test prototype; c. Test results and analysis; d. Test conclusion. Table 1 Spray Product model: Manufacturer name: Determination: Test date: Test location: Spray volume after 20 turns Record: Average spray volume Product model: Manufacturer name: Room temperature °C Droplet classification number Droplet diameter classification range de-d, Droplet classification average diameter d,
Number of droplets at each level
Sum of droplet volumes at each level
(a) *m
JB/T 5114 -1991
Calculation table for droplet spectrum determination
Test date:
Test location:
Humidity%
Percentage of droplet volume at each level in the total droplet volume (@) xm
Cumulative volume percentage
Volume median diameter VMD
Droplet spectrum width
Dy10~D.90
Determination:
Table 3 Radiation
Product model:
Manufacturer name:
Determination:
Mist range
Record:
Test date:
Test location:| |tt||Record:
Measurement method
Linear range
Product model:
Manufacturer name:
Cumulative number
Measurement:
Additional instructions:
Start time
JB/T5114-1991
End time
This standard is proposed and managed by the Chinese Academy of Agricultural Mechanization Sciences. This standard is drafted by the Nanjing Agricultural Mechanization Research Institute of the Ministry of Agriculture. The drafters of this standard are Liu Zhenxiu, Yang Ximing and Wang Zhongqun. Test
Test date:
Test location:
Pure working time
Record:
Times/min
Number of triggering
People's Republic of China
Mechanical industry standard
Test method for intermittent sprayer
JB/T 5114 - 1991
Published by the Mechanical Science Research Institute
Printed by the Mechanical Science Research Institute
(No. 2, Shouti South Road, Beijing
Postal Code 100044)
Print Sheet 5/8
Format 880×1230
Word Count 10.000
First Edition September 1991
First Printing September 1991
Print Quantity 1-500
Price 1.00 Yuan
Mechanical Industry Standard Service Network: http://www.JB.ac.cn1661 - s /
Tip: This standard content only shows part of the intercepted content of the complete standard. If you need the complete standard, please go to the top to download the complete standard document for free.