Qingdao Zhongbang Liquid Rejection Efficiency Tester Instructions
2020-02-27 12:08:47
First, the main purpose
ZF-631 liquid-repellent efficiency testing device is developed according to the latest national standard GB24540-2009 "protective clothing protective clothing for acid and alkali chemicals" and is used to determine the liquid-repellent efficiency of fabrics made of protective garments made of acid and alkali chemicals.
Second, the instrument features and technical indicators
1. Semi-cylindrical organic glass transparent tank with an inner diameter of (125 ± 5) mm and a length of 300 mm.
2, PTFE needle anti-acid corrosion; injection pinhole diameter of 0.8mm; tip is flat.
3, automatic injection system, continuous injection of 10mL reagent within 10s.
4, automatic timing, alarm system; LED display test time, accuracy 0.1S.
5, the power supply: 220Vac50Hz100W
Third, the applicable standards
GB24540-2009 "protective clothing protective clothing for acid and alkali chemicals"
IV. Preparation before the test
1. Place the 500ml beaker with the reagent in the cavity below the electrical box (remove the front bezel of the cavity with a Phillips screwdriver), place the pipette in the solution, and fix it. Be careful to prevent the pipette from being tested. During the shift.
2. Place a 200ml beaker inside the upper case and place the tube labeled “Leakage Solution Out†inside the beaker to collect the leaked fluid.
3, the back of the instrument has a power cord socket, the instrument is connected to the 220Vac50Hz power supply through a random power cord.
4, in accordance with the requirements of the national standard GB24540-2009, prepare:
Test filter paper Test film test sample test Balance test reagent, etc. Test necessary items.
Fifth, the operation steps
1. Measure the mass of the small beaker as m1. Place the small beaker under the folded edge of the sample to ensure that all reagents that have flowed down the surface of the sample are collected.
2. Confirm that the “test time†timer on the panel is set to 60 seconds (standard requirements).
3. Turn the “Test/Empty†selector switch on the panel to “empty†direction.
4. Turn the "power switch" on the panel to the "1" position and turn on the instrument.
5. Press the "Empty" button on the panel and the instrument will begin to move until the needle begins to inject solution. After the needle has injected the second solution, click on the “Clear†button, then turn the “Test/Empty†selector switch to the “Test†direction to take the solution from the second injection (do not take the solution from the first injection). ), call it quality, denoted as m.
6. Clean the small beaker and semi-cylindrical plexiglass transparent tank, and place the sample in place according to the requirements of GB24540-2009.
7. Press the “Aspirate†button on the front panel. After about 2 seconds, the “Aspirate complete†indicator will light, indicating that the aspiration is complete.
8. Press the “Inject†button on the panel and the instrument will start to automatically inject the solution. After the injection is completed, the “Injection completed†indicator will light up.
After 9, 60 seconds, the buzzer alarms to indicate that the test is completed. Turn the "power switch" to "0" to power off the instrument.
Tap the edge of the transparent slot to slide the reagent suspended on the folded edge of the sample.
The weight of the reagent collected in the small beaker and the cup is m1/, and the liquid repellency index of the swatch is calculated according to the formula I=(m1/-m1)/m*100% according to the liquid repellency index. This trial ended.
10. If you want to test the second fabric sample rejection efficiency, turn on the instrument power switch and repeat steps 6-9.
11. If it is confirmed that it is not necessary to perform the test, first unplug the power cord connecting the instrument and the laboratory power supply, and then perform the following steps to drain the residual solution so as not to corrode the instrument parts for a long time!
1 Remove the straw from the beaker.
2 Turn the "Test/Empty" selector switch to "empty" direction.
3 Turn on the power switch ("Power switch" on the panel to "1").
4 Click the Drain button.
5 To the needle is no longer injected solution, turn off the power switch (turn "power switch" to "0"). Clean beakers and semi-cylindrical clear glass troughs so that test reagents do not remain.
Sixth, matters needing attention 1, the instrument for a long time when not in use, must carry out residual solution emptying operation! After completing this step, it is best to use a cleaning agent to repeat the test and emptying steps to thoroughly clean the piping.
2. Do not open the door of the electrical box while the instrument is in operation.
3, acid and alkali have a certain degree of corrosion, test personnel should wear anti-acid / alkali gloves to avoid personal injury.
4, the instrument power supply should have a good grounding!
5. During the use of the instrument, there will be leakage of acid-alkali liquid inside the upper tank, which has been used for pouring out. It is necessary to open the door to handle the leaked liquid and clear the pipeline.
ZF-631 liquid-repellent efficiency testing device is developed according to the latest national standard GB24540-2009 "protective clothing protective clothing for acid and alkali chemicals" and is used to determine the liquid-repellent efficiency of fabrics made of protective garments made of acid and alkali chemicals.
Second, the instrument features and technical indicators
1. Semi-cylindrical organic glass transparent tank with an inner diameter of (125 ± 5) mm and a length of 300 mm.
2, PTFE needle anti-acid corrosion; injection pinhole diameter of 0.8mm; tip is flat.
3, automatic injection system, continuous injection of 10mL reagent within 10s.
4, automatic timing, alarm system; LED display test time, accuracy 0.1S.
5, the power supply: 220Vac50Hz100W
Third, the applicable standards
GB24540-2009 "protective clothing protective clothing for acid and alkali chemicals"
IV. Preparation before the test
1. Place the 500ml beaker with the reagent in the cavity below the electrical box (remove the front bezel of the cavity with a Phillips screwdriver), place the pipette in the solution, and fix it. Be careful to prevent the pipette from being tested. During the shift.
2. Place a 200ml beaker inside the upper case and place the tube labeled “Leakage Solution Out†inside the beaker to collect the leaked fluid.
3, the back of the instrument has a power cord socket, the instrument is connected to the 220Vac50Hz power supply through a random power cord.
4, in accordance with the requirements of the national standard GB24540-2009, prepare:
Test filter paper Test film test sample test Balance test reagent, etc. Test necessary items.
Fifth, the operation steps
1. Measure the mass of the small beaker as m1. Place the small beaker under the folded edge of the sample to ensure that all reagents that have flowed down the surface of the sample are collected.
2. Confirm that the “test time†timer on the panel is set to 60 seconds (standard requirements).
3. Turn the “Test/Empty†selector switch on the panel to “empty†direction.
4. Turn the "power switch" on the panel to the "1" position and turn on the instrument.
5. Press the "Empty" button on the panel and the instrument will begin to move until the needle begins to inject solution. After the needle has injected the second solution, click on the “Clear†button, then turn the “Test/Empty†selector switch to the “Test†direction to take the solution from the second injection (do not take the solution from the first injection). ), call it quality, denoted as m.
6. Clean the small beaker and semi-cylindrical plexiglass transparent tank, and place the sample in place according to the requirements of GB24540-2009.
7. Press the “Aspirate†button on the front panel. After about 2 seconds, the “Aspirate complete†indicator will light, indicating that the aspiration is complete.
8. Press the “Inject†button on the panel and the instrument will start to automatically inject the solution. After the injection is completed, the “Injection completed†indicator will light up.
After 9, 60 seconds, the buzzer alarms to indicate that the test is completed. Turn the "power switch" to "0" to power off the instrument.
Tap the edge of the transparent slot to slide the reagent suspended on the folded edge of the sample.
The weight of the reagent collected in the small beaker and the cup is m1/, and the liquid repellency index of the swatch is calculated according to the formula I=(m1/-m1)/m*100% according to the liquid repellency index. This trial ended.
10. If you want to test the second fabric sample rejection efficiency, turn on the instrument power switch and repeat steps 6-9.
11. If it is confirmed that it is not necessary to perform the test, first unplug the power cord connecting the instrument and the laboratory power supply, and then perform the following steps to drain the residual solution so as not to corrode the instrument parts for a long time!
1 Remove the straw from the beaker.
2 Turn the "Test/Empty" selector switch to "empty" direction.
3 Turn on the power switch ("Power switch" on the panel to "1").
4 Click the Drain button.
5 To the needle is no longer injected solution, turn off the power switch (turn "power switch" to "0"). Clean beakers and semi-cylindrical clear glass troughs so that test reagents do not remain.
Sixth, matters needing attention 1, the instrument for a long time when not in use, must carry out residual solution emptying operation! After completing this step, it is best to use a cleaning agent to repeat the test and emptying steps to thoroughly clean the piping.
2. Do not open the door of the electrical box while the instrument is in operation.
3, acid and alkali have a certain degree of corrosion, test personnel should wear anti-acid / alkali gloves to avoid personal injury.
4, the instrument power supply should have a good grounding!
5. During the use of the instrument, there will be leakage of acid-alkali liquid inside the upper tank, which has been used for pouring out. It is necessary to open the door to handle the leaked liquid and clear the pipeline.
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