Testing and Analysis of The Powder Drop Rate Tester
The Powder Drop Rate Tester is a basic instrument for measuring the powder loss rate of toilet paper and its products. Its performance parameters and technical indicators refer to the requirements of the national standard GB/T20810 for powder loss rate measurement of toilet paper (including toilet paper base paper).
The working principle of powder loss rate is to clamp the sample onto the sample holder, press the "Start" button, swing the swing arm back and forth according to certain requirements to the specified time, weigh the mass of the sample before and after swing, and then calculate the powder loss rate of the sample.
Power on
Insert the device power plug into the power outlet. Turn on the power switch. The system enters the 3.2 standby interface.
setting
Press the [Test Time Setting] area, pop up the small keyboard, and enter the test time (GB 2min).
testing procedure
1. Sampling and testing should be conducted under the standard atmospheric conditions specified in GB/T10739.
Note: During the powder loss rate test, the sample does not need to undergo constant temperature and humidity treatment.
2. Take any roll (tray or bag) of toilet paper, remove the outer packaging, and sample according to the following method:
1) Roll toilet paper: Weigh the mass of the toilet paper after removing the outer packaging and calculate it as m1. Fold the toilet paper into a sample with a length of about 200 mm, and keep the long side direction flat during folding. For the convenience of testing, roll toilet paper with larger mass can be divided into multiple layers of samples.
2) Flat toilet paper or extracted toilet paper: Unfold and stack each piece of toilet paper, keep the long side direction flush during stacking, take about 150g of sample, weigh its mass as m1, and for less than 150g of flat toilet paper and extracted toilet paper, take the entire package as the sample for testing.
3) Disc toilet paper: Fold the toilet paper into a sample with a length of approximately 200 mm, keeping the long side direction flush during folding. Take approximately 150 g of the sample and weigh its mass as m1.
3. Fix the long end of the taken sample on the sample clamp, ensuring that the surface of the sample is perpendicular to the swing direction and that the sample does not come into contact with the inside of the box during the measurement process.
4. Start the instrument and the countdown begins.
5. After the experiment is completed, remove the sample and weigh the mass of the sample (if it is a roll toilet paper with a roll core, weigh it together with the roll core) as m2. For roll toilet paper with a larger mass, the sum of the sample masses after multiple measurements is calculated as m2 (including the roll core mass).
