Test method for flushable wipes
Test method for flushable wipes
(1) Wet strength test: take the wet tissue sample for tensile test, if the breaking strength of the wet tissue sample is greater than 4N, enter the next step of the test, otherwise it is judged as unqualified;
(2) Flushing test of toilet bowl: Take the wet wipes sample and the test accessories to simulate excrement and put them into the toilet, flush the toilet, record the position of the wet wipes sample and the test accessories in the drainage pipe after flushing, and repeat the operation not less than 50 If there is no blockage in the test and the moving distance of the wet wipes sample and the test accessories is not continuously reduced for 3 consecutive times, the test is passed, otherwise it is judged to be unqualified;
(3) Physical decomposition test: place the wet tissue sample in the test box of the three-dimensional rotating vibration table with water, and then place it on the three-dimensional rotating vibration table for more than 1 hour of vibration treatment, then filter it with a mesh screen, and collect the mesh screen On the wet tissue samples, calculate the percentage of the dry weight of the wet tissue samples passing through the mesh screen to the dry weight of the original wet tissue samples, and evaluate the physical decomposition potential of the wet tissue samples when subjected to mechanical force in water. If the decomposition rate is greater than 80%, the test is passed. , otherwise it is judged as unqualified;
(4) Biodegradation test: determine the total organic carbon content of the wet tissue samples, put the wet tissue samples in the urban sewage bacteria suspension for more than 30 days to degrade, and then test the cumulative inorganic carbon release of the wet tissue samples to account for the original wet tissue samples. The mass percentage of the total organic carbon content is used to obtain the biodegradation rate. If the biodegradation rate reaches more than 90%, the test is passed, otherwise it is judged to be unqualified;
(5) Sewage treatment system test: place the wet tissue sample near the inlet of the submersible pump of the sewage treatment system, start the submersible pump, and monitor the power of the sewage pump every second to monitor the power of the submersible pump after the wet tissue sample is placed If the average value of the submersible pump power change is less than 20%, it will pass the test, otherwise it will be judged as unqualified.
