There are many processes in the production of talc powder, and this product mainly uses talc ore as the raw material. Products can only be sold after they pass the inspection, so how to test them?
1. Specific surface area: measured with GSL-101BII laser prismatic analyzer.
2. Average particle size: the median value of the cumulative weight percentage of the particle size distribution measured by the laser particle size analyzer.
3, 325 mesh residual amount: the 1000g/m3 sample is placed on a 325 mesh standard sieve and filtered by a wet method, and the residual ratio is calculated.
4. Specific gravity: The measured value after placing 5g of the sample in a 20cc graduated cylinder and naturally falling from a height of 5cm for 100 times.
5. Whiteness: automatic whiteness meter measurement.
6. Oil absorption: JIS-K5101 method, add linseed oil and titrate until it becomes a block.
The above is the main content of how to test talc.
