Quality Starts From Reliable Materials

For each 5 tons of raw materials, we will take less than 13 samples at random, the total weight of which should be no less than 1 kg.

All the raw material samples will be divided into two equal parts, one of which is kept as a retained sample, and the other one is analyzed according to our standard tests;

We take the arithmetic mean of the parallel measurement values ​​as the report result, and the absolute value difference between the two measurement results should be under 0.4%.