Light burned magnesium powder According to chemical composition, it can be divided into nine brands: QM-96, QM-95, QM-94, QM-92, QM-90, QM-87, QM-85, QM-80 and QM-75.
test method
Chemical analysis shall be carried out according to GB 5069.
The particle size shall be tested with the international standard sieve, that is, 120 meshes and 100 meshes shall be tested with the international standard sieve with the aperture of 0.125mm and 0.15mm respectively.
Inspection rules
The weight of each batch of finished products shall not exceed 120 t.
The samples for particle size determination shall be sampled before the grouping, and the samples for chemical analysis shall be sampled after the grouping. Take one sample for each 20 small bags (25kg) and one sample for each large bag (1000kg).
After the obtained particle size sample is fully mixed, 10~20g is sampled to determine the particle size. The test sample after mixing is reduced to 200g and sent to the laboratory for analysis.
In case of any unqualified or abnormal chemical composition in the inspection result, take twice as many samples from the same batch of products for re inspection, and the re inspection result shall be the final inspection result of the batch of products.
