Light burnt magnesia powder

This standard is applicable to light burned magnesia powder used in papermaking, chemical industry, building materials, rubber, ceramics, animal husbandry and magnesia production. 97 fused magnesia

Reference Standard

GB 5069 Magnesium refractory analysis method

GB 5689 General provisions for packaging, marking and quality certificates of metallurgical and mineral products

classification

According to chemical composition, light burned magnesia powder is divided into nine grades: QM-96, QM-95, QM-94, QM-92, QM-90, QM-87, QM-85, QM-80, and QM-75.

testing regulations

6.1 The weight of each batch of finished products shall not exceed 120t.

6.2 Samples for determining particle size should be sampled before batch formation, and samples for chemical analysis should be sampled after batch formation. Take one incremental sample for every 20 bags of small bag (25kg) and one incremental sample for each big bag (1000kg).

After thoroughly mixing the obtained particle size sample, take 10~20g to determine the particle size. After mixing, the test sample is reduced to 200g and sent to the laboratory for analysis.

6.3 If the inspection result has a chemical composition that is unqualified or abnormal, take a double number of 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.