In fact, those three nouns are another name for fire board, It is also called thermal insulation perlite board, refractory board and so on, I am engaged in fire-proof board technology, glass magnesium board is this board, but the two never heard of people said, different areas have different names, glass magnesium board full name is glass magnesium fire-proof board, that is, we often say fire-proof board, in fact, the main production material of fire-proof board is magnesium oxide, also known as light burning magnesium, the current production of light burning magnesia The board is fireproof board, but there is also a kind of board is Z strong is calcium silicate board, which is used as the main material of cement, is a very strong board, but the price is relatively high, the general market does not sell this kind of board, fireproof board cost-effective, its fire performance fully meet the national requirements for fire prevention and even higher.
The weight of each batch is not more than 120 t. Samples for particle size determination should be sampled before the batch and samples for chemical analysis should be sampled after the batch. Take one sample for each 20 bags of small bags (25kg) and one sample for each large bag (1000kg). After the obtained particle size sample is thoroughly mixed, 10~20g is taken to measure the particle size. After mixing, the test sample is divided into 200g and sent to the laboratory for analysis. If there is unqualified or abnormal chemical composition, double the number of samples are taken from the same batch of products for retest. The retest result is the Z final test result of this batch of products.