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Introduction and Application of Simple Light Burning Powder

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Introduction and Application of Simple Light Burning Powder

Date of release:2018-12-27 Author: Click:

Light burning powder UDC 669.721-492.2Q 43

National Standards of the People's Republic of China

GB 9354-88

Light burnt magnesia powder

Caustic burned magnesia

1988-06-14 Issue 1989-10-01 Implementation

Issued by the National Bureau of Standards

1. Subject content and scope of application

This standard stipulates the technical requirements, test methods, inspection rules, marks, packaging, transportation, storage and quality certificate of light-burned magnesia powder.

This standard is suitable for light burnt magnesia powder used in papermaking, chemical industry, building materials, rubber, ceramics, animal husbandry and manufacturing magnesia.

2 Reference Criteria

Light baking powder

GB 5069 Magnesium Refractories Chemical Analysis Method

General Regulations on Packaging, Marking and Quality Certificate of Metallurgical and Mineral Products GB 5689

3 Classification

Light burnt magnesia powder can be divided into nine grades according to its chemical composition: QM-96, QM-95, QM-94, QM-92, QM-90, QM-87, QM-85, QM-80 and QM-75.

4 Technical Requirements

Physical and chemical indicators should meet the requirements of Table 1.

5 test methods

5.1 Chemical analysis was carried out according to GB 5069.

5.2 Particle size was determined by international standard sieving test, i.e. 120 meshes and 100 meshes were tested by international standard sieving test with aperture of 0.125 mm and 0.15 mm, respectively.

6 Test Rules

6.1 The weight of each batch of finished product is less than 120 t.

6.2 Samples for particle size determination should be sampled before group batches and samples for chemical analysis should be sampled after group batches. Samples were taken in small bags (25kg) and in large bags (1000kg).

After fully mixing the obtained particle size samples, the particle size was determined by point sampling of 10-20g. The mixed samples were reduced to 200 g and sent to the laboratory for analysis.

6.3 If a chemical composition is unqualified or abnormal, double quantity of samples will be re-examined in the same batch of products, and the re-examination results will be the final inspection results of the batch of products.

7 Signs, Packaging, Transportation, Storage and Quality Certificate

7.1 When finished products are stored, they must be kept in a non-damp warehouse.

7.2 The finished transport equipment must be kept clean and equipped with rain and snow protection facilities, and must be strictly protected from dampness and pollution during transportation.

Except for 7.3, other related matters shall be carried out in accordance with GB 5689.

Additional notes:

Standard level marker GB 9354-88 I

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