GB/T 4155-2003 Cerium Oxide

This standard specifies the requirements, test methods, inspection rules and marking, packaging, transportation and storage of cerium oxide. This standard applies to cerium oxide produced by chemical or other methods for glass, ceramics, electronics, luminescent materials, polishing materials, etc. GB/T 4155-2003 Cerium Oxide GB/T4155-2003 Standard download decompression password: www.bzxz.net

IC5 71. 060.20
National Standard of the People's Republic of China
GB/T 4155—2003
Replaces G/141551992
Cerium oxide
Cerium oxide
2003-11-18 Issued
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China
2004-02-17 Implementation
GB/T4155—2003
With the development of the screening market and the improvement of production level in recent years, higher requirements are put forward for research and development of chemical products. Therefore, the original national standard GB, 141bb—1!24 oxide is interpreted. Compared with R/453-199 rare earth oxide, this standard has the following main changes: 1.33-199 rare earth product brand representation method requirements: 99.99% rare earth oxide is divided into grades 210A and 2100B; 2100B rare earth oxide is divided into grades 2100A and 2100B; 2108 rare earth oxide has added requirements for impurity element bottles; the purchase and reduction test system has been adjusted, and the test methods used have been clarified: This standard is funded by the National Planning Commission's Rare Earth Office, and this standard is interpreted by the enterprise manager of Shenzhen Rare Earth Technology Co., Ltd. Drafted by: Feng Qixing, Zhang Ganle, Lu Shanping. The previous versions of the standards replaced by this standard are: 1984.66/4155-1502.
GB:4355
1 Scope
This standard specifies the requirements for oxidation decoration, test methods for inspection and marking packaging, storage and storage. B/1:4155-2003
This standard is for the oxidation auxiliary materials of glass, ceramics, electric materials, luminous materials, optical materials, etc. produced by chemical or other methods. 2 Normative references The following documents are applicable to the six standards and become the clauses of the six standards. For the referenced documents with the same date as the referenced documents, their subsequent revisions (excluding the incorrect versions) are not applicable to this standard. The versions of these documents can be used for research purposes according to the revisions made before the revisions. For the referenced documents without the same date, their latest versions shall apply to this standard: GB/T 8170 Specification rules for numbers
[5:126 Tax 1 Chemical analysis methods for soil and oxides 3 GHT1485 Rare earth metals and their Chemical composition of rare earth oxides G/1815 Chemical composition of rare earth oxides 3 Requirements 3.1 Chemical composition The chemical composition of the oxides shall comply with the provisions of Table 1. If the purchaser has special requirements: The purchaser and the purchaser shall reach an agreement. Table 1. Beijing University of Posts and Telecommunications Edition Yield Number Product Number Brand Name N\N4NA521C1So21R1E Less than ten parts Not including Rare Earth System/K from Combination No. 1
±+ CO.REN- (.O)
Pr.: VaO,
3.2 Appearance
Shop profit: %bzxz.net
3.2.1 This product is for sale. The product is of high quality. The color is fresh, the color is fresh, the color is fresh. 3.2.2 The product is clean and there is no visible product. 4 Test method
The above total number of tests: RE0153, the current commercial method is 4.2
The quality of the product is tested by the method specified in 1411F, GB/T 4'55—2003
4.3 Non-symmetrical soil frame compression skin reduction BT1 standard method 1,4 appearance by visual inspection
2.5 numerical verification (3[8[70 current method for 5 inspection rules
5.1 Inspection and acceptance
5.1.1 The technical supervision and sales department of the supply center shall conduct inspection to ensure that the products conform to the regulations of this standard and write the product quality certificate. 5.1.2 The demand side shall inspect the changed products. If the inspection result does not conform to the provisions of this cup standard, the demand side shall jointly deal with the change within 2 days after receiving the products. If the supply side does not solve the problem, the supply side shall jointly deal with the change within 2 days after receiving the products. The transfer unit shall be approved by the demand side and the batch shall be carried out in batches. 5.2 Batch
Products shall be submitted for inspection in batches, and each batch shall be composed of a new product with a brand. 5.3 Inspection items
After each product is produced, the chemical composition and quality inspection shall be carried out. 5.4 Sampling and sample preparation
The chemical composition and quality inspection report 2 shall be carried out as specified. Table 2
What kind of batch (release) items
Sampling pieces (generally)
21..n1.1n1...152.15r.
Each piece (the most detailed number shall not be less than that of the sample) After the test items are mixed, the same quarter method can be used to quickly obtain the number of new samples. 5.5 Determination of inspection results
The entire inspection result shall be selected, and double the test results shall be collected from the unqualified items for re-inspection on the same day. If the good milk does not meet the requirements, the product is unqualified
6 Marking, packaging. Transportation and storage
6.1 Marking and packaging
The products shall be packed in plastic and added with efficient materials, and then packed in boxes or sea boxes, and then packed in bags. Confirm the shrinkage and packaging: the name of the supplier, product name, screen number, batch number, gross weight of the product, factory import and "drug\mark or inspection sample.
6.2 Transportation and storage
Products must be kept in a deep place, well-prevented from using chemicals before identification. 6. 3 Quality certificate
Actual batch product quality certificate:) Supplier name:
Product name:
All foreign technical inspection systems are available for inspection and supervision. The approval number is:
F period.
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