This standard specifies the requirements, test methods, inspection rules and marking, packaging, transportation, storage and quality certificate of sericite powder. This standard applies to sericite powder made by wet grinding, decompression and drying. This product is mainly used in rubber, plastic, coating, electronics, ceramics and other industries. YS/T 467-2004 Sericite powder YS/T467-2004 standard download decompression password: www.bzxz.net

The People's Republic of China Nonferrous Metals Industry Standard YS/T 467-2004
2004-06-17 Issued
Sericite powder
2004-11-01 Implementation
National Development and Reform Commission
This standard belongs to the standard.
The cloud ear powder referred to in this standard is the mica powder produced from the dust of nonferrous metals. This standard is issued by the National Nonferrous Metals Standardization Technical Committee. This standard is drafted by Xixi Copper Group Co., Ltd. The main drafters of the standard are Zhen Huohong, Li Baodi, Wu Yiwei, Wang Zhenxing, Chen Minkai, and the State-owned Nonferrous Metals Standardization Technical Committee is responsible for the interpretation of this standard. YS/T467-20G4
" Scope
Sericite powder
YS/T 46720C4
This standard specifies the number requirements, test methods, inspection and measurement marks, packaging, transportation, and quality of sericite powder. This standard is applicable to sericite powder made by wet, dry, and other processes. This product mainly belongs to rubber, gum materials, coatings, nails, ceramics and other industries.
2 Normative referenced documents
The following documents become the clauses of this standard through reference to this standard. The following are the referenced documents with dates, which are not updated or revised (excluding the contents of this standard). However, these documents are considered to be updated. Any referenced documents without annotated dates are not applicable to this standard. GB:T378C.5 Determination of the quality of carbon dioxide by heating disk GB84.3 Chemical analysis of concentrate GBT?8 General rules for sampling of chemical products GB6?3. Chemical analysis of ferrite by atomic absorption spectrophotometry GR/T14S65 High performance liquid chromatography method HGT97.1 Determination of calcium black sieve residue HG/T2707.4 Determination of aluminum black 2H value HG/2797, 6 Note: 3 Definition of density bZxz.net
Editor's note: It refers to the material that has been collected by the bureau and has been subjected to differential grinding, separation, beam, etc. 1. The age of the material is determined in sequence. The chemical composition of mica powder should be in accordance with the requirements in Table 2 and Table 1. The content of chemical composition is not less than 50%, not more than 100%. 467-2004
4.3 Physical properties
4.3.1 Porosity: MA-1 not greater than 1.5%, MCA-2 not greater than 0.5%, MCA-3 not greater than 1.0%.
4.3.2 Ground heat absorption: not less than 1.0%.
4.3.3 Water content: not less than 1.5%.
4.3.4 Size of sieve residue: not greater than 45rrm]: MC: 4-1 not greater than 1.5%; MCA-2 not greater than 1.0%; MCA-3 not greater than 1.0%.
4.3.5 PH value: 6.0--8.0.
4.3.5 Appearance: powdery.
5 Test methods
The content of Al, O, SiO, E, O shall be determined in accordance with GH/T14555. 5.1
The content of impurities shall be determined in accordance with B/T730.36. 5.3
The content of impurities shall be determined in accordance with GH/T3284.5. 5.4 The determination of thermal sensitivity shall be carried out in accordance with GB/T30.8. 5.5 The determination of sieve residue shall be carried out in accordance with TG/T2797.1. 5.6
The determination of PII shall be carried out in accordance with H6T2797.4. 5.7
The determination of the thickness of the mica powder shall be reported to FIG/T2797.6 Inspection Rules
6.1 Inspection and Acceptance
6.1.1 The mica powder shall be inspected by the supplier's quality supervision department to ensure that the product quality meets the requirements of this standard or the order (contract) and a quality certificate shall be issued.
6.1.2 The received products shall be inspected according to the requirements of this standard. If the test results are inconsistent with the provisions of this standard or the order (company), the supplier shall be notified within 30 days after the product is delivered, and the supplier and the buyer shall reach a solution through consultation. If a decision is required, the buyer shall agree with the buyer during the sampling process.
6.2 New batches of mica powder shall be submitted in batches, and each batch shall be submitted to the serial number of the mica powder group. The annual batch rate shall not exceed 66.3 Sampling
Group mica powder Sampling is carried out in accordance with GB/T65:3. After determining the minimum number of sampling bags, the 15-ounce stainless steel samples are evenly mixed with the appropriate sample trays, condensed to about 2 kilograms, and sealed in wide-mouth bottles. The effective storage period of the test is 6.4 Inspection Items The parent batch of products is thoroughly inspected for chemical composition, water content, sieve content, H value and density. The inspection of addition and reduction shall be agreed upon by the supply and demand parties. If the test results do not match the chemical composition and physical properties of the product in this order (combination), it shall be deemed unqualified. 7.1 Marking 7.1.1 The packaging shall be marked as follows: 1) Product name and brand; 2) Year of production: 3) Batch number; 4) Standard number: 5) 7.2 Packaging 7.2.1 The allowable packaging tolerance of mica is 25kg and the packaging tolerance is 0.25kg. 7.2.2 The packaging shall be made of paper composite bags. If there are special packaging requirements, the supply and demand parties can negotiate. 7.3 Purchase, storage and transportation
7.3.1 Products should be stored in ventilated and dry warehouses, and should not be stored with items that are incompatible with the products. 7.3.2 During transportation, products should be protected from moisture to ensure that they are not contaminated and the packaging is not damaged. 7.4 Quality certificate
Each batch of products shall be accompanied by a quality certificate and shall indicate: a) Name, address and telephone number of the supplier; b) Product name and brand name;
Batch number;
) Dead weight and number of pieces;
Analysis and inspection results and stamp of the quality supervision department;
This standard is numbered 1) Factory export date.
8 Contents of order form (or contract)
The contents of the order form (or contract) for the materials listed in this standard shall also include: a) Product name; b) Brand name; ) Special requirements such as shape, size, quality content, etc.; l) Weight; e) Standard number:
YST 467—2034
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