This standard specifies the requirements, test methods, inspection rules and marking, packaging, transportation and storage of antimony trioxide (commonly known as antimony white). This standard applies to antimony trioxide produced by various processes. This product is mainly used as a flame retardant synergist in flame retardants for flammable materials such as plastics, resins, rubber, paints, textiles, etc. to improve the flame retardant effect. In addition, it is also widely used in glass, enamel, coatings, catalysts, metallurgy, chemical industry and other industries. GB/T 4062-1998 Antimony trioxide GB/T4062-1998 Standard download decompression password: www.bzxz.net

GB/T4062—1998
This standard is a revision of GB4062-—83 "Antimony trioxide". In terms of writing rules and format, this standard follows the relevant provisions of GB/T1.1-1993 "Guidelines for standardization work Unit 1: Rules for drafting and expressing standards Part 1: Basic provisions for standard writing" GB/T1.22-1993 "Guidelines for standardization work Unit 2: Methods for determining standard content Part 22: Provisions for referenced standards" and GB1.3-1997 "Guidelines for standardization work Product standard writing provisions".
The grades listed in this standard retain Sbz0,99.50 and Sb0.99.00, and a new grade of SbzO,99.80 is added. The grade of secondary antimony trioxide in the original standard is cancelled. The permissible content of copper, iron and selenium impurities has been increased in the two grades of Sb20), 99.80 and Sb, 0.99.50. In terms of physical properties, whiteness and average particle size indicators have been added. The fineness indicators of the original standard are not convenient for implementation and are cancelled. Appendix A of this standard is a reminder appendix.
From the date of entry into force, this standard will replace GB4062--83 at the same time. This standard was proposed by China Nonferrous Metals Industry Corporation. This standard is owned by the Standard Metrology Institute of China Nonferrous Metals Industry Corporation. This standard was drafted by the Xikuangshan Mining Bureau. The main drafters of this standard are: Fu Yixun, Wu Yongyue, Song Yingqiu, Du Qi, Dai Yongjun. This standard is entrusted to the Standard Metrology Institute of China Nonferrous Metals Industry Corporation for interpretation. 1
1Scope
National Standard of the People's Republic of China
Antimony trioxide
GB/T40621998
Replaces GB 466
This standard specifies the requirements, test methods, inspection rules and marking, packaging, transportation and storage of antimony trioxide (commonly known as white). This standard is applicable to antimony trioxide produced by various processes. This product is mainly used as a flame retardant synergist in flame retardants for flammable materials such as plastics, resins, rubber, paints, textiles, etc. to improve the flame retardant effect. In addition, it is also widely used in glass, porcelain, coatings, catalysts, metallurgy, chemical industry and other industries.
2Cited Standards
The provisions contained in the following standards constitute the provisions of this standard through reference in this standard. When this standard is published, the versions shown are valid. All standards will be revised, and parties using this standard should explore the possibility of using the latest version of the following standards. GB5211.15--88 Determination of oil absorption of pigments GB5211.16--88 Determination of tinting power of pigments GB5211.17--88 Determination of hiding power of pigments GB/T3254.1～3254.6-1998 Chemical analysis method of antimony trioxide GB11107--89 Determination of specific surface area and particle size of metal and its compound powders Air permeability method 3 Contents of ordering contract
The ordering contract for materials listed in this standard shall include the following contents: 3.1 Product name.
3.2 Brand.
3.3 Packaging form, material, weight, special requirements for impurity content or physical properties. 3.4 Quantity.
3.5 Standard number and year number.
3.6 Others.
4 Requirements
4.1 Product classification:
Antimony trioxide is classified into the following grades according to chemical composition and physical properties: Sb,0,99.80, Sb,O:99.50 and Sb.0.99.00. 4.2 Chemical composition and physical properties:
The chemical composition and physical properties of antimony trioxide shall comply with the requirements of Table 1. Approved by the State Administration of Quality and Technical Supervision on July 15, 1998, 128
1999 0201 for implementation
Chemical composition, %
Physical properties
Not more than
GB/T 4062
Table 1 Chemical composition and physical properties of antimony trioxide Sh, O.99.80
Not less than
Baidu, %
Not less than
Average particle size
0. 9 ~~1. 6
1. 6~~ 2. 5
Shb.O.99.50
0. 3～0. 9
4.3 If the purchaser has special requirements for the impurity content and physical properties of antimony trioxide, it can be resolved through consultation with the supplier. 4.4 Upon the request of the purchaser, the supplier may determine the oil absorption, tinting power and hiding power of antimony trioxide. 4.5 Antimony trioxide is a white powder and should not have visually discernible foreign inclusions. 5 Test methods
5.7 The arbitration analysis method for the chemical composition of antimony trioxide shall be carried out in accordance with the provisions of GB/T3254.1~3254.6. 5.2 The determination of average particle size shall be carried out in accordance with the provisions of GB/T11107. Sb.0.99. 60
5.3 The determination of oil absorption shall be carried out in accordance with the provisions of GB5211.15; the determination of tinting power shall be carried out in accordance with the provisions of GB5211.16; the determination of hiding power shall be carried out in accordance with the provisions of GB5211.17.
6 Inspection rules
6.1 Inspection and acceptance
6.1.1 The product shall be inspected by the supplier's technical supervision department. Ensure that the product quality meets the requirements of this standard and fill in the quality certificate. 6.1.2 The purchaser may inspect the received products according to the provisions of this standard. If the inspection results do not conform to the provisions of this standard (or the specifications of the order contract) (or the brand in the quality certificate), the purchaser shall submit the inspection to the supplier within two months (half a year for export products) from the date of receipt of the products for negotiation between the purchaser and the supplier. If arbitration is required, sampling shall be carried out jointly by the purchaser. 6.2 Batches
Products shall be submitted for inspection in batches, each batch shall be composed of the same brand, and the weight of each batch shall not exceed 20t. 6.3 Inspection items
Each batch of products shall be inspected for chemical composition and physical properties according to the items listed in Table 1. 6.4 Sampling and sample preparation
6.4.1 Take one bag out of every 10 bags of products in the same batch as a sample bag. 6.4. 2 Use a copper (or stainless steel) sampling tube to insert a sample in the center of each sample bag, and the sampling volume of each bag should not be less than 40g. After the sample is taken out, it should be quickly placed in a dry, clean, and airtight container. 6.4.3 Mix the sample thoroughly in a clean place, reduce it to 500-1000g by quartering method, and then divide it into four parts, one for inspection, one for delivery to the buyer (when the buyer requires it), and the other two for the supplier and the buyer to keep one for inspection and keep it for 1 year (export products are kept for three years) for arbitration analysis.
6.4.4 If the buyer has any quality objection, the supply and demand parties shall negotiate. If re-sampling is required, a bag can be taken from every 5 bags of the batch of products as a sample GB/T 4062 --- 1998
bags, and then prepare arbitration test samples according to the provisions of Articles 6.4.2 and 6.4.3. 6.5 Inspection result determination
When the arbitration test results of chemical composition and physical properties do not conform to the provisions of this standard, the brand shall be re-determined or returned according to the results. 7 Marking, packaging, transportation and storage
7.1 Marking
Antimony trioxide packaging bags should be painted with a mark that is not easy to fall off, indicating: a) manufacturer name;
b) product name and brand;
c) trademark;
d) batch number;
e) net weight.
7.2 Packaging
The product is packed in double bags, The outer layer is a plastic woven bag, and the inner layer is a glass fiber latex bag; or the outer layer is a paper bag, and the inner layer is a plastic film bag. The packaging material must ensure strength. The net weight of each bag is 25kg. According to user requirements, it can be packed into tons and half a ton. The packaging weight and packaging materials can be changed with the agreement of the supply and demand parties. 7.3 Transportation and storage
7.3.1 Reliable protective measures should be taken when transporting products to prevent product damage and contamination. Reliable protective measures must be taken when transporting on rainy days. 7.3.2 Product transportation vehicles and storage locations must be kept clean and dry, and must not come into contact with acids, alkalis and other contaminated items. The responsible party shall be responsible for any deterioration or damage of the product caused during transportation and storage. 7.4 Quality CertificateWww.bzxZ.net
Each batch of products shall be accompanied by a quality certificate, indicating: a) supplier name;
b) product name and brand;
c) batch number;
d) net weight and number of bags;
e) analysis and inspection results and stamp of the technical supervision department; f) number of this standard;
g) ex-factory date.
A1 Scope
GB/T 4062-—1998
Appendix A
(Indicative Appendix)
Determination method of whiteness of antimony trioxide
This standard specifies the determination method of whiteness of antimony trioxide, with a determination range of 60% to 100%. A2 Principle
The whiteness of antimony trioxide refers to the absolute reflectance of the sample plate surface when the wavelength is 457nm, measured with a diffuse reflector calibrated with an absolute standard as the reference, and is expressed as a percentage. A3 Instrument
A3.1 A photoelectric integrating whiteness meter is used.
A3.2 The instrument should have the function of measuring the whiteness of blue light. The peak of the blue light spectrum characteristic curve is 457nm±0.5nm. The half-height width is 40~50 nm.
A3.3 The optical geometric conditions of the instrument are diffuse/vertical (d/o) or vertical/diffuse (o/d). A3.4 The diameter of the instrument's measuring light hole should be greater than 20mm. A3.5 The instrument's zero drift is ≤0.1%/10min, the indication drift is ≤0.2%/3min, the indication error is ≤1%, and the measurement repeatability is ≤0.2%. A3.6 The instrument uses a D65 light source.
A4 Sample
A4.1 Use a sample press and ground glass for sample pressing. The sample height before pressing is 12~18mm and the sample pressing pressure is 0.01~0. 02 MPa.
A4.2 The diameter of the sample after pressing is larger than the diameter of the instrument hole. A4.3 If the sample is damp and sticks to the glass during sample preparation, it should be dried in an oven at 105~110℃ for 1h and cooled to room temperature before sample preparation. A4.4 The surface of the prepared sample is flat and free of spots and cracks. A5 Standard white board
A5.1 Transmission standard white board
A5.1.1 The whiteness value of the standard white board should be greater than 85%, and its value is confirmed by the national metrology department for one year. A5.1.2 The standard white board should be stored in a desiccator away from light. A5.2 Working standard white board
A5.2.1 For the convenience of daily measurement, a white ceramic plate or milky white glass plate with a flat surface and no scratches or cracks can be used as a working standard white board for daily measurement, and its value should be greater than 80%. A5.2.2 The working standard white board should be calibrated on the working instrument once every two months with a standard white board, and its value is used for daily measurement. A5.2.3 The working standard board should be stored in a dry, light-proof and dust-free place. Once a week, wipe it with a sponge or lens paper dipped in anhydrous ethanol and use it after drying.
A6 Measurement steps
Use the sample preparation device to make two sample plates that meet the requirements of the sample to be tested, and make two sample plates in parallel. A6.2 Preheat and adjust the instrument according to the requirements of the instrument manual, and use the following standard self-plate to calibrate the instrument to the standard value. 131
GB/T4062—1998
A6.3 Place the prepared sample on the sample table of the instrument and measure the self-value. Read to 0.1%. A7 Representation of measurement results
A7.1 When the difference between the results of two parallel measurements is not greater than 0.3, take the arithmetic mean as the final result. Otherwise, re-measure. A7.2 The whiteness value is expressed as a percentage and retain one decimal place. A8 Tolerance
The difference in the measurement results within the laboratory should not be greater than 0.5%; the difference in the measurement results between laboratories should not be less than 1.0%132
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