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Record number: 10141-2002
HG/T 30B9--2001
This standard is a revision of the recommended chemical industry standard IIG/T3089-1987 "O-shaped rubber seal ring compound for fuel oil". The main differences between this standard and FIG/T3089-1987 (1997) are: - The "made of nitrile rubber" in the scope has been removed. - The compression permanent deformation test method is based on CB/T7759-1996 "Determination of compression permanent deformation of 6% vulcanized rubber thermoplastic rubber at room temperature, high temperature and low temperature", and the indicators have been appropriately adjusted. From the date of implementation, this standard will replace HG/T3089-1987. This standard is promoted by the Policy and Regulations Department of the former State Administration of Petroleum and Chemical Industry. This standard is under the jurisdiction of the Sealing Products Sub-Technical Committee of the National Technical Committee for Standardization of Rubber and Rubber Products. The drafting units of this standard are: Northwest Rubber and Plastic Research and Design Institute, Chongqing Changjiang Rubber Factory, and Tieling Rubber Industry Research and Design Institute of Liaoning Province. The main drafters of this standard are: Cao Yuanli, Cao Xiaofeng, and Dai Yanfen. This standard was first issued as the national standard CB7527-1987 in 1987. In 1997, it was adjusted to a recommended chemical industry standard and renumbered as HG/T 3089-1987.
1 Scope
Chemical Industry Standard of the People's Republic of China
Rubher mixture of O-ring seals For fuel
Rubher mixture of O-ring seals For fuelHG/T3089-2001
Replaces HG/T 3089-1987(1997)
This standard specifies the requirements, sampling, test methods, marking, labeling, packaging, and storage of O-ring liquid rubber seals for petroleum-based fuel systems.
This standard applies to ()-shaped rubber sealing ring materials used in petroleum-based fuel systems at -40-~100℃. 2 Reference standards
The provisions contained in the following standards constitute the provisions of this standard before being cited in this standard. When this standard is released, the versions shown are valid. All standards will be revised. All parties using this standard should explore the possibility of using the latest versions of the following standards. GB/T528—1998 Determination of tensile stress-strain properties of vulcanized rubber or thermoplastic rubber (eg VIS0) 37: 1994) GB/T531—1999 Rubber pocket hardness test method for indentation hardness test idtIS07619: 1986) GB/T1682—1994 Determination of low-temperature brittleness of vulcanized rubber Single specimen method GB/T1690—1992 Test method for liquid resistance of vulcanized rubber (neqJSO1817: 1985) CB/T3512—1989 Rubber hot air aging test method (neISO188: 1985) GB/T 7535—1996
Classification system description for vulcanized rubber (egvIS0) 4632-1: 1982) GB/T 7759
3 Requirements
Determination of compression set of vulcanized rubber and thermoplastic rubber at room temperature, high temperature and low temperature (cqVTS0) 8153.1 Fuel) The material code of the rubber seal ring consists of "purpose and basic physical properties code\. The basic physical properties code should comply with the provisions of GB/T7535.
Example:
Compression set maximum value code
Elongation at break minimum value code
Code for minimum tensile strength
Code for hardness grade
For fuel oil
3.2 The raw materials and manufacturing process used in manufacturing rubber seal rings for fuel oil shall comply with the requirements of relevant technical specifications. 3.3 The physical properties of rubber materials shall meet the requirements of Table 1. Approved by the State Economic and Trade Commission on 2D02-01-24, implemented on July 1, 2002
4 Sampling
Hardness, County A degree
Tensile strength, MPa
Elongation at break, %
HG/T3089—2001
Table 1 Physical properties of rubber materials
Not less than
Not less than
Compression set, % (Type B specimen 100℃.24h) Hot air aging (100℃, 24h)
Hardness change, Shore A
Tensile strength change rate, %
Elongation at break change rate, %||tt| |Liquid resistance
Fuel B (normal temperature, 72h)
Recovery change, part A degree
Volume change rate, %
Not less than
Not less than
Not less than
Fuel B (normal temperature, 72 immersion and then 100℃, 24hT explosion) Volume change rate, %
Brittle temperature, C
Not less than
Not higher than
-25 ~0
4. 1 The same rubber material produced by the same shift and the same machine is not more than 300 kg per batch. Index
—20~0
—20~0
-15 ~0bzxz.net
4.2 A batch of rubber materials should be randomly selected from each batch and the test specimens should be prepared according to the specified process conditions. The physical properties of each batch of rubber materials shall be tested according to the requirements of 1~1 and 6 in Table 1. 4.3 When any of the following situations occurs, the technical requirements specified in this standard shall be fully tested. - When a product is transferred to production or a new product type is identified. - After formal production, if there are major changes in materials and processes that may affect product performance. - At the end of each quarter of normal production. - When a product is discontinued for more than three months and production is resumed. - When the inspection results are significantly different from the last type inspection. - When the national quality supervision agency proposes a type inspection requirement. 4.4 When the inspection results are unqualified, double samples shall be taken for re-inspection of the unqualified items. If the re-inspection is still unqualified, the rubber material is allowed to be conditioned once. After conditioning, a full performance test shall be carried out. If there are still unqualified items, the batch of rubber materials shall be unqualified. 5 Test method
5. 1 Hardness shall be tested in accordance with GB/T 531. 5.2 The tensile strength and elongation at break shall be tested in accordance with GB/T528. 5.3 The compression set shall be tested in accordance with GB/T7759. 5.4 Hot air aging shall be tested in accordance with GB/T 3512. The waveproof body shall be tested in accordance with GB/T1690. 5.5F
5.6 The brittle temperature shall be tested in accordance with GB/T1682. Marking, labeling, packaging, storage
The outer packaging of rubber materials shall be clearly marked, including the material name, material code, production date, batch number, manufacturer name, etc. 6.1
HG/T3089—2001
In addition, there shall be signs for sun protection, moisture protection and prohibition of contact with corrosive substances. 6.2 Each inner package shall be attached with a label, which shall indicate the standard number, material code, production date, vulcanization conditions, quantity, qualified mark, manufacturer name, etc.
6.3 The rubber material should be packaged with materials that do not damage or pollute it. Then pack it into boxes, with each box not exceeding 50kg. 6.4 The rubber material should be stored in an environment with a temperature of 0-28℃ and a relative humidity of no more than 80℃, and the distance from the heat source should not be less than 1m. 6.5 The rubber material is not allowed to come into contact with acid, alkali, oil, and organic solvents during storage, and should be protected from sunlight, electric arc, ultraviolet rays and their rays.
6.6 Under the above storage conditions, the storage period of the rubber material is three months. For rubber materials that exceed the storage period, a full performance test should be carried out according to the provisions of Table 1, and they can only be used after passing the test.
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