HG/T 2344-1992 Vulcanization accelerator TETD (tetraethylthiuram disulfide) HG/T2344-1992 standard download decompression password: www.bzxz.net

Chemical Industry Standard of the People's Republic of China
Vulcanization Accelerator TETD
(Tetraethylthiuram disulfide)
Subject Content and Scope of Application
HG/T 2344--92
This standard specifies the technical requirements, test methods, inspection rules, marking, packaging, transportation and storage of vulcanization accelerator TETD. This standard applies to TETD made from diethylamine and carbon disulfide as the main raw materials. Product Name: Vulcanization Accelerator TETD
Chemical Name\Vinyl Tetraethylthiuram
Structural Formula:
Molecular Formula: ChIoN, S,
Relative Molecular Mass: 296.55 (according to the 1989 International Relative Atomic Mass) 2 Reference Standards
(G3 6678 General Rules for Sampling of Chemical Products
GB 11409.1 Determination method of melting point of rubber antioxidant and vulcanization accelerator GB11109.4 Determination method of heating loss of rubber antioxidant and vulcanization accelerator GB11409.5 Determination method of sieve residue of rubber antioxidant and vulcanization accelerator GB11409.7 Determination method of ash content of rubber antioxidant and vulcanization accelerator 3 Technical requirements
The TFID of vulcanization accelerator shall meet the requirements of the following table. Approved by the Ministry of Chemical Industry of the People's Republic of China on June 1, 1992 CH
Implementation on July 1, 1993
Appearance (monthly test)
Initial melting point·℃
Heating loss, %
Ash·%
Sieve residue (0.85mm), %
4 Test methods
4.1 Determination of melting point
HG/T 2344- 92
Superior products
4.1.1 Electric melting point determination device according to GB11409.1). 4.1.2 Allowable difference
Light yellow or off-white powder
The difference between the two parallel determination results shall not exceed 0.5℃, and the arithmetic mean shall be taken as the initial melting point of the sample. 4.2 Determination of heating loss
According to GB11409.4. Sample weight 2.8~-3.2g, heating temperature 40~45℃. 4.3 Determination of ash
According to GB 11409.7, sample weight 2.8-~3.2g; ignition temperature 800±20℃. 4.4 Determination of sieve residue
Qualified products
According to the following method in GB11409.5. The standard sieve (GB6003) specification is $200mm×50mm/0.850mm. 5 Inspection rules
5.1 The vulcanization accelerator TETD should be inspected by the quality supervision and inspection department of the manufacturer, and each batch of products leaving the factory should be accompanied by a quality certificate in a certain format.
5.2 The vulcanization accelerator TETD is a batch of uniform products per packaging. 5.3 The user has the right to inspect and accept the received products in accordance with this standard. 5.4 Sampling method
5.4.1 Take the sample unit according to Table 2 in GB6678. 5.4.2 Use the random sampling method to take equal samples from the upper, middle and lower parts of the bag (barrel) with a sampling tube and put them in a clean plate. 5.4.3 After finely mixing the sample, take out no less than 300g by quartering and put them into two clean and dry ground-mouth bottles. The bottle mouth is sealed and marked with: manufacturer name, product name, batch number, sampling date. One bottle is sent to the quality supervision and inspection department for inspection, and the other bottle is stored in a dark place for re-inspection. The shelf life is three months. 5.5 If the inspection result does not meet the requirements of this standard, samples should be taken from two times the packaging bags (barrels) for re-inspection. If the re-inspection results still do not meet the standards, the batch of products will be downgraded or rejected. 5.6 When the supply and demand parties have objections to product quality and require arbitration, the two parties can negotiate to select a testing agency and conduct arbitration and analysis in accordance with the provisions of this standard.
6 Marking, packaging, transportation and purchase and storage
6.1 Marking
Each bag (barrel) should be marked with the manufacturer name, product name, trademark, grade, this standard number, batch number, net weight, and production date in a conspicuous position. 6.2 Packaging
6.2.1 Vulcanization accelerator TETD should be packed in bags (barrels), polypropylene or polyethylene woven bags, lined with polyethylene bags, and the net weight of each bag (barrel) is 20±0.1kg, 25±0.1kg or 40±0.1kg, etc. 6.2.2 Each batch of packaged finished bags (barrels) should be accompanied by a quality certificate, which includes the manufacturer's name, product name, grade, net weight, ex-factory date and this standard number. 6.3 Transportation
During transportation, it should be protected from rain and moisture, and should be handled with care during loading and unloading to avoid damage to the packaging (barrel). 6.4 Storage
6.4.1 The product should be stored in a dry warehouse, and should be more than 0.5m away from the wall; it should not be placed near the upper and lower sewers and heating equipment to avoid mixing or deterioration. This product is flammable and must not be placed near fire. 6.4.2 The storage period of vulcanization accelerator TETD is 1 year. It can still be used after passing the inspection after exceeding the storage period. Precautions for use
This product is irritating to the skin. Avoid contact with eyes and skin. Wash thoroughly after contact with water 311
The liquid is filled with gas
Temperature range, C
Minimum scale, C
Long scale line:
Scale mathematics,
Total length mm
Rod Diameter.mm
Diameter of mercury column, mm
Length of mercury ball.mm
Design length.mm
Distance from the upper end of mercury ball to the lowest scale line, mm Pre-shapebzxZ.net
Allowable error·
Additional instructions:
HG/T2344—92
Appendix A
Specifications of melting point thermometer
(reference)
This standard is proposed by the Science and Technology Department of the Ministry of Chemical Industry of the People's Republic of China. This standard is under the jurisdiction of Shandong Chemical Research Institute. This standard is drafted by Shenyang Northeast Additives General Factory. The main drafters of this standard are Yan Ya and Wang Yuzhen. Specification
50--75
1(per grid)
10(per grid)
300-~320
From the date of implementation of this standard, the original chemical industry standard IG2--47G-83 & Vulcanization Accelerator DIN ETD" shall be invalidated.
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