HG/T 2564-1994 Antioxidant DLTDP HG/T2564-1994 Standard download decompression password: www.bzxz.net

Chemical Industry Standard of the People's Republic of China
Antioxidant
Main Contents and Scope of Application
HG/T 2564
This standard specifies the technical requirements, test methods, inspection rules, marking, packaging, transportation and storage of antioxidant DLTDP. This standard applies to the antioxidant DLTDP (monolauryl thiopropionate) produced with thiodiol and 1-diol as raw materials. It is mainly used as an auxiliary anti-rat agent for synthetic materials such as polyolefins. Molecular formula: CsnHs(), S
Structural formula:
CH,CH,COOC12H2
CH,CH,COOC12H25
Relative molecular weight: 514.55 (according to the international relative atomic mass in 1989). 2 Reference standards
GB/T 601
GB/T 603
GB/T 618
GB/T 1664
GB/T 1668
GB/T 3049
GB/T 6678
Chemical reagents
Chemical reagents
Preparation of standard droplets for titration analysis (volumetric analysis) Preparation of preparations and products used in test methods General method for determination of crystallization point
Chemical reagents
Determination of the appearance color of plasticizers (platinum-cobalt colorimetry) Determination of the acid value of plasticizers ()
General method for determination of iron content in chemical products O-phenanthroline spectrophotometry General rules for sampling of chemical products
GB/T 6G82.
. Specifications and test methods for water used in analytical laboratories GB/T11409.4
GB/T 11409.7
3 Technical requirements
Method for determination of heating loss of rubber antioxidant and vulcanization accelerator Method for determination of ash content of rubber antioxidant and vulcanization accelerator This product shall meet the following technical conditions:
Crystallization point, C
Acid mgKOH/g
Qingfen%
Melting color (PLCo). No.
Approved by the Ministry of Chemical Industry of the People's Republic of China on February 9, 1994 342
Superior product
White powder or crystal
39.5~41.5
Qualified product
White powder or crystal
36.5--41. 5
1994-10-01 implementation
Iron content, 10°
Heating loss\,
Sieve flux (2mml), %
Note: 1) Heating loss should be checked at least once every two months. 4 Test method
HG/T 2564—94
Qualified products
Unless otherwise specified, the water used in this method shall comply with the third-grade water specifications in GB/T6682. Except for special provisions, the standard solutions and product preparations used in this standard are prepared in accordance with the provisions of GB/T601 and GB/T603. 4.1 Determination of appearance
Take 3g of the sample, place it on the surface of the white paper below, and inspect visually. 4.2 Crystallization point
Measured in accordance with GB/T618.
4.3 Acid value
Dissolve the sample in 1+1 ethanol-benzene solvent and measure it in accordance with GB/T1668. 4.4 Analysis
Measured in accordance with GB/T11409.7. Burn at 800C for 1h. 4.5 Melting color
Melt the sample in a 50~60℃ hot water bath and measure it in accordance with GB/T1664. 4.6 Iron content
Use the residue after 4,4 to measure it in accordance with GB/F3049. 4.7 Heating loss
Measured in accordance with GB/T11409.4, and the temperature is controlled at 35±2℃. 4.8 Sieve flux
4.8.1 Instrument
The specification of standard sieve (CB60/3) is Φ200mm×50mm/2mm4.8.2 Operation method
Weigh 100g sample, accurate to 0.1g, and weigh after sieving. 4.8.3 Calculation
Sieve flux mass percentage X-
Where: m—sample mass·g,
mass of sieve passing material, 8,bzxz.net
5 Test rules
mi×100
5.1 Antioxidant DLTDP shall be inspected by the quality inspection department of the manufacturer. The manufacturer shall ensure that the products shipped meet the technical indicators specified in this standard. The uniform packaging of each reaction tank is considered as a batch. Each batch of products shipped shall be accompanied by a certificate of conformity. 5.2 The user has the right to inspect the product according to this standard. If one item is unqualified, re-sampling and re-inspection should be carried out from the double amount of packaging. If one item is still unqualified, the whole batch of products shall be unqualified. 5.3 The sampling method shall be determined according to the provisions of Table 2 of GB/T6678. Use a sampling probe to sample from any direction and part. The total amount of samples taken in the batch shall not be less than 250g. After fully mixing, divide them into two clean and dry Guangshan bottles, one for testing and one for reference. 5.4 When the supply and demand parties have objections to the product quality, the two parties shall agree on an arbitration opinion. The limit is months from the date the product arrives at the user, and it will not be accepted after the expiration date.
6 Marking, packaging, transportation, storage
6.1 The name of the manufacturer, the number of this standard, the trademark, the product name, the net weight, the production date, and the product grade shall be marked on the outside of the product barrel. 6.2 The product is packaged in a cardboard barrel, with a net weight of 25 kg per barrel, and the barrel is lined with two layers of polyethylene plastic bags. 6.3 The product should be handled with care during transportation and loading and unloading, and should not be thrown or rolled around to prevent damage to the packaging. 6.4 The product should be stored in a cool, dry and ventilated warehouse. It is prohibited to be exposed to the sun or mixed with other products. 6.5 The shelf life of this product is --- years.
Additional instructions:
This standard was proposed by the Technical Supervision Department of the Ministry of Chemical Industry of the People's Republic of China. This standard is under the jurisdiction of the Shanxi Chemical Industry Research Institute. This standard was drafted by Tianjin Lisheng Chemical Factory and Shanxi Chemical Industry Research Institute. The main drafters of this standard are Jiao Pu, Gui Jianying and Ma Yingnan. 341
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