Some standard content:
Chemical Industry Standard of the People's Republic of China
HG/T2455-93
Alkyd mixed paints of various colors
Published on 1993-06-29
Published by the Ministry of Chemical Industry of the People's Republic of China and implemented on 1994-04-01
W Chemical Industry Standard of the People's Republic of China
Alkyd mixed paints of various colors
Subject content and scope of application
HG/T2455-93
This standard specifies the technical conditions and test methods, acceptance rules, packaging, marking, storage and transportation of alkyd mixed paints of various colors.
This standard applies to alkyd mixed paints of various colors prepared from alkyd resins, pigments, extenders, driers and organic solvents. The coatings specified in this standard are suitable for decorative protection of surfaces of building materials, woodware, metals, etc. 2 Reference standards
GB/T1726 Determination of hiding power of paint
GB1727 General preparation of coating film
GB/T1728 Determination of drying time of paint film and putty film Pendulum damping test
GB/T1730 Determination of paint film hardness
GB3186 Sampling of coating products
GB/T5208 Determination of flash point of coatings Rapid equilibrium method GB/T6751 Determination of volatile and non-volatile matter in paints and varnishes GB/T6753.1 Research on coatings Determination of fineness of grind GB/T6753.4 Determination of paint flow time ISO flow cup method Paint sample state adjustment and test environment conditions GB9278
GB9750 Packaging mark for paint products
Paints and varnishes Determination of 20°, 60° and 85° specular gloss of paint films without metallic pigments GB/T9754
GB/T9761
3 Technical requirements
Paints and varnishes Visual colorimetry of paints
The products should meet the technical requirements in the following table.
State in the container
Color and appearance of paint film
Flow time, s
Fineness, μm
Drying time, h
Hiding power g/m2bzxz.net
Not less than
Not more than
Not more than
Approved by the Ministry of Chemical Industry of the People's Republic of China on June 29, 1993
Uniform after stirring, no hard lumps
Conform to the standard sample, within the color difference range, the paint film is smooth and flat 40
Implemented on April 1, 1994
Item W.|| tt||Red, yellow
Blue, green
Gloss,
Hardness, double pendulum
Volatile content, %
Workability
Recoatability
Flash point, ℃
Anti-skinning (48h)
4 Test method
4.1 Test conditions
HG/T2455—93
Not less than
Not less than
Not greater than
Not less than
4.1.1 Sample state adjustment and test environment conditions shall be carried out in accordance with the provisions of GB9278. 4.1.2 Paint film-general preparation method shall be carried out in accordance with the provisions of GB1727. 4.2 State in container
According to 4.3 of GB3186.
4.3 Paint film color and appearance
According to GB/T9761.
4.4 Flow time
According to GB/T6753.4 with No. 6 cup. 4.5 Fineness
According to GB/T6753.1.
4.6 Drying time
According to GB/T1728 (surface dry: method A, actual: method B). 4.7 Hiding power
According to GB/T1726 with method A.
4.8 Gloss
According to GB/T9754 with 60° mirror gloss meter. 4.9 Hardness
According to GB/T1730 double pendulum hardness tester. 4.10 Volatile content
According to GB/T6751.
4.11 Applicability
No obstacles when painting
No obstacles for repainting
No skinning
Two pieces of tinplate 700mm×150mm×（0.2~0.3）mm, dilute the paint with the specified thinner to the viscosity specified in the standard. Use a brush to paint on the tinplate, and you will not feel any difficulty during the operation, which is called "no obstacles when painting". 4.12 Repainting adaptability
According to the method in 4.11, after the first coat of the paint is completely dry, it is easy to brush and there is no obstacle when applying the second coat of paint. 2
W.4.13 Flash point
According to GB/T5208.
4.14 Anti-skinning
HG/T2455—93
Fill the sample to 3/4 of the 1/3L paint can and seal it. After storing at 23±2℃ for 48h, open the cover and check whether there is any skinning.
5 Inspection rules
5.1All technical indicators listed in this standard are type inspection items. Except for flash point, recoatability, construction performance, anti-skinning, and the state in the container, which are inspected once a month, the rest are factory inspection items. 5.2 The product shall be inspected by the inspection department of the manufacturer in accordance with the provisions of this standard. The manufacturer shall ensure that all products leaving the factory meet the technical requirements of this standard. The product shall have a certificate of conformity and, if necessary, instructions for use and precautions. 5.3 The receiving department has the right to inspect the product according to the provisions of this standard. If the quality is found to be inconsistent with the technical indicators of this standard, the supply and demand parties shall jointly re-sample and re-test according to GB3186. If it still does not meet the technical requirements of this standard, the product is unqualified and the receiving department has the right to return it.
5.4 The product is sampled according to GB3186, and the sample should be divided into two parts, one sealed and stored for reference, and the other for inspection. 5.5 The supply and demand parties shall check and verify the product packaging and quantity. If the packaging is leaking or the quantity is inconsistent, the relevant departments shall be notified in time.
5.6 If there is a dispute between the supply and demand parties over product quality, the product quality supervision and inspection agency shall perform arbitration inspection. 6 Packaging, marking, transportation and purchase and storage
6.1 Packaging and marking shall be carried out in accordance with GB/T9750 6.2 Products should be stored in clean, dry and sealed containers. The container shall be attached with a label indicating the product model, name, batch number, weight, manufacturer name and production date.
6.3 The product should be stored in a ventilated and dry place, and should be protected from direct sunlight. It should be isolated from fire and heat sources. When the temperature is too high in summer, it should be cooled down.
6.4 The product should be protected from rain and sunlight during transportation, and should comply with the relevant regulations of the transportation department. 6.5 The product has an effective storage period of one year from the date of production under the storage conditions in accordance with Article 6.3. 3
W.HG/T2455—93
Appendix A
Construction reference
(reference)
A1 Construction is mainly by brushing, but it can also be sprayed. If the paint is too thick, add No. 200 solvent oil and turpentine to adjust it. Stir the paint thoroughly before use. If there is paint skin and coarse particles, it must be filtered. A2
A3 The paint contains organic solvents such as No. 200 solvent oil and xylene, which is a flammable liquid and has certain toxicity. The construction site should pay attention to ventilation, take measures such as fire prevention, anti-static, safety, and prevention of poisoning, and comply with the safe operation procedures and relevant regulations for coating operations. Additional notes:
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 the National Technical Committee for Standardization of Paints and Pigments. This standard was drafted by the Northwest Paint Factory and the Paint Industry Research Institute of the Ministry of Chemical Industry. The main drafters of this standard are Guo Xiujin, Liu Jiyuan, Guo Shuqin, Shen Zonglan, 4
W.
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