1

Basic physical properties

Liquidity

Sampling, appearance, color, density, solid content, fineness, acidity, viscosity, storage stability, flash point, etc

Painting

Flow resistance, covering power, dryness, thickness, polishing ability, etc

2

Routine physical property testing of coating

Appearance and optical performance

Color, gloss, radiopacity, etc

Mechanical properties

Adhesion, flexibility, impact, cupping, hardness, wear resistance, washability, etc

Chemical resistance and corrosion resistance

Water resistance, chemical reagent resistance, stain resistance, heat resistance, temperature change, etc

3

Coating environmental test

Aging, salt spray, humid heat, yellowing, condensation, etc

4

Detection of toxic and harmful substances and prohibited substances

Benzene, methanol, halogenated hydrocarbons, depleting ozone substances, ethylene glycol methyl ether and derivatives of ethylene glycol methyl ether, phthalic acid vinegar, azo pigments, APEO (alkyl phenyl polyethylene ether), banned, polychlorinated biphenyls, formaldehyde, VOC, free diisocyanate vinegar, heavy metals, polycyclic aromatic hydrocarbons, trisubstituted organotin compounds, asbestos, radioactive materials, biological killing agents, etc

5

Special project testing for specialized coatings

Particle size, breakdown strength, electrical strength, etc

1

GB 18581-2020

木器涂料中有害物质限量

Limit of harmful substances of wooden coatings

2

GB 18582-2020

建筑用墙面涂料中有害物质限量

Limit of harmful substances of architectural wall coatings

3

GB 24613-2009

玩具用涂料中有害物质限量

Limit of harmful substances of coatings for toys

4

GB 24409-2020

车辆涂料中有害物质限量

Limit of harmful substances of vehicle coatings

5

GB 30981--2020

工业防护涂料中有害物质限量

Limit of harmful substances of industrial protective coatings

6

GB 38648-2019

室内地坪涂料中有害物质限量

Limit of harmful substances of interior floor coatings

7

GB 38469-2019

船舶涂料中有害物质限量

Limit of harmful substances of marine coatings