Interpretation of the standard for the VOC emission measurement chamber of paint

1. Meet the standard: GB/T 37884-2019 Determination of Volatile Organic Compound (VOC) Emission in Paint

2. Execution time:2020-07-01

3. Main application products: wall coatings, exterior wall coatings, primers, top coats, and can also be used (printer inks, wood floors, wallpapers, latex paints, etc.)

4. The technical parameters of the VOC emission test chamber

4.1 Temperature in the cabin:20℃〜40℃, fluctuation ±1℃;

4.2 The relative humidity of air in the cabin: 40%〜60%, with a deviation of ±5%;

4.3 The number of air changes in the cabin: 0.5h^-1〜2.0h^-1;

4.4 Air velocity near the surface of the test piece: 0.1 m/s~0.3 m/s;

4.5 The cabin air leakage is at least 5% of the air supply;

4.6 The cabin should meet a positive pressure of 10 Pa ± 5 Pa;

4.7 The background concentration of total volatile organic compounds (TVOC) is not more than 50 μg/m³;

4.8 The background concentration of a single target volatile organic compound is not more than 5 μg/m³;

4.9 The average recovery rate of toluene and alcohol ester (2.2.4-trimethyl-1.3-pentanediol and its isomers) is not less than 80%

Huanyi Industry (Hong Kong) Limited