Recently, the State Administration for Market Regulation organized a national supervision and spot check on the quality of interior decoration materials.
This time, 1,051 batches of products produced by 1,044 enterprises were randomly checked, involving 7 kinds of radiators for heating, solvent-based wood coatings, fire doors, rigid polyvinyl chloride (PVC-U) pipes, ceramic tiles, MDF, particleboard, etc. Interior decoration materials products. One batch of ceramic tile products is suspected of being produced without a CCC certificate and has been transferred to the market supervision department where the company is located. A total of 1,050 batches of products produced by 1,043 enterprises were inspected, and 136 batches of products were found to be unqualified, with an unqualified discovery rate of 13.0%.
In this follow-up and spot check, 74 companies failed the last spot check, 8 companies are still unqualified this time), and 66 companies are qualified.
It is understood that interior decoration materials refer to decoration and decoration materials laid, pasted, or painted on the interior walls, floors, ceilings, and other surfaces of buildings, and can have functions such as heat preservation, heat insulation, fire prevention, moisture resistance and beautification of the indoor environment. closely related to people's lives. The overall unqualified discovery rates of such products in the past three years were 13.7%, 16.4%, and 13.0%, respectively.
Among them, the failure rate of fire doors was 19.2%. This time, 198 batches of products produced by 198 enterprises in 18 provinces (autonomous regions and municipalities) were randomly checked, and 38 batches of products were found to be unqualified, with a failure rate of 19.2%. This time, a total of 130 batches were randomly checked in six concentrated production areas of Zhejiang, Guangdong, Hebei, Jiangsu, Sichuan, and Shandong, accounting for about 65.7% of the total batches, and the unqualified detection rate was 20.8%.
The unqualified discovery rate of ceramic tiles was 9.6%. This time, 252 batches of products produced by 245 enterprises in 10 provinces (municipalities) were randomly inspected, of which 1 batch of products was suspected of being produced without a CCC certificate and has been transferred to the market supervision department where the enterprises are located. A total of 251 batches of products were inspected, and 24 batches of products were found to be unqualified, with an unqualified discovery rate of 9.6%.
The unqualified discovery rate of MDF was 15%. This time, 80 batches of products produced by 80 enterprises in 17 provinces (autonomous regions) were randomly checked, 12 batches of products were found to be unqualified, and the unqualified discovery rate was 15%, which was 8.1 percentage points lower than the last spot check. Items such as static bending strength, internal bonding strength, water-absorbing thickness expansion rate, surface bonding strength, and formaldehyde emission were mainly tested. Unqualified items related to formaldehyde release, water absorption thickness expansion rate, internal bonding strength, static bending strength. According to the analysis of technical institutions, the main reasons for the quality problems are: first, the company used inferior wood raw materials; second, the adhesive formula is unscientific, and the amount of glue and hot pressing process is unreasonable; third, the quality control management measures of some small enterprises are not standardized. , lack of necessary control over product quality. This time, a total of 50 batches were randomly checked in the four major industrial agglomeration areas of Shandong Province, Guangxi Zhuang Autonomous Region, Guangdong Province, and Hebei Province, accounting for 62.5% of the total batches. , 26.7%.
The unqualified detection rate of particleboard was 13.1%. This time, 84 batches of products produced by 84 enterprises in 14 provinces (autonomous regions and municipalities) were randomly checked, and 11 batches of products were found to be unqualified, with a failure rate of 13.1%. Items such as static bending strength, internal bonding strength, surface bonding strength, 2h water absorption thickness expansion rate, and formaldehyde emission were examined. Unqualified items involve static bending strength, internal bonding strength, 2h water absorption thickness expansion rate, and formaldehyde release. Spot checks found that 4 batches of products were unqualified for the 2h water absorption thickness expansion rate item. The main reasons for the unqualified product were unreasonable product formulation design, improper sizing, waxing ratio, or improper dosage of waterproofing agent; 7 batches of products were unqualified for formaldehyde emission items. , mainly because the adhesive used by the enterprise itself contains high free formaldehyde, or the unreasonable sizing process and hot pressing process are adopted, resulting in the failure to fully react and cure, and the free formaldehyde remaining in the board is released in large quantities during use. . This time, 41 batches were randomly checked in the three major industrial agglomeration areas of Guangdong Province, Shandong Province, and Hebei Province, accounting for 48.8% of the total batches.