The scope of the old standard is too small
Commonly used upholstered furniture includes two types of sofas and mattresses, mostly made of wooden materials, metal, etc., with springs, bandages, etc. as load-bearing materials, and the surface is made of fabric. The reporter learned that upholstered furniture is a type of wood furniture. In the current national standard GB 18584-2001 "Interior Decoration Materials, Limitation of Hazardous Substances in Wood Furniture", only the formaldehyde emissions from boards used in furniture and heavy metals in paint are targeted. The content of lead, mercury, cadmium, etc. is specified, and there is no description of the harmful substances contained in upholstered furniture.
For the above reasons, many of the current upholstered furniture manufacturers use qualified formaldehyde as the basis for product environmental protection, which is harmful to TVOC (total volatile organic compounds) and azo dyes (decomposable aromatic amines) contained in upholstered furniture. The substance lacks a basis for control. When a consumer encounters a complaint about a problem, the testing agency and relevant departments are helpless because they have no basis to follow. Zhu Changling, chairman of the China Furniture Association, said that formulating standards as soon as possible, supplementing and perfecting the testing items and test methods of hazardous substances, is the key to solving the environmental protection problems of soft furniture consumption.
The new standard clearly specifies and restricts hazardous substances for the first time
Among the 4 new standards that have been approved, "Limits of harmful substances in soft furniture mattresses", "Limits of harmful substances in soft furniture sofas" and "Determination of dimethyl fumarate content in furniture" are national standards that are enforced as technical indicators For the first time, for the complete products of soft furniture sofas and mattresses, clear regulations have been made on the selection of raw and auxiliary materials, production processes and hazardous substances, which provides safety guidance for consumers to purchase soft furniture.
It is understood that the limited amount of harmful substances in the standard of soft furniture is mainly substances that directly damage the health of the body when using the product and affect the environment after the end of use. Luo Xin, deputy director of the National Furniture and Indoor Environmental Quality Supervision and Inspection Center, said that the new standard sets limits for formaldehyde, TVOC, and severe carcinogenic azo dyes in fabrics for sofas and mattresses. As clearly stated in the standard: a one square meter mattress in a cubic meter of flowing air, the formaldehyde emission should be less than 0.1 mg. In a cubic meter of sofa, the formaldehyde emission must be less than 0.05 mg.
At the same time, the selection of corresponding harmful substances in the "Limited Limits of Harmful Substances in Soft Furniture Mattresses" has also increased compared with sofa products. Due to the sensitive odors and odors of spring soft mattresses, long-term exposure to such abnormal odors during sleep with the weakest body resistance will reduce the quality of sleep and may cause user discomfort, insomnia and nausea. In addition, the flame-retardant fabrics of mattresses increase, and some flame retardants are also harmful to the human body. Therefore, the standard also uses five kinds of flame-retardant finishing that are prohibited in the standard of "Technical Requirements for Ecological Textiles GB / T 18885-2009" Agent.
Improve testing methods to maintain consumer safety
Everyone who has encountered environmental problems with soft furniture knows that consumers have been in a passive position before. It is understood that the current detection method for wooden furniture cannot completely and accurately determine the amount of harmful substances released by soft furniture. This detection loophole has also laid a great hidden danger for the furniture industry and the market. The "climate chamber test" adopted by the new standard effectively compensates for this problem. Its detectable range is wider, and the parts that could not be started can be obtained through comprehensive testing. Whether the soft furniture contains wood, steel or sponge As long as there is a material that fails to meet environmental standards, it can be reflected in the comprehensive test results.
Previously destructive testing methods themselves could cause furniture damage. According to reports, the four soft furniture standards will also replace non-destructive testing with non-destructive testing. The "climate box testing" will place the entire piece of furniture in a specific environment for testing. The furniture itself will never be damaged to any degree. Luo Xin said that the cost of using the new method of detection has also increased, about 3-4 times the original, but the use of non-destructive testing to replace the damage detection, saving the cost of production enterprises and also provides convenience for consumers. If the test result is ok, consumers can take it home and continue to use it.
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