Furniture and building materials are becoming one of the most concerned issues in home decoration because of the “ formaldehyde content exceeding the standard â€. The industry believes that another main reason for the excessive prohibition of formaldehyde in the industry is that the existing detection methods in China are “destructiveâ€. Strong, leading to the difficulty of operating the furniture inspection .
Xianghe Furniture City official website recommended search reading: environmentally friendly furniture fatal injury furniture formaldehyde over standard furniture purchase problem
Mr. Liu’s recent mood in the Northern Drift 80 is a mixed feeling: I’m glad that after many years of struggle, I finally got a home in Jing’an. My worries are that the newly added new furniture, although it has taken two months to ventilate, but in the room. There are still some irritating smells, will the pregnant wife be affected?
With questions, Mr. Liu invited an indoor pollution control agency for testing. After comparing the air indicators in the furniture and furnitureless environment, the inspectors determined that the pungent odor was emitted from the furniture bought by Mr. Liu. Nowadays, similar incidents are not uncommon in the home decoration process. Furniture and building materials are one of the most concerned issues in home decoration because of the “formaldehyde content exceeding the standardâ€.
The problem of excessive formaldehyde in furniture is serious
According to the results of a sampling inspection of furniture products by the Shanghai Municipal Bureau of Quality and Technical Supervision in November last year, there were 51 batches of unqualified products in 156 batches. Many of the unqualified furniture products were caused by the lack of formaldehyde emission. Meet the standards". Not long ago, the Shaanxi Provincial Bureau of Quality and Technical Supervision announced that the results of the quality supervision and inspection of furniture products in the second quarter of this year showed that among the 95 batches of 95 production and distribution companies in the bureau, 19 batches of unqualified samples were tested. . The main problems of these products are not only related to the requirements of metal parts, the strength of the drawer slides, but also other reasons.
According to China's testing standards for formaldehyde content of formaldehyde, the amount of formaldehyde released should not exceed 1.5mg/L. However, in these products with problems in sampling, if it is not difficult to find a little, some formaldehyde releases will reach a limited amount. Double, up to more than 5 times.
According to analysts, the main reason for the increasing problem of excessive formaldehyde in furniture is that most of the panel furniture in China is bonded by fiberboard or particleboard, and these materials need to be bonded with aldehyde adhesives during the production and assembly process of furniture materials. For example, many panel furniture use an adhesive called urea-formaldehyde resin during the manufacturing process. From a chemical point of view, "urea resin" is a direct compound of formaldehyde and urea. The product undergoes a "decomposition reaction" of organic matter under natural conditions to release formaldehyde. If you encounter a hot and humid environment, just like adding a "catalyst", the decomposition rate will double, and the smell of formaldehyde will naturally be heavier.
In the home industry, there are quite a few small businesses. In addition to weak control of raw materials and other product standards, these companies use large-quality wood-based panels and inferior adhesives. The industry generally believes that another major reason for the excessive prohibition of formaldehyde in the industry is that the existing detection methods in China are “destructiveâ€, which makes it difficult to operate the furniture inspection.
The current testing method is "destructive"
Mr. Liu mentioned in the above mentioned that after I found out that there was a problem with the furniture, he asked the merchant to return the goods. Who knows that the merchant did not buy it, but said that a certain amount of formaldehyde can protect the furniture, as to whether formaldehyde is Exceeding the standard, he hopes that Mr. Liu can send the furniture to the designated professional testing institution of the country for inspection. If the formaldehyde is indeed exceeding the standard, it can be exchanged.
"There is no problem with the inspection fee, but it is not worthwhile to cut the tens of thousands of pieces of furniture into several pieces for testing. If the rights are not met, the cost is too high." In desperation, Mr. Liu had to give up. I sent it for inspection.
According to a survey, in the complaints about household products, the number of complaints about panel furniture has been among the best for many years. In particular, “formaldehyde exceeds the standard†is a pain that consumers cannot say, and it has become a headache for the furniture industry. However, for a long time, because the current method of detecting furniture in China is difficult to operate, the success rate of consumer rights protection is not high. In many cases, rights protection must rely on the company to say good things!
At present, the current furniture inspection in China is the “dryer methodâ€. The process is roughly the same: generally, the plate samples are first extracted from the household products, and then sent to the provincial and above laboratories for chemical testing. It is worth noting that when extracting the sample of the board, it is necessary to destroy the integrity of the furniture. This kind of cutting the furniture into small pieces for testing will not only generate a certain cost, but also cause even if the test result indicates that the formaldehyde is excessive. It is difficult to guarantee a smooth exchange of refunds, as many merchants will refuse to compensate consumers on the grounds that "furniture products have been damaged."
"Environmental test warehouse method" is worth learning
Compared with the domestic “slab sampling test method†at the cost of destroying the integrity of furniture, some countries in Europe and the United States have already implemented the “environmental test warehouse methodâ€. The specific operation of this test method is: first place a single piece of furniture. In a closed air compartment, after a certain period of time, the "air sample" in the cabin is extracted for testing.
The difference between this kind of detection method and the current method used in China is mainly as follows: First, the integrity of the structure of the furniture product is not damaged, which is beneficial to the rights protection afterwards; Secondly, the furniture will be placed in the “closed air compartmentâ€. "Checking, this is equivalent to simulating the use of furniture, and the results will be more convincing. Third: The “environmental test warehouse method†will cost less than the “plate sampling test method†without damaging the products to be inspected.
In addition to the large differences in detection methods from the United States, China's regulations on the amount of formaldehyde emission from furniture still need to be standardized and improved. It is understood that in today's world, the United States has the strictest control of "the detection of formaldehyde emission from furniture." In 2009, the "CARB Regulations" issued by the United States made detailed specifications for all aspects of furniture production. Even the detection of formaldehyde penetrated into every part of the circulation of furniture products, rather than being limited to sampling the "finished furniture". .
In contrast, China's existing standard for "formaldehyde content", the limit of formaldehyde content in the "indoor air quality standard" is less than or equal to 0.10mg per cubic meter, and the formaldehyde content in the "Limited harmful substances in wood furniture for interior decoration materials" The acceptable standard is 1.5 mg per liter or less. Relevant experts said that the inconsistency between the two standards caused the formaldehyde content of the furniture to be inconsistent with the formaldehyde content in the air. As a result, sometimes the test results violated one of the standards but met another standard, and the merchant refused to change for this reason. Goods return.
Buying furniture requires some basic knowledge
The new standard will be introduced soon, which is undoubtedly an exciting news for consumers. But when consumers buy furniture, it is very necessary to master some basic common sense.
There is a saying in the industry that consumers should purchase as appropriate when they encounter furniture in the following situations. First: the home has a strong pungent smell; second: the informal store is sold, no quality inspection certificate; third: the furniture products produced repeatedly on the national and local quality inspection departments black list; fourth: panel furniture No sealing treatment; Fifth: unable to produce formaldehyde content specification; Sixth: Engage in OEM production, the price is very outrageous; Seventh: After-sales warranty is incomplete.
Professionals believe that the quality of indoor air is closely related to the health of family members. In addition to the common methods of using activated carbon adsorption, opening doors and windows to allow natural circulation of air, placing green plants indoors, and purchasing air purifiers, . Before you check in, it is best to have a professional testing agency to conduct "indoor air quality testing", and wait until the air quality is up to standard.
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