The mattress manufacturer has a 5 PCT standard furniture testing center: it should be less than 1.5 cm.

A few days ago, the 114 news hotline of this newspaper received a lot of calls from the public, reflecting the mattresses purchased by the family, and there was a significant error with the size indicated. The person in charge of the China Furniture Testing Center said that the error of the mattress should be within 1.5 cm.
A thousand dollars purchased a "shaped" mattress. Ms. Ni, who lives in Minhang District, bought a mattress through TV shopping for 1,375 yuan. However, Ms. Ni found that the mattress and the bed frame are not very close, especially in terms of length, it seems that there is one less.
Ms. Ni used a tape measure and found that the size of the mattress was significantly different from the specifications on the outer package. "The length is 196 cm, the width is 178 cm, the outer package shows 180 cm × 200 cm, and the amount is 178 cm × 196 cm."
The mattress bought by Mr. Wang is even more unsightly. The four corners of the mattress are two acute angles and two obtuse angles. From a distance, the entire mattress has a parallelogram.
The rules and regulations merchants set their own "we have 5 cm error in the size of the mattress, so it is not a quality problem." Ms. Ni bought the mattress manufacturer. The staff responsible for the after-sales service told the reporter that Ms. Ni’s mattress was a qualified mattress. The outer packaging of the mattress and the TV advertisement were marked with a 5 cm error.
The so-called "5 cm standard", the staff member said that it is a standard within the industry regulations. If Ms. Ni really wants to change the mattress, she must first add the shipping cost and packaging fee. After the mattress is returned to the original factory for inspection, it can be determined whether it can be replaced.
The after-sales service department of the mattress purchased by Mr. Wang also stated that the mattress purchased by Mr. Wang is in full compliance with the standard. “Our industry standard is that the diagonal error is within 3 cm. Mr. Wang’s mattress does not exceed this range, so it is not in the scope of our return.” Mr. Yao said, “The rectangular requirement cannot be guaranteed. The error of the corner is within 3 cm and the country is recognized."
The error should not exceed 1.5 cm. It is also an industry regulation. Why is it different for each manufacturer? In response, the head of the National Furniture Testing Center refuted it. "It is impossible to have such a large error, up to 1.5 cm." The person in charge said, "Because of the different manufacturing processes, there are indeed some errors in the production process of the mattress, but not as much as they say."
The reporter learned that according to the national regulations on furniture testing, the length error of the mattress is within 1.5 cm, and the width error is within 1 cm. Such errors take into account both the actual situation of production and the overall aesthetics of the bed.
According to the person in charge of the National Furniture Testing Center, the current state has a size error for mattresses, but this regulation is not yet in the scope of quality testing. The general quality of furniture inspection is that formaldehyde does not exceed the standard, and it has an impact on human health. As for how the size error is constrained, it is still inconclusive.
The reporter learned from the Consumer Protection Committee that once consumers buy such a mattress, they can only be understood as “unsatisfactory goods” rather than “quality unqualified defective products”. Consumer complaints can only be related. Three bags of regulations to deal with. For example, some products are returned and exchanged in one week, but if this period is exceeded, it can only be seen from the situation of consumers communicating with the factory.

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