The detection of hazardous substances in the hotte

2022-10-24
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No "operation" will be needed for the detection of harmful substances in Category 3 furniture

No "operation" will be needed for the detection of harmful substances in Category 3 furniture

November 25, 2014

[China paint information] it won't be long before you doubt that the formaldehyde and other harmful substances in the furniture you use exceed the standard, don't worry about sending them for inspection, and don't worry about the damage of the furniture because of the detection anymore

the "national standard for the limit of harmful substances in wood furniture, mattresses and sofas" formulated by the National Technical Committee for furniture standardization will be published soon. At that time, the furniture submitted for inspection will not only not be damaged, but also detect the content of formaldehyde, VOC and other harmful substances

"furniture will be intact for inspection"

on November 19, it was learned from the "national furniture industry standardization meeting" held in Langfang that the "limit of harmful substances in wood furniture of interior decoration materials (-q-607)," limit of harmful substances in upholstered furniture mattresses (-q-607), "limit of harmful substances in upholstered furniture mattresses", " The standard of limit of harmful substances in upholstered furniture and sofa (-q-607) (hereinafter referred to as the 'national standard of limit of harmful substances in furniture') will be issued soon

according to Zhu Changling, director of the National Technical Committee for furniture standardization, the "three national standards for the limit of harmful substances in furniture" were formulated and submitted to the National Standards Committee for review in 2012 after years of testing and summary. It is expected that the fastest year-on-year increase will be as high as 40000 yuan/ton

Zhu Changling pointed out that the biggest breakthrough of the new standard is that the limit detection of hazardous substances has changed from "specific how to solve the air detection" to "climate box detection", that is, from "damage detection" to "nondestructive testing"

it is learned that at present, when testing harmful substances in furniture, various testing institutions in the market usually dissect the furniture first, take a small piece of it and put it into a sealed box, and then analyze the air quality in the box after sealing for 24 hours. The biggest disadvantage of this kind of inspection is that the furniture submitted for inspection will suffer great damage and can hardly continue to be used

the detection technology in the new standard is upgraded to "climate box detection", which only puts the furniture submitted for inspection completely. Since the current technology cannot theoretically predict the strength performance of materials under variable load into the climate box, it can detect whether harmful substances exceed the standard in 24 hours

"mattresses and sofas can also detect the content of harmful substances"

the "limit of harmful substances in wood furniture of interior decoration materials" released in 2001 has made detailed provisions on harmful substances in wood furniture, and mattresses, sofas and other soft furniture have always been in the absence of national standards

many mattress and sofa enterprises can only choose the "indoor air quality" standard to inspect their products, which is prone to stress embrittlement; Not resistant to benzene, gasoline and other organic solvents; The temperature can reach 260 ℃ for a long time. Many consumers often have to give up because there is no standard to rely on when they encounter disputes about excessive formaldehyde and other harmful substances in upholstered furniture

fortunately, the newly formulated "three national standards for the limit of harmful substances in furniture" has newly added the national standard of "limit of harmful substances" for mattresses and sofas. For the first time, the limit of harmful substances in mattresses and sofas will be written into the national standard. At that time, there will be standards for the detection of harmful substances in mattresses and sofas

"in addition to formaldehyde, VOC content can also be detected"

according to Zhu Changling, the new standard is based on reference to the American "BIFMA" standard and extensive research. At present, the technology has reached the international leading position

it is learned that the new standard can detect the content of VOC and other harmful substances in addition to the content of "formaldehyde". At that time, manufacturers and consumers will have a clearer understanding of the composition and content of harmful substances in furniture submitted for inspection

Zhu Changling pointed out that the new detection method involves the purchase of climate boxes, technical personnel training and other issues, "it is unlikely that all of them are mandatory standards". In addition, Zhu Changling also revealed that the new detection method will have small shortcomings such as long detection time and high detection cost

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