Since the release of GB / T 18801-2015 air purifier in September 2015, it has been widely recognized in the industry and plays an important role in standardizing the development of the industry. However, after five years of development, the standard has been unable to adapt to the current speed of technological development. Therefore, China household electrical appliances research institute, together with mainstream enterprises in the industry, launched the revision of GB / T 18801-2015 standard, adjusted some test methods and parameter requirements, and standardized sterilization, virus removal and other contents that consumers are very concerned about. < p > < p > < p > < p > the reporter of electrical appliance learned that from September 22 to 23, 2020, the working group on standard revision held the fifth discussion meeting. At present, consensus has been reached on most of the revised contents, and there are still some parameters that need to be further retested. The standard is expected to be revised in March next year and will be submitted for approval. < / P > < p > in the five years since the implementation of GB / T 18801-2015, some problems such as the vacancy of some contents of the standard and the lack of detailed technical requirements have gradually become prominent. Therefore, it is the main content of the standard revision to make up for the deficiency and refine. < / P > < p > first of all, the revised standard has a wider scope of application. The person in charge of kodebo Apollo said that at present, there are more and more air purifiers with large air volume on the market, and the performance of Cadr exceeds the scope of standard test. This revision will improve the applicability of the standard.
GB/T 18801-2015 has stipulated four core indicators of air purifier, which are clean air volume (Cadr), cumulative purification capacity (CCM), energy efficiency and noise. Each index has corresponding requirements or test methods, and the correlation between the parameters is relatively low. More correlation depends on the industry. Consumers should pay attention to “three high and one low” (i.e. high Cadr value, high CCM value, high energy efficiency and low noise) when purchasing ）To promote. < / P > < p > it is understood that in order to increase the selling points of products, some enterprises only pay attention to the improvement of individual indicators, ignoring the level of other indicators, resulting in poor consumer experience. Taking the Cadr value that consumers are most concerned about as an example, in order to improve the Cadr value, some enterprises increase the air volume of the products, resulting in high product noise. < / P > < p > therefore, in the process of this revision, the working group considered to increase the link between the indicators. Xu Kangning, yadu product manager, said that for example, if the air purifier with a Cadr value of 1000m3 / h, the noise would have to be lower than a certain decibel before it could be qualified. He said that at present, the working group is still discussing the correlation between the various data and collecting information. < / P > < p > at the same time, the testing of gaseous pollutants will also change. According to GB / T 18801-2015, only formaldehyde is tested for gaseous pollutants. Chen Laixing, R & D director of Lake air purification, pointed out that in the actual environment, formaldehyde is only one of the harmful gases. In order to better meet the air purifier’s removal and attenuation of harmful gases in the actual environment, the working group discussed and decided to add “composite loading” evaluation and test method in the standard to test the mixed gas. “Electrical” reporter learned that the mixed gas will be composed of formaldehyde, toluene and other four gases. In addition, the standard revision will also put forward requirements for sleep noise blocking. At present, the preliminary discussion is that sleep noise blocking must be less than 42db. Standby power requirements will also be more refined. Xu Kangning told electric appliance that the revised standard divides the standby mode of air purifier into pure plug-in standby mode and networking standby mode, and puts forward corresponding standby power requirements for different modes. It is reported that this revision draws lessons from the European Union standards and is in line with international standards, which is conducive to the export of products. In the post epidemic era, consumers pay more and more attention to sterilization and disinfection. Lu Jianguo, deputy chief engineer of China Household Appliances Research Institute, said that the revision of the standard will standardize sterilization, disinfection and odor removal. “At the same time, the energy efficiency standards for air purifiers have been released and implemented, and there are clear energy efficiency test methods. Therefore, the energy efficiency requirements of the standard are also revised with reference to the national standards.” Lu Jianguo said. < p > < p > as a whole, there are many contents in the revision of the standard, so the experimental data involved are also relatively complex. The person in charge of kodebo Apollo said that the industry has reached an agreement on the direction of the revision, but the specific evaluation method is still under discussion. Currently, the comparative data of various laboratories are being collected, and faft has also participated in the verification test. < / P > < p > with the refinement of the standard test methods, higher requirements will be put forward for the laboratory. A person in the industry pointed out: “for some tests, many enterprises do not have up to standard laboratories, which is a problem in the current standard revision process.” < / P > < p > in recent two years, the air purifier industry has repeatedly failed to pass the spot check, and many of them have been listed on the list. The revision of the standard will raise the technical threshold, speed up the survival of the fittest, vigorously promote the upgrading of industrial structure and standardize the development of the industry. < / P > < p > at present, the revision of the standard has entered the mid-term stage. After 1-2 discussion meetings, the working group will complete the revised version of the standard. “Electrical” reporter learned that the standard is expected to be revised in March 2021, and enter the stage of approval. After the revision and release of the standard, a large number of backward products will be eliminated. According to Lu Jianguo, according to the previous situation of the industry, the unqualified rate of products in the industry reached 30%, especially those related to sterilization and disinfection. “The new standard will also regulate the continued effectiveness of technical indicators. With this requirement, companies that only assemble filters in their enclosures will be eliminated. ” Global Tech