Weak current College】 【humidifier product performance standards --- Power By】 【China power house network.

<br> Humidifier gradually become people living and working in a household. In order to standardize the humidifier product production, protection of the legitimate rights and interests of consumers, national household appliances Standardization Technical Committee in mid-2007 organized the humidifier "national standards ( .hereinafter referred to as standard), is now complete and submit the approval of the authority for Standardization, is expected to launch in early 2009. <br> <br> Terms and definitions <br> <br> Currently on the market a wide variety .of humidifier, the most common are ultrasonic humidifiers, direct evaporative humidifiers, electric humidifiers and centrifugal humidifier. Because these products in the structure and principles of humidification, the pilot project of allowable values also vary, so the standard first the humidifier and related terms are .strictly defined. <br> <br> (1) wet weight <br> <br> Humidifying capacity is the most important parameters of the humidifier, some enterprises to meet consumers pursuing large humidifying capacity, feel free to stop large humidifying capacity, standard .strictly humidifying capacity should not be less than the amount of product rated humidification of nominal value. <br> Because of the evaporative humidifiers Direct humidification of the relative humidity of the environment are closely related, so the humidification of test method explicitly stipulates: "for .direct evaporative humidifiers (included with direct evaporative humidifiers of compound), test environment relative humidity should remain (30 ± 5)% ", which can be more scientific, accurate determination of the amount of humidification humidifier; and for other types of humidifier, the .relative humidity on the measurement of moisture content with almost no influence, so the relative humidity of 30% ~ 70% range. <br> <br> (2) humidification efficiency <br> <br> Humidification efficiency refers to the amount of actual .humidification humidifier and input power ratio, reflects the number of units-power could produce, humidifying capacity is a measure of the humidifier is an important quality performance indicators. <br> In today's world, the increasing shortage of energy, the standards in the development .process fully into account the energy saving requirements. In order to guide consumers to purchase the product of energy saving and environmental protection, promotion of enterprise development in a more efficient products, the standard increases the humidification efficiency of the item and the index is divided into .A, B, C, D four grades, see table 1. <br> <br> (3) noise <br> <br> Considering the humidifier can use in the bedroom, if the noise is too large will have some impact on .the consumer, so the standards on noise indicators were severely restricted. <br> <br> Noise test with GB/T4214.1-2000 "acoustic household and similar electrical appliances-noise testing method part 1: General requirements" in the test method .. For General humidifier, the dimensions are not greater than 0.7m, using a 10 point of hemispheric measurement surface; for larger humidifier, if more than one direction dimension, adopted with 0.7m nine points for the measurement of surface of the rectangle. The .end result should be converted to the sound power level. <br> <br> (4) evaporator core (for) life <br> <br> For direct evaporative humidifiers, evaporator core () is the greatest impact on performance. With the .continuous use of humidifiers, evaporator core () 's efficiency will continue to reduce the amount of the moisturizing is declining. According to the actual situation, participation in standard setting of the representative agreed that when the humidifier humidification levels reduced to the initial wetting rate .of 50%, as the failure of evaporative wick. For replaceable evaporative Wick (readers), life should not be less than 1000 hours (approximately a wet season with time). <br> <br> Accessibility <br> <br> Now .the market many humidifier product with softened water, humidity display Accessibility, in order to prevent certain products obviously does not have this feature, or this feature will not be able to play the effect, by means of false information to mislead consumers, and standards on .the accessibility with specific requirements. <br> <br> (1) water softener <br> Water quality is excellent for ultrasonic humidifiers and direct evaporative humidifiers useful life and performance will have a significant impact, so some humidifiers with softened water features. For .this type of humidifier, standard provisions softener softening water hardness should not exceed 100mg / L (Beijing city of average water hardness approx. 250mg / L). Tests have proven that this hardness for increased efficiency and use of humidifiers life, reduce white phenomenon will .play a very good effect. <br> <br> In addition, softener softening in failure before the total amount of water should not be less than 100L. If softening water is too small, the consumer must be frequently replaced water softener, which to .a certain extent undermined the interests of consumers. <br> <br> (2) humidity display <br> <br> For humidity display function of the humidifier, its humidity display device should have a certain degree of accuracy. The standard provides that ., in the relative humidity of 30% ~ 70% of its humidity display of error should be within ± 10%, so as to avoid the error is too big, but on the misleading of consumers. <br> <br> (3) .water protection <br> <br> Water level on the performance of certain humidifier had a notable impact humidifier should have water protection features to prevent consumers unknowingly, the humidifier with consistently low-performance, low efficiency of work status. <br> <br .>.