Soo saaraha Tuubada VIGA 
Dhawaan, the Nanjing Municipal Quality Supervision Bureau released the results of the 2017 random inspection of the quality of household furnishings, Ku lug yeelashada tubooyinka, Biyaha birta ah, bathroom brackets and paint-free plates. The passing rate of faucets is the lowest at 67.5%, of which the passing rate of faucets priced at RMB 100 and below is only 14.3%.
Heerka aan u qalmin ee tuubooyinka hoostiisa 100 yuan waa sida ugu sarreeya 85.7%
Prior to this, the Nanjing Municipal Quality and Technical Supervision Bureau entrusted the Nanjing Product Quality Supervision and Inspection Institute to conduct a random inspection of 40 batches of spout products sold in Nanjing’s production enterprises, circulation areas and e-commerce platforms. Baadhitaanka ka dib, 27 batches passed and 13 Dufcaddii ayaa fashilmay, oo leh xaddiga kaarka 67.5%.
Nanjing Quality Supervision Bureau has classified the test results based on the product source and price range, and the results are eye-catching.
The 40 batches of faucet products in this random inspection were sampled from physical stores, Xirmooyinka Ganacsiga E-Commerces iyo Shirkadaha Waxsoosaarka, respectively for 20 duceyn, 19 Dufcaddii iyo 1 batch. Iyaga ka mid ah, the physical store product qualification rate is the lowest, 55%; the e-commerce platform product qualification rate is 78.9%; the production enterprise product qualification rate is 100%.
Marka laga eego aragtida qiimaha badeecada, heerka kaarka ah ee wax soo saarka 400 yuan and above is 100% (failure rate 0%), the pass rate of products between 200 yuan and 400 yuan is 85.7% (failure rate 14.3%), 100 yuan to The pass rate of products between 200 yuan is 62.5% (unqualified rate is 37.5%), iyo heerka kaarka ah ee wax soo saarka 100 yuan iyo ka hooseeya waa 14.3% (unqualified rate is 85.7%).
2 batches of metal contaminants in the water nozzle have exceeded the standard
This sampling inspection was conducted in accordance with GB 18145-2014 “Ceramic Sheet Sealed Water Nozzle” iyo GB 25501-2010 “Liquid Water Use Efficiency Limit Value and Water Use Efficiency Grade”. Ka mid ah 13 dufcaddii alaabooyinka aan u qalmin, the unqualified items mainly involve surface corrosion resistance, Fasalka hufnaanta biyaha, isku-darka qulqulka iyo alaabada. Iyaga ka mid ah, the detection of metal contaminants (hoggamid) in two batches of products exceeded the standard.
Intaa waxaa dheer, the sampling inspection also referred to the QB / T 1334-2013 “General Specifications for Water Spouts” standard, and the sealing performance of the spouts was frozen at -10 ℃ for 4 saacadood, 8 saacadood, 12 saacadood, iyo 24 hours Risk monitoring. Baadhitaanka ka dib, 33 batches of water nozzles meet the standard requirements, and the compliance rate is 82.5%.
Falanqaynta Shayga ee Baadhitaanka
① Flow uniformity and water efficiency grade
Flow uniformity and water efficiency grade In the sample of this random inspection, one batch of water efficiency grade failed, the project pass rate was 97.5%; three batches of flow uniformity failed, the project pass rate was 92.5%. These two items are requirements for the energy efficiency of the water nozzle, and the uniformity of the flow rate is the prerequisite for evaluating the water efficiency level of the nozzle. Excessive flow rate of water nozzles will cause waste of water resources, which is not conducive to the implementation of China’s energy conservation and emission reduction policies.
②surface-ka iska caabbinta
Among the samples of this random inspection, 12 batches of surface corrosion resistance failed, iyo heerka kaarka ah ee mashruucan ayaa ahaa 70%. Products with unsatisfactory corrosion resistance on the surface are prone to rust during use and do not provide protection, affecting the aesthetics and use of the product. The corrosion resistance of the surface of the water nozzle not only depends on the electroplating process of the enterprise, Laakiin sidoo kale waxay ku lug leedahay dhinacyo kala duwan sida waxyaabaha, Geedi socodka waxdhiska, Bixinta iyo ka-hortagga.
③ Precipitation of metal contaminants
In the sample of this sampling, 2 batches of metal contaminants were deposited unqualified. The qualified rate of this project was 95%. Roobabkii wasakhda birta waxay la xiriirtaa caafimaadka aadanaha, Gaar ahaan uruurinta sunta rasaasta ee jirka bini aadamka, which can cause long-term health risks and affect the normal physiological functions of the human body. The copper grade of the spout product is low, and the production process of the enterprise does not meet the standard, which is the cause of the excessive precipitation of metal contaminants.
(Unqualified samples of gold contaminant precipitation)
④ axel
Among the samples of this random inspection, 7 batches of materials failed, and the pass rate of the project was 82.5%. Alaabada qaarkood waxay isticmaalaan zinc alloy, which is a corrosive material that is only 1/3 of the copper alloy. Qoraalkan waa fududahay in la saxaafo, taas oo aan kaliya saameynin muuqaalka, but also reduces the strength of the nozzle, and leaks and cracks after a period of use. Marka la barbar dhigo elexus coper, zinc alloys are low in price and easy to form. Some companies use zinc alloys to replace copper alloys in order to control costs and reduce processing links, in order to obtain greater profits.
⑤Risk items (Tijaabada heerkulka)
This spot test carried out a temperature test, taasi waa, the sealing performance was tested after freezing the water nozzle at -10 ℃ for 4 saacadood, 8 saacadood, 12 saacadood, iyo 24 saacadood. Kadib tijaabada, ka mid ah 40 batches of taps in this random inspection, wadar ahaan 7 batches showed leakage under low temperature environment.
Hadda, there is no corresponding national standard for the temperature resistance value of the faucet. Xaaladaha caadiga ah, the water nozzle will not be frozen and cracked at a few degrees below zero, but after freezing at low temperature, the water in the spool expands and condenses into ice, which will cause squeezing force on the spool. Waxaa jiri doona daadad ku saabsan xiriirka. Si loo badbaadiyo kharashyada, some production enterprises use poor quality brass as the casting material of the faucet. The metal ductility is greatly reduced, and it is easy to freeze and break at a low temperature.
(Sample with unsatisfactory freeze-thaw sealing performance)
Talada macaamiisha
① Avoid buying zinc alloy faucets
Zinc alloys are highly corrosive materials, and such products should be avoided first when purchasing faucets. Waxaa lagu kala saari karaa iyadoo loo eegayo daloolka gudaha ee sheyga. The copper material is generally a casting. The flatness of the inner wall of the product is not very good. The zinc alloy is obtained by injection grinding. The inner wall will be very smooth and the inner wall will have obvious separation lines. Under conditional conditions, the color of the zinc alloy may be white, while the copper alloy may be yellow.
② Avoid buying low-cost faucets
The unqualified rate of faucets under 100 yuan waa sida ugu sarreeya 85.7%, and it involves more materials, metal contaminants and other items that have a greater impact on consumer health, so it is not recommended to buy.
③ Look at the surface
Visually inspect whether the electroplated surface of the spout is uniformly lustrous, and pay attention to whether there are defects such as peeling, sheegi-qorista, scorching, exposed bottom, diil, black spots and obvious pitting. The surface structure of the sprayed surface should be fine, smooth and uniform without defects such as sagging and exposed bottom. No burr and grit feeling on the hand.
④ Look at the thread
The pipe thread of the water nozzle is connected with the connecting hose or pipe. Markaad iibsaneyso, visually inspect the thread surface for dents, broken teeth and other defects, especially pay attention to the effective length of the pipe thread.
⑤ Fiiri dareenka
You can try turning the handle up, hoose, bidix, iyo midig. If it feels light and there is no blockage, it means that the valve core is better. The main parts of a good quality spout are made of brass. U fiirso inaad kala soocdo badeecada adeegso ashyaa'da iyo balaastigga injineernimada, oo tayada iyo nolosheeda adeega ay yihiin kuwa aad u liita.
⑥Water saving
The faucet with a bubbler is better for saving water. Markaad iibsanayso, you can feel the flow of water by touching it with your hands. Qulqulka biyaha jilicsan iyo qulqulka hodanka ah (Biyaha qulqulka biyaha) indicate that the bubbler is of good quality.
