Bag-o lang, the Nanjing Municipal Bureau of Quality Supervision released the results of the 2017 residents’ home improvement products quality spot check, nga naglambigit sa mga gripo, Stainless Steel Sinks, bathroom brackets and paint-free boards. The pass rate of faucets is the lowest at 67.5%, and the pass rate of faucets priced at 100 yuan and below is only 14.3%.
Ang dili kwalipikado nga rate sa mga tapes sa ilawom 20$ is as high as 85.7%
Kaniadto, the Nanjing Municipal Bureau of Quality and Technical Supervision commissioned the Nanjing Product Quality Supervision and Inspection Institute to conduct random inspections on 40 batches of faucet products sold by production enterprises, circulation areas and e-commerce platforms in Nanjing. Pagkahuman sa inspeksyon, 27 batches were qualified and 13 batches were unqualified, nga adunay usa ka pass rate sa 67.5%.
Nanjing Quality Supervision Bureau classified the test results according to the product source and price range, and the results were eye-catching.
Ang 40 batches of tap products sampled this time were 20 batch, 19 mga batch ug 1 batch sampled from physical stores, Mga Kompanya sa E-Commerce ug Mga Kompanya sa Pagtrabaho, sa tinagsa. Taliwala kanila, the qualification rate of physical store products is the lowest at 55%; the qualification rate of e-commerce platform products is 78.9%; and the qualification rate of production enterprises is 100%.
Gikan sa panan-aw sa mga presyo sa produkto, ang pass rate sa mga produkto sa 70$ and above is 100% (unqualified rate 0%), and the pass rate of products between 20$ ug 70$ mao 85.7% (unqualified rate 14.3%). The pass rate of products between 20$ ug 40$ mao 62.5% (the unqualified rate is 37.5%), ug ang pass rate sa mga produkto sa 100 yuan ug sa ubos 14.3% (the unqualified rate is 85.7%).
2 batches of faucet metal pollutants precipitation exceeded the standard
This sampling inspection was carried out in accordance with GB 18145-2014 “Ceramic Sheet Sealing Faucet” ug GB 25501-2010 “Limited Value of Faucet Water Efficiency and Water Efficiency Grade”. Lakip sa 13 mga hugpong sa mga dili kwalipikado nga mga produkto, the unqualified items mainly related to surface corrosion resistance, grado sa efficiency sa tubig, pag-agos sa pagkakapareho ug mga materyales, among which 2 batches of products were detected to exceed the standard of metal pollutant precipitation (manguna).
Dugang pa, this sampling inspection also refers to the standard of QB/T 1334-2013 “General Technical Conditions for Faucets”, and carried out the sealing performance of the faucet after freezing for 4 Oras, 8 Oras, 12 Oras, ug 24 hours at a low temperature of -10°C. Risk monitoring. Pagkahuman sa inspeksyon, 33 batches of faucets meet the standard requirements, with a compliance rate of 82.5%.
Pag-analisa sa Item sa Inspeksyon
①Flow uniformity and water efficiency grade
Flow uniformity and water efficiency grade Among the samples sampled this time, 1 batch of water efficiency grade was unqualified, ug ang pass rate sa kini nga proyekto 97.5%; 3 batches of flow uniformity were unqualified, ug ang pass rate sa kini nga proyekto 92.5%. These two items are the requirements for the energy efficiency of the water tap, and the uniformity of the flow is the prerequisite for evaluating the water efficiency grade of the tap. Excessive flow of water nozzles will cause waste of water resources, which is not conducive to the implementation of my country’s energy conservation and emission reduction policies.
②Surface corrosion resistensya
Among the samples sampled this time, 12 batches of surface corrosion resistance were unqualified, ug ang pass rate sa kini nga proyekto 70%. Products with unqualified surface corrosion resistance are prone to rust during use, which will not provide protection and affect the appearance and use of the product. The surface corrosion resistance of the faucet not only depends on the company’s electroplating process, apan naglangkit usab sa lainlaing mga aspeto sama sa materyal, Proseso sa Casting, Polishi ug Psakripisyo.
③Precipitation of metal pollutants
Among the samples sampled this time, 2 batches of metal contaminants were unqualified, ug ang pass rate sa kini nga proyekto 95%. Ang pag-ulan sa mga pollutant sa metal nga may kalabutan sa kahimsog sa tawo, Ilabi na ang panagtigum sa tingga sa lawas sa tawo, which can cause long-term health risks in the human body and affect the normal physiological functions of the human body. The low-grade copper grades of faucet products and the substandard production process of the enterprise are all causes of excessive precipitation of metal pollutants.
(Unqualified samples precipitated by gold contaminants)
Pataliwala
Among the samples sampled this time, 7 batches of materials were unqualified, ug ang pass rate sa kini nga proyekto 82.5%. Ang pipila ka mga produkto naggamit sa Zinc Alloy, a corrosive material whose price is only 1/3 of copper alloy. Kini nga materyal dali ra sa corrode, nga dili lamang makaapekto sa hitsura, but also reduces the strength of the faucet, causing water leakage and cracking after a period of use. Itandi sa mga alloy sa tumbaga, zinc alloys are cheap and easy to process. In order to control costs and reduce processing links, some companies use zinc alloys instead of copper alloys to make greater profits.
⑤ Risk items (pagsulay sa temperatura)
This sampling conducted a temperature test, kana, freezing the water nozzle at -10°C for 4 Oras, 8 Oras, 12 Oras, ug 24 hours to test the sealing performance. Pagkahuman sa pagsulay, Lakip sa 40 batches of taps sampled this time, sa kinatibuk-an 7 batches of faucets have leaked in a low temperature environment.
Sa pagkakaron, there is no corresponding national standard for the freezing temperature value of faucets. Ubos sa Normal nga Kahimtang, the faucet will not be frozen and cracked at a few degrees below zero, but after low-temperature freezing, due to the expansion and condensation of water in the valve core, the valve core will be squeezed and stressed. Adunay leakage sa koneksyon. Aron makatipig mga gasto, some manufacturers use poor-quality brass as the casting material for the faucet. The ductility of the metal is greatly reduced, and it is easy to freeze at low temperatures and almost breaks when it is knocked.
(Sample with unqualified freeze-thaw sealing performance)
Tambag sa Konsumo
①Avoid buying zinc alloy faucets
Zinc alloy is a corrosive material, so you should avoid this type of product when purchasing a faucet. Mahimo kini nga mailhan sumala sa sulud sa sulud sa sulud. Copper materials are generally castings, and the inner wall of the product is not very flat, while zinc alloys are injection-milled, the inner wall will be very smooth, and the inner wall has obvious separation lines. If possible, you can grind away the sample in an inconspicuous place to see the color. The color of zinc alloy is white, while copper alloy is yellow.
②Avoid buying low-cost faucets
The unqualified rate of faucets below 100 Si Yuan labi ka taas 85.7%, and many items that have a greater impact on consumers’ health, such as the precipitation of materials and metal pollutants, are not recommended.
③Look at the surface
Visually check whether the plating surface of the faucet is evenly glossy, and pay attention to whether there are any defects such as peeling, sa pag-cracking, burning, ubos sa, panukpong, dark spots and obvious pitting. The sprayed surface structure should be fine, hapsay ug uniporme, without defects such as sagging and bottoming. There is no burr or grit to the hand.
④Look at the thread
The pipe thread of the faucet is connected with the connecting hose or pipe. Kung Nagpalit, visually check the thread surface for defects such as dents and broken teeth. Pay special attention to the effective length of the pipe thread.
⑤ Tan-awa ang gibati
Try turning the handle up, sa ubos, wala, ug sa tuo. If it feels light and does not feel blocking, the valve core is better. The main parts of a good quality faucet are made of brass. Pagtagad sa pag-ila sa mga produkto nga naggamit mga Alloy Materials ug Plastics sa Engineering, kansang kalidad ug serbisyo sa serbisyo medyo kabus.
⑥ Water saving
The faucet with a bubbler saves water better. Feel the water flow with your hand when purchasing. Ang humok nga tubig sa tubig ug adunahan nga nagbula (Ang sulud sa tubig nga bubble sa tubig) indicate that the bubbler is of better quality.
