Производитель смесителей VIGA 
Недавно, the Nanjing Municipal Bureau of Quality Supervision released the results of the 2017 residents’ home improvement products quality spot check, с участием кранов, раковины из нержавеющей стали, 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%.
Несчастный уровень кранов под 20$ is as high as 85.7%
Ранее, 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. После проверки, 27 batches were qualified and 13 batches were unqualified, с скоростью прохождения 67.5%.
Nanjing Quality Supervision Bureau classified the test results according to the product source and price range, and the results were eye-catching.
The 40 batches of tap products sampled this time were 20 партии, 19 партии и 1 batch sampled from physical stores, платформы электронной коммерции и производственные компании, соответственно. Среди них, 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%.
С точки зрения цен на продукты, скорость прохождения продуктов 70$ and above is 100% (unqualified rate 0%), and the pass rate of products between 20$ и 70$ является 85.7% (unqualified rate 14.3%). The pass rate of products between 20$ и 40$ является 62.5% (the unqualified rate is 37.5%), и скорость прохождения продуктов 100 Юань и ниже 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 “Керамический лист герметичный кран” и ГБ 25501-2010 “Limited Value of Faucet Water Efficiency and Water Efficiency Grade”. Среди 13 партия неквалифицированных продуктов, the unqualified items mainly related to surface corrosion resistance, Уровень эффективности воды, Расположение потока и материалы, среди которых 2 batches of products were detected to exceed the standard of metal pollutant precipitation (вести).
Кроме того, 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 часы, 8 часы, 12 часы, и 24 hours at a low temperature of -10°C. Risk monitoring. После проверки, 33 batches of faucets meet the standard requirements, with a compliance rate of 82.5%.
Анализ предметов проверки
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, и скорость прохождения этого проекта была 97.5%; 3 batches of flow uniformity were unqualified, и скорость прохождения этого проекта была 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.
② Поверхностная коррозионная стойкость
Among the samples sampled this time, 12 batches of surface corrosion resistance were unqualified, и скорость прохождения этого проекта была 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, но также включает в себя различные аспекты, такие как материал, процесс кастинга, полировка и предварительная обработка.
③Precipitation of metal pollutants
Among the samples sampled this time, 2 batches of metal contaminants were unqualified, и скорость прохождения этого проекта была 95%. Осаждение загрязнителей металлов связано со здоровьем человека, Особенно накопление свинца в человеческом организме, 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)
④material
Among the samples sampled this time, 7 batches of materials were unqualified, и скорость прохождения этого проекта была 82.5%. Некоторые продукты используют цинк сплав, a corrosive material whose price is only 1/3 of copper alloy. Этот материал легко коррозировать, который не только влияет на внешний вид, but also reduces the strength of the faucet, causing water leakage and cracking after a period of use. По сравнению с медными сплавами, 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 (температурная тест)
This sampling conducted a temperature test, то есть, freezing the water nozzle at -10°C for 4 часы, 8 часы, 12 часы, и 24 hours to test the sealing performance. После тестирования, Среди 40 batches of taps sampled this time, в общей сложности 7 batches of faucets have leaked in a low temperature environment.
В настоящий момент, there is no corresponding national standard for the freezing temperature value of faucets. В обычных обстоятельствах, 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. На подключении будет утечка. Чтобы сэкономить расходы, 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)
Потребительский совет
①Avoid buying zinc alloy faucets
Zinc alloy is a corrosive material, so you should avoid this type of product when purchasing a faucet. Его можно различить в соответствии с внутренней полостью продукта. 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 Юань настолько высок, как 85.7%, and many items that have a greater impact on consumers’ здоровье, 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, трещины, burning, bottoming, пилинг, dark spots and obvious pitting. The sprayed surface structure should be fine, smooth and uniform, 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. При покупке, 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 Посмотрите на ощущение
Try turning the handle up, вниз, левый, и правильно. 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. Обратите внимание на различие продуктов, которые используют сплавные материалы и инженерные пластмассы, чье качество и обслуживание срок службы относительно плохие.
⑥ Water saving
The faucet with a bubbler saves water better. Feel the water flow with your hand when purchasing. Поток мягкой воды и богатый пеной (Содержание пузырьков потока воды) indicate that the bubbler is of better quality.