Nhà sản xuất vòi VIGA 
Gần đây, the Nanjing Municipal Quality Supervision Bureau released the results of the 2017 random inspection of the quality of household furnishings, liên quan đến vòi, Bồn rửa bằng thép không gỉ, 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%.
Tỷ lệ vòi không đủ tiêu chuẩn theo 100 nhân dân tệ cao như 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. Sau khi kiểm tra, 27 batches passed and 13 batches failed, với tỷ lệ đỗ là 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.
các 40 batches of faucet products in this random inspection were sampled from physical stores, nền tảng thương mại điện tử và các công ty sản xuất, respectively for 20 lô, 19 lô và 1 batch. Trong số đó, 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%.
Dưới góc độ giá sản phẩm, tỷ lệ đậu sản phẩm của 400 yuan and above is 100% (failure rate 0%), the pass rate of products between 200 nhân dân tệ và 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%), và tỷ lệ đậu sản phẩm của 100 nhân dân tệ trở xuống là 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” và GB 25501-2010 “Liquid Water Use Efficiency Limit Value and Water Use Efficiency Grade”. Trong số các 13 lô sản phẩm không đủ tiêu chuẩn, the unqualified items mainly involve surface corrosion resistance, cấp hiệu quả sử dụng nước, tính đồng nhất của dòng chảy và vật liệu. Trong số đó, the detection of metal contaminants (chỉ huy) in two batches of products exceeded the standard.
Ngoài ra, the sampling inspection also referred to the QB / T 1334-2013 “General Specifications for Water Spouts” tiêu chuẩn, and the sealing performance of the spouts was frozen at -10 ℃ for 4 giờ, 8 giờ, 12 giờ, Và 24 hours Risk monitoring. Sau khi kiểm tra, 33 batches of water nozzles meet the standard requirements, and the compliance rate is 82.5%.
Phân tích hạng mục kiểm tra
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.
②Chống ăn mòn bề mặt
Among the samples of this random inspection, 12 batches of surface corrosion resistance failed, và tỷ lệ đậu của dự án này là 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, but also involves various aspects such as material, casting process, polishing and pretreatment.
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%. The precipitation of metal pollutants is related to human health, especially the accumulation of lead in the human body, 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)
④Chất liệu
Among the samples of this random inspection, 7 batches of materials failed, and the pass rate of the project was 82.5%. Một số sản phẩm sử dụng hợp kim kẽm, which is a corrosive material that is only 1/3 of the copper alloy. Vật liệu này dễ bị ăn mòn, Điều này không chỉ ảnh hưởng đến ngoại hình, but also reduces the strength of the nozzle, and leaks and cracks after a period of use. So với hợp kim đồng, 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 (kiểm tra nhiệt độ)
This spot test carried out a temperature test, đó là, the sealing performance was tested after freezing the water nozzle at -10 ℃ for 4 giờ, 8 giờ, 12 giờ, Và 24 giờ. Sau khi thử nghiệm, trong số 40 batches of taps in this random inspection, Tổng cộng 7 batches showed leakage under low temperature environment.
Hiện tại, there is no corresponding national standard for the temperature resistance value of the faucet. Trong trường hợp bình thường, 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. Sẽ có rò rỉ ở kết nối. Để tiết kiệm chi phí, 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)
Lời khuyên tiêu dùng
① Avoid buying zinc alloy faucets
Zinc alloys are highly corrosive materials, and such products should be avoided first when purchasing faucets. Nó có thể được phân biệt theo khoang bên trong của sản phẩm. 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 nhân dân tệ cao như 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, vết nứt, scorching, exposed bottom, bong tróc, 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. Khi mua, visually inspect the thread surface for dents, broken teeth and other defects, especially pay attention to the effective length of the pipe thread.
⑤ Nhìn vào cảm nhận
You can try turning the handle up, xuống, bên trái, và đúng. 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. Chú ý phân biệt sản phẩm sử dụng chất liệu hợp kim và nhựa kỹ thuật, có chất lượng và tuổi thọ tương đối kém.
⑥Water saving
The faucet with a bubbler is better for saving water. Khi mua, you can feel the flow of water by touching it with your hands. Dòng nước mềm và tạo nhiều bọt (nội dung bong bóng dòng nước) indicate that the bubbler is of good quality.
