الشركة المصنعة لصنبور VIGA 
حديثاً, the Nanjing Municipal Bureau of Quality Supervision released the results of the 2017 residents’ home improvement products quality spot check, تنطوي على الحنفيات, أحواض من الفولاذ المقاوم للصدأ, 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%.
المعدل غير المؤهل من الصنابير تحت 20$ is as high as 85.7%
سابقًا, 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. بعد التفتيش, 27 batches were qualified and 13 batches were unqualified, مع معدل النجاح 67.5%.
Nanjing Quality Supervision Bureau classified the test results according to the product source and price range, and the results were eye-catching.
ال 40 batches of tap products sampled this time were 20 دفعات, 19 دفعات و 1 batch sampled from physical stores, منصات التجارة الإلكترونية وشركات التصنيع, على التوالى. فيما بينها, 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%.
من منظور أسعار المنتجات, معدل تمرير منتجات 70$ and above is 100% (unqualified rate 0%), and the pass rate of products between 20$ و 70$ يكون 85.7% (unqualified rate 14.3%). The pass rate of products between 20$ و 40$ يكون 62.5% (the unqualified rate is 37.5%), ومعدل تمرير منتجات 100 يوان وتحت 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 “صنبور الختم السيراميك” و GB 25501-2010 “Limited Value of Faucet Water Efficiency and Water Efficiency Grade”. من بين 13 مجموعات من المنتجات غير المؤهلة, the unqualified items mainly related to surface corrosion resistance, درجة كفاءة الماء, توحيد التدفق والمواد, من بينها 2 batches of products were detected to exceed the standard of metal pollutant precipitation (يقود).
فضلاً عن ذلك, 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 ساعات, 8 ساعات, 12 ساعات, و 24 hours at a low temperature of -10°C. Risk monitoring. بعد التفتيش, 33 batches of faucets meet the standard requirements, with a compliance rate of 82.5%.
تحليل عنصر التفتيش
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, وكان معدل تمرير هذا المشروع 97.5%; 3 batches of flow uniformity were unqualified, وكان معدل تمرير هذا المشروع 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 مقاومة التآكل السطحي
Among the samples sampled this time, 12 batches of surface corrosion resistance were unqualified, وكان معدل تمرير هذا المشروع 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, ولكن يتضمن أيضًا جوانب مختلفة مثل المواد, عملية الصب, التلميع والمعالجة.
③Precipitation of metal pollutants
Among the samples sampled this time, 2 batches of metal contaminants were unqualified, وكان معدل تمرير هذا المشروع 95%. يرتبط هطول الأمطار من ملوثات المعادن بصحة الإنسان, خاصة تراكم الرصاص في جسم الإنسان, 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)
material
Among the samples sampled this time, 7 batches of materials were unqualified, وكان معدل تمرير هذا المشروع 82.5%. تستخدم بعض المنتجات سبيكة الزنك, a corrosive material whose price is only 1/3 of copper alloy. هذه المواد سهلة التآكل, الذي لا يؤثر فقط على المظهر, but also reduces the strength of the faucet, causing water leakage and cracking after a period of use. مقارنة مع سبائك النحاس, 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 (اختبار درجة الحرارة)
This sampling conducted a temperature test, إنه, freezing the water nozzle at -10°C for 4 ساعات, 8 ساعات, 12 ساعات, و 24 hours to test the sealing performance. بعد الاختبار, من بين 40 batches of taps sampled this time, مجموع 7 batches of faucets have leaked in a low temperature environment.
في الوقت الحالي, there is no corresponding national standard for the freezing temperature value of faucets. في ظل الظروف العادية, 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. سيكون هناك تسرب عند الاتصال. من أجل توفير التكاليف, 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)
نصيحة المستهلك
①Avoid buying zinc alloy faucets
Zinc alloy is a corrosive material, so you should avoid this type of product when purchasing a faucet. يمكن تمييزه وفقًا للتجويف الداخلي للمنتج. 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 يوان مرتفع مثل 85.7%, and many items that have a greater impact on consumers’ صحة, 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, تكسير, burning, قاع, تقشير, dark spots and obvious pitting. The sprayed surface structure should be fine, على نحو سلس وموحد, 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. عند الشراء, 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 انظر إلى الشعور
Try turning the handle up, تحت, غادر, والحق. 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. انتبه إلى تمييز المنتجات التي تستخدم مواد السبائك والبلاستيك الهندسي, الذين جودتهم وحياة الخدمة سيئة نسبيا.
⑥ Water saving
The faucet with a bubbler saves water better. Feel the water flow with your hand when purchasing. تدفق المياه اللينة والرغوة الغنية (محتوى فقاعة تدفق المياه) indicate that the bubbler is of better quality.