VIGA蛇口メーカー 
最近, the Nanjing Municipal Bureau of Quality Supervision released the results of the 2017 residents’ home improvement products quality spot check, 蛇口関連, ステンレス鋼のシンク, 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%.
不適格タップ率 20$ is as high as 85.7%
以前, 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. 検査後, 27 batches were qualified and 13 batches were unqualified, の合格率で 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 バッチ, 19 バッチと 1 batch sampled from physical stores, eコマースプラットフォームと製造会社, それぞれ. その中で, 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%.
商品価格の観点から見ると, ～の製品の合格率 70$ and above is 100% (unqualified rate 0%), and the pass rate of products between 20$ そして 70$ は 85.7% (unqualified rate 14.3%). The pass rate of products between 20$ そして 40$ は 62.5% (the unqualified rate is 37.5%), の製品の合格率 100 元以下は 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 “セラミックシートシーリング蛇口” とGB 25501-2010 “Limited Value of Faucet Water Efficiency and Water Efficiency Grade”. の中で 13 不適格な製品のバッチ, the unqualified items mainly related to surface corrosion resistance, 節水グレード, 流れの均一性と材質, その中で 2 batches of products were detected to exceed the standard of metal pollutant precipitation (鉛).
加えて, 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 時間, 8 時間, 12 時間, そして 24 hours at a low temperature of -10°C. Risk monitoring. 検査後, 33 batches of faucets meet the standard requirements, with a compliance rate of 82.5%.
検査項目分析
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, このプロジェクトの合格率は 97.5%; 3 batches of flow uniformity were unqualified, このプロジェクトの合格率は 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表面耐食性
Among the samples sampled this time, 12 batches of surface corrosion resistance were unqualified, このプロジェクトの合格率は 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, 素材などさまざまな要素が含まれます, 鋳造工程, 研磨と前処理.
③Precipitation of metal pollutants
Among the samples sampled this time, 2 batches of metal contaminants were unqualified, このプロジェクトの合格率は 95%. 金属汚染物質の沈殿は人間の健康に関係します, 特に人体への鉛の蓄積, 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)
④材質
Among the samples sampled this time, 7 batches of materials were unqualified, このプロジェクトの合格率は 82.5%. 一部の製品には亜鉛合金が使用されています, a corrosive material whose price is only 1/3 of copper alloy. この材質は腐食しやすいです, 見た目に影響するだけではなく, but also reduces the strength of the faucet, causing water leakage and cracking after a period of use. 銅合金との比較, 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 (温度試験)
This sampling conducted a temperature test, つまり, freezing the water nozzle at -10°C for 4 時間, 8 時間, 12 時間, そして 24 hours to test the sealing performance. テスト後, の間で 40 batches of taps sampled this time, の合計 7 batches of faucets have leaked in a low temperature environment.
現在のところ, there is no corresponding national standard for the freezing temperature value of faucets. 通常の状況下で, 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. 接続部分で漏れが発生します. コストを節約するために, 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)
消費者へのアドバイス
①Avoid buying zinc alloy faucets
Zinc alloy is a corrosive material, so you should avoid this type of product when purchasing a faucet. 製品の内腔に応じて区別できます. 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 元は同じくらい高い 85.7%, and many items that have a greater impact on consumers’ 健康, 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, ひび割れ, burning, 底部, ピーリング, dark spots and obvious pitting. The sprayed surface structure should be fine, 滑らかで均一, 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. 購入するとき, 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 感触を見てください
Try turning the handle up, 下, 左, そして正しい. 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. 合金材料とエンジニアリングプラスチックを使用した製品の区別に注意してください, 品質と耐用年数が比較的悪い.
⑥ Water saving
The faucet with a bubbler saves water better. Feel the water flow with your hand when purchasing. 柔らかな水流と豊かな泡立ち (水流気泡含有量) indicate that the bubbler is of better quality.