你关注过自家厨房的水龙头会不会析出铅元素吗，留意过水龙头表面有无黑点吗？这些小细节其实正是验证水龙头是否符合标准的项目。日前，记者来到国家建筑材料工业建筑五金水暖产品质量监督检验测试中心，看看检测人员如何从众多水龙头中“挑”出劣质品。 You concern about your kitchen faucet will not exhalation lead elements，Tap on surface had black spots？These little detail is really just verify compliance with standard projects tap。a，The reporter comes to national building materials industry construction hardware plumbing products quality supervision and inspection and test center，See how many inspection personnel from the tap“pick”The cheap stuff。

　　新京报讯 (记者廖爱玲)昨天，北京市消协对外公布了对50种陶瓷片密封水龙头的比较试验结果，有3成多样品不达标，更需要留神的是，水龙头滞留的“隔夜水”可能会使材质不好的水龙头析出铅元素，须当心“铅中毒”。

The Beijing news- (Reporter LiaoAiLing)yesterday，Beijing announced the consumer advocates to 50 kinds of ceramic piece seal of faucet is test results，3 a sample is below standard，Need more careful is，Faucet the stranded“Overnight water”May make the material is bad faucet exhalation lead element，Must be careful“Lead poisoning”。

　　34%水龙头未达标 34% faucet not done

　　这些比较试验的水龙头由市消协人员以普通消费者的身份在北京各大型建材市场、建材超市随机购买，涉及北京、上海、广东等50种陶瓷片密封厨房水龙头。

These comparative trial by city disappear assist the faucet personnel to average consumer identity in Beijing each large building materials market、Building materials supermarket buy random，In Beijing、Shanghai、Guangdong, 50 kinds of ceramic piece seal kitchen faucet。

　　通过委托国家建筑材料工业建筑五金水暖产品质量监督检验测试中心，对水龙头的标志包装、盐雾试验、流量、密封性能、用水效率、铅析出浓度等测试，50个样品中有17个水龙头样本部分项目未能达到标准要求，占34%。不达标的水龙头样品包括“KEJIA 科家”牌7231型号、“OPAI 欧派”牌8504型号、“B&Q 百安居”牌BNQ1105-C003型号水龙头等，具体名单可登录市消协网站查询。

Through trust national building materials industry construction hardware plumbing products quality supervision and inspection and test center，The packaging symbol of the tap、Salt spray test、flow、Seal performance、Water use efficiency、Lead exhalation concentration on the test，50 samples have 17 faucet samples of the project is not up to the standard，34%。Substandard faucet samples including“KEJIA families home”Brand 7231 model、“OPAI opie”Brand 8504 model、“B&Q how to reside”Brand BNQ1105-C003 model faucet, etc，Specific list can be login city disappear assist website。

　　隔夜水易致铅析出 Overnight water easily lead to NSW

　　值得一提的是，居民家里的水龙头里经常会有水长期滞留，但水能使水龙头铅的保护膜脱落，可能造成水龙头铅元素的析出，尤其是水龙头滞留的“隔夜水”，铅金属可能含量更高。此次市消协专门请检测中心，参照行业标准测试了水龙头铅析出浓度，结果发现，仅有2个水龙头样品完全无铅析出。

It is，Residents of the home is often the tap water long-term stranded，But it makes the faucet lead protective film fall off，May cause the tap lead element of the exhalation，Especially the tap the stranded“Overnight water”，Lead metal may higher content。The city disappear assist special please test center，With reference to the industry standard test the tap lead exhalation concentration，The results found that，Only two faucet samples fully lead-free exhalation。

　　市消协消费指导部主任罗刚指出，铅在体内的量超过一定水平就会对健康造成损害，即“铅中毒”，过量的铅会损害神经、造血和生殖系统。

City disappear assist the director of consumer guide pointed out that recent，Lead in the body is more than a certain level will cause damage to health，namely“Lead poisoning”，The lead of excessive can damage nerve、Hematopoiesis and reproductive system。

　　国家建筑材料工业建筑五金水暖产品质量监督检验测试中心副总经理王巍透露，目前对水龙头的铅析出，只有一个行业标准，尚没有国家标准。国内目前已开始重视，一些大厂家采用低铅或无铅铜加工，而且国家将在明年发布《陶瓷片密封水嘴》最新标准，水龙头铅析出含量将纳入检测。

National building materials industry construction hardware plumbing products quality supervision and inspection and test center, vice general manager of WangWei disclosed，At present the faucet lead exhalation，Only an industry standard，There is no national standards。Domestic currently has started to pay attention to，Some big manufacturer with low lead or lead-free copper processing，And the country will be released in the next year《Ceramics piece seal water mouth》The latest standard，Faucet lead exhalation content will be included in the test。

　　市消协提醒，消费者选购时应仔细查看水龙头电镀质量，好的电镀锃亮如镜，用手在表面按一下，痕迹很快消失；还应试验水龙头开关的手感，挑选手感轻松、旋转顺畅的；此外还可以用手掂水龙头的质量，好的水龙头一般都很沉。

City disappear assist remind，When consumer choose and buy should be carefully check the tap plating quality，Good electroplating and shiny as a mirror，With his hand over the surface according to it，Trace quickly disappear；Still should test faucet switch feel，Choose feel relaxed、Smooth rotation of；In addition, it also can by hand weigh in hand taps of quality，Good faucet are usually very heavy。

　　1　仅2个水嘴无铅元素析出 1 only two water mouth lead-free element exhalation

　　试验目的：测试水龙头在浸泡10小时和24小时后的铅析出浓度。

Test purpose：Test the tap is soaked 10 hours and after 24 hours of lead exhalation concentration。

　　试验过程：检测人员把水龙头样品冲洗，接着在水龙头里装上相应的水，等浸泡到相应时间后，再用塑料小瓶提取浸提液，加入浓硝酸，将PH值控制在1以下，最后放到机器上检测，得出水龙头在浸泡之后的铅析出浓度。

Test process：Testing personnel faucet sample flush，Then in the tap mounted corresponding water，For such as to the corresponding after time，Garnish with plastic small bottle of extraction liquid soaks raises，Join nitric acid，Will the PH control in 1 below，Finally on the machine detection，The tap is that after the separation concentration soaking lead。

　　试验结果：50个样品中，除了2个水龙头样品均未检出铅析出量外，多数水龙头在10小时浸泡下铅析出浓度范围在0.002mg/L-0.223mg/L，24小时浸泡下铅析出浓度范围在0.001mg/L-0.208mg/L。

Test results：50 samples，In addition to two faucet sample was not detected in the lead of precipitation，Most of the faucet in 10 hours for lead concentration range in separation under 0.002 mg/L-0.223 mg/L，24 hours for lead concentration range in separation under 0.001 mg/L-0.208 mg/L。

　　试验分析提醒：该测试中心水暖卫浴检测部主任赵钢介绍，铅与空气接触时，表面会很快氧化，生成一层保护膜，但水能使铅的保护膜脱落，浸入水中，从而造成水嘴中铅元素的析出，尤其是水嘴中滞留的“隔夜水”，铅金属含量更高。一些企业为降低成本采用杂铜加工，使水龙头中铅的含量较高，使用过程中铅析出的可能性较大。

Test analysis remind：The test center plumbing &bathing detection of the director of the ZhaoGang introduced，Lead in contact with air，Surface will soon oxidation，Create a protective coating，But water can lead the protective film fall off，Submerged in water，Thus cause water mouth, the lead element of the exhalation，Especially in the mouth of water retention“Overnight water”，Lead metal content is higher。Some enterprise in order to reduce the cost by heterozygotes copper processing，Make the tap of the lead in content is higher，In the course of using more likely lead exhalation。

　　赵钢提醒，市民应避免饮用滞留在水龙头的“隔夜水”，每天早上在使用水龙头里的水之前，最好多放一会儿，这些水可以用容器盛装，用来冲洗卫生间。

ZhaoGang remind，People should avoid drinking the stranded in the tap“Overnight water”，Every morning in the tap water before use，Had better put for a while，The water can use containerized，Used to flush the toilet。

　　2　酸性环境下易生“铜绿” 2 the acidic environment breeds“p.”

　　试验目的：模拟水龙头在空气湿度大、弱酸性下是否容易被腐蚀。

Test purpose：Simulation in air humidity is big the faucet、Weak acidity whether is easy to corrosion。

　　试验过程：检测人员把水龙头样品放入盐水喷雾试验机里，试验箱持续24小时喷出雾状的盐酸溶液，以测试水龙头产品表面涂、镀层耐腐蚀能力，好的产品应达到10级，经过24小时试验后，表面依然会很光亮，但一些水龙头表面出现了斑斑点点。

Test process：Testing personnel faucet samples in salt water spray tester，Test cases for 24 hours of ejective mist shape of hydrochloric acid solution，To test the faucet product surface coating、Coating corrosion resistant ability，Good product should achieve 10 levels，After 24 hours after test，The surface would still be light，But some faucet surface appeared with dots。

　　试验结果：50个样品中，7个样品盐雾试验未达标，最差的水龙头只达到6级。

Test results：50 samples，7 samples, salt fog test not done，The worst of the tap only up to magnitude 6。

　　试验分析提醒：赵钢说，一些企业为降低电镀成本，在水龙头进行电镀前没有很好对表面进行除锈等必要处理，所以表面耐腐蚀能力差，很多居民会发现水龙头在使用一段时间后，表面就会产生“铜绿”、黑色斑点或腐蚀。建议消费者别用带酸、带碱的清洗剂去擦拭水龙头，否则容易造成腐蚀，最好使用中性清洁剂，以免降低水龙头的使用寿命。

Test analysis remind：ZhaoGang said，Some enterprises to reduce the cost of plating，In the tap before plating was not necessary to surface derusting processing，So the surface corrosion resistant ability is poor，Many residents will find the tap is used after period of time，Surface will be there“p.”、Black spots or corrosion。Suggest that consumers don't use with acid、The clear with alkali to wipe the tap，Otherwise easy to cause the corrosion，It is best to use the neutral cleaner，Lest reduce faucet service life。