In order to ensure the safety of drinking water and promote industrial upgrading, China will also introduce the new national standard for taps. The restrictions on lead precipitation will be the focus of new standards, according to people involved in the national quality standards. But understands from tap water company, this is July 1, 2012 nationwide to enforce the new "drinking water health standards", a series of reasons, has been delayed to effect again, 2015 so far this year from last revised release, has six years.
       Sanitary enterprise put in lead-free faucet technology research and development
       Lead in addition to the common there are three ways: one is to wash the lead processing, adopt industrial washing lead powder soak, temporarily reduce the leading wall surface of lead, but time is a bit long, internal will lead continuous precipitation. This technique is simple to operate and most large-scale enterprises can execute. The second is to make lead-free copper, but lead-free copper has no uniform material standard in China or even globally. Its material performance is not stable and it is difficult to promote. Only a few enterprises are trying. Third, make stainless steel taps. Stainless steel is not lead free, it is a recognized safety material, widely used in the kitchen utensils, food machinery, medical devices and other fields, also become a new trend of lead-free faucet.
       The lead-free tap costs 5 yuan per cost
       ShuPeiShui the author reviewed the domestic and drinking water safety evaluation standard of equipment and protective materials, which regulates protective material in contact with the water soaking water sanitary requirements for lead shall not exceed 5 micrograms per liter. "One 7" report pointed out that the lead-free or close to lead-free faucet cost higher than lead the faucet, but to lead-free, can be in the production of raw materials used to replace lead, bismuth cost five yuan per only.