据了解,目前市场上有许多纯净水没有达到其自我标榜的品质。有的电导率严重超标,有的水质不纯,甚至有的品牌的卫生标准还不如自来水。它们之所以能够闯进市场,就在于消费者对纯净水的生产工艺及水成分缺乏基本了解,陷入了价格误区,让一些不合格品牌钻了空子。北京市虽对纯净水生产厂实行严格的准产证制度以规范 It is understood that there are many pure waters on the market that have not reached their self-proclaimed quality. Some of the electrical conductivity is seriously excessive, some water quality is not pure, and even some brand hygiene standards are not as good as tap water. Their reason for being able to break into the market is that consumers lack a basic understanding of the production process and water components of purified water, and are caught in the price misunderstanding, allowing some unqualified brands to find a way out. Although Beijing implements a strict production permit system for pure water production plants,