[KongchangAI]
Unverified90% confidenceFactTime unknown

国家生活饮用水卫生标准(GB5749)并未对TDS设强制上限,仅溶解性总固体建议≤1000mg/L,因此市面上'TDS必须低于50才安全'的说法是净水器营销话术,纯净水TDS接近0但缺乏矿物质,长期给宝宝喝纯净水反而不建议

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