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Materials that do not contain harmful substances and are safe for use in products, especially those in contact with humans or the environment.
无毒物质材料在食品包装行业中必不可少。
Non-toxic materials are essential in the food packaging industry.
环保认证要求所有建筑材料必须符合无毒标准。
Environmental certification requires all building materials to meet non-toxic standards.
Often used in contexts like product safety certification, environmental regulations, or material science.
This phrase is typically used in technical, regulatory, or product safety contexts. Avoid using it in casual conversation unless discussing materials or products.
In many industries (e.g., toys, food packaging), products must pass '无毒' certification to be legally sold. Always check local regulations for specific requirements.
The term combines '无毒' (wú dú, 'non-toxic') and '物质材料' ('materials'). '无毒' derives from classical Chinese, while '物质材料' reflects modern material science terminology.
Commonly used in product safety certifications, environmental regulations, and material science literature. The phrase emphasizes absence of toxicity rather than other properties like durability or cost.