在产品可能受到污染的区域，需要制定使用非渗透性的手套，发网，帽子，须套以及限制饮食，喝水，吸烟等的程序。

Procedures for use of impermeable gloves, hairnets, caps, beard covers, etc. and for restrictions on use of food, drinks, tobacco, etc. in areas whereby product contamination could occur.

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因为这种瓷料是陶瓷质地的，看起来像玻璃，与老式的物料不一样，其表面是光滑而且具有非渗透性，咖啡，茶叶红酒或是抽烟等都不会在其表面形成斑点。

Since porcelain is ceramic, and therefore glass-like, its surface is smooth and impervious and unlike older bonding materials, it will not be stained coffee, tea, red wine or cigarette smoking.

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遗憾的是，当外源(非母体)蛋白质进入婴儿的渗透性肠道时，可能会带来严重的健康问题。

Unfortunately, serious health problems can develop when foreign proteins are allowed into the infant's permeable intestinal tract.

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