N° 433
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区分塑料封盖的颜色 应按照颜色来区分塑料盖,如饮料瓶盖。在此应考虑到它们非常光亮。
Color differentiation of plastic caps
Plastic caps for drinking bottles should be color differentiated. It has to be taken into account, that the closures are very glossy.
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N° 371
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检查金属部件上的镀铬层 应监测一个金属部件上是否存在镀铬层。
Chromium plating presence control
The presence of chromium plating on a metal part should be controlled.
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N° 297
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区分塑料管内接头的色差 应区分塑料管内接头的颜色。此处应注意,发光表面会降低三个不同部件的对比度之差;也即,三个部件的排列看起来可能比初看时更加紧密。
Color differentiation of plastic fittings
The color of plastic fittings should be controlled. At this, the high gloss factor of the surface reduces the contrast difference between the three different components.
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