N° 518
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回收的塑料颗粒的色检 应检测回收的塑料颗粒的颜色。在此应注意,在视窗后的各个颗粒的粒度的位置会发生改变,以致只有选择较大的测试点,才能获得有说服力的平均色值。此外,必须注意,视窗附近的温度高达120°C。
Color measurement of recycled plastic pellets
The color of recycled plastic pellets should be measured. It has to be taken into account, that the position of the pellets behind the inspection glass can vary, thus a big light spot has a certain advantage to get a proper average measurement value. Furthermore, it should be considered, that the ambient temperature around the inspection glass can reach 120°C.
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