The ISO 15755:1999 standard specifies a method for estimating visible impurities in paper and Cardboard by reflecting light. Visual inspection is suitable for most paper and Cardboard, but papers with significant impurities need to be detected using instrumentation. The standard assesses the impurity area by means of a comparison chart and expresses the results in terms of impurity area per square meter of sheet (mm ²/m ²). This method helps to assess the cleanliness and mass of paper surfaces and is suitable for quality control and product acceptance.
This summary is not the original standard text and is for reference only. For accurate information, please obtain it through official channels.
| Status | Active | ||
|---|---|---|---|
| CCS | ICS | 85.060 | |
| Release Date | 1999-06-15 00:00:00 | Implementation Date | |