OpTest On-line Unit Measures Dirt Specks in Sheets
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The OpTest Equipment Co. (Hawkesbury, Ont., Canada), On-line Dirt In-speck-tor (ODI) measures visible dirt in sheets according to ISO 5350-4, TAPPI T563, and Paptac D35 standards. The ODI measures the number, size, and equivalent black area (EBA) of visible dirt specks far more precisely than the human eye. Operating on most pulp machines, it measures dirt specks on sheets moving up to 500 m/min. at a resolution of 0.02 mm˛. The ODI provides the information you need to ensure a high and consistent quality product.
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